Bump a bugfix version

.editorconfig

@@ -1,7 +0,0 @@
-[*.{kt,kts}]
-ij_kotlin_imports_layout = *
-ij_kotlin_line_break_after_multiline_when_entry = false
-ktlint_code_style = intellij_idea
-ktlint_function_naming_ignore_when_annotated_with = Composable
-ktlint_standard_class-signature = disabled
-ktlint_standard_mixed-condition-operators = disabled

.forgejo/ISSUE_TEMPLATE/config.yml

@@ -1 +0,0 @@
-blank_issues_enabled: false

.forgejo/workflows/baseline-profile.yml

@@ -1,62 +0,0 @@
-name: Baseline profile generation
-
-on:
-  schedule:
-    - cron: '30 0 * * *'
-  workflow_dispatch:
-  push:
-    branches:
-      - '**'
-    paths:
-      - 'benchmark/**'
-      - '.github/workflows/baseline-profile.yml'
-
-jobs:
-  baseline-profile:
-    runs-on: nekomoee
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v6
-
-      - name: Setup Java
-        uses: actions/setup-java@v5
-        with:
-          distribution: temurin
-          java-version-file: .java-version
-
-      - name: Setup Android SDK
-        uses: https://github.com/android-actions/setup-android@v4
-
-      - name: Setup Rust
-        uses: https://github.com/dtolnay/rust-toolchain@stable
-        with:
-          toolchain: nightly-2026-10-07
-          targets: aarch64-linux-android, thumbv7neon-linux-androideabi
-
-      - name: Rust Cache
-        uses: https://github.com/Swatinem/rust-cache@v2
-        with:
-          workspaces: "./app/src/main/rust"
-
-      - name: CMake Cache
-        uses: actions/cache/restore@v5
-        with:
-          path: app/.cxx
-          key: cmake-
-
-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v6
-        with:
-          cache-encryption-key: ${{ secrets.GradleEncryptionKey }}
-          cache-read-only: true
-
-      - name: Generate Baseline Profile
-        run: ./gradlew generateBaselineProfile
-          -Pandroid.testoptions.manageddevices.emulator.gpu="swiftshader_indirect"
-
-      - name: Upload reports
-        if: failure()
-        uses: actions/upload-artifact@v3
-        with:
-          name: reports
-          path: benchmark/build/reports

.forgejo/workflows/ci.yml

@@ -1,128 +0,0 @@
-name: CI
-
-on:
-  push:
-    branches:
-      - '*'
-  pull_request:
-  workflow_dispatch:
-
-jobs:
-  check:
-    runs-on: nekomoee
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v6
-
-      - name: Setup Java
-        uses: actions/setup-java@v5
-        with:
-          distribution: temurin
-          java-version-file: .java-version
-
-      - name: Setup Android SDK
-        uses: https://github.com/android-actions/setup-android@v4
-
-      - name: Setup Rust
-        uses: https://github.com/dtolnay/rust-toolchain@stable
-        with:
-          toolchain: nightly-2026-10-07
-          targets: aarch64-linux-android, thumbv7neon-linux-androideabi
-
-      - name: Rust Cache
-        uses: https://github.com/Swatinem/rust-cache@v2
-        with:
-          workspaces: "./app/src/main/rust"
-          shared-key: ${{ runner.os }}
-
-      - name: Rustfmt Check
-        working-directory: ./app/src/main/rust
-        run: cargo fmt --all -- --check
-
-      - name: Clippy Check
-        working-directory: ./app/src/main/rust
-        run: cargo clippy --target aarch64-linux-android --all-features -- -D warnings
-
-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v6
-        with:
-          cache-read-only: true
-
-      - name: Check build-logic
-        run: ./gradlew :build-logic:convention:check
-
-      - name: Spotless Check
-        run: ./gradlew spotlessCheck
-
-  default:
-    runs-on: nekomoee
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v6
-
-      - name: Setup Java
-        uses: actions/setup-java@v5
-        with:
-          distribution: temurin
-          java-version-file: .java-version
-
-      - name: Setup Android SDK
-        uses: https://github.com/android-actions/setup-android@v4
-
-      - name: Setup Rust
-        uses: https://github.com/dtolnay/rust-toolchain@stable
-        with:
-          toolchain: nightly-2026-10-07
-          targets: aarch64-linux-android, thumbv7neon-linux-androideabi
-
-      - name: Rust Cache
-        uses: https://github.com/Swatinem/rust-cache@v2
-        with:
-          workspaces: "./app/src/main/rust"
-          shared-key: ${{ runner.os }}
-          save-if: "false"
-
-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v6
-        with:
-          cache-encryption-key: ${{ secrets.GradleEncryptionKey }}
-
-      - name: CMake Cache
-        uses: actions/cache@v5
-        with:
-          path: app/.cxx
-          key: cmake-default-${{ hashFiles('rust-toolchain.toml', 'settings.gradle.kts', 'app/src/main/cpp/CMakeLists.txt', 'app/src/main/rust/Cargo.lock') }}
-          restore-keys: cmake-default-
-
-      - name: Build
-        run: ./gradlew assembleDefaultRelease
-
-      - name: Upload ARM64
-        uses: actions/upload-artifact@v3
-        with:
-          name: default-arm64-v8a-${{ github.sha }}
-          path: app/build/outputs/apk/default/release/app-default-arm64-v8a-release.apk
-
-      - name: Upload x86_64
-        uses: actions/upload-artifact@v3
-        with:
-          name: default-x86_64-${{ github.sha }}
-          path: app/build/outputs/apk/default/release/app-default-x86_64-release.apk
-
-      - name: Upload ARM32
-        uses: actions/upload-artifact@v3
-        with:
-          name: default-armeabi-v7a-${{ github.sha }}
-          path: app/build/outputs/apk/default/release/app-default-armeabi-v7a-release.apk
-
-      - name: Upload mapping
-        uses: actions/upload-artifact@v3
-        with:
-          name: default-mapping-${{ github.sha }}
-          path: app/build/outputs/mapping/defaultRelease/*.txt
-
-      - name: Upload native debug symbols
-        uses: actions/upload-artifact@v3
-        with:
-          name: default-native-debug-symbols-${{ github.sha }}
-          path: app/build/outputs/native-debug-symbols/defaultRelease/native-debug-symbols.zip

.forgejo/workflows/releases.yml

@@ -1,79 +0,0 @@
-name: Releases
-
-on:
-  push:
-    tags:
-      - "*"
-
-jobs:
-  build:
-    runs-on: nekomoee
-    steps:
-      - name: Free disk space
-        run: rm -rf $AGENT_TOOLSDIRECTORY
-
-      - name: Enable KVM group perms
-        run: |
-          echo 'KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"' | sudo tee /etc/udev/rules.d/99-kvm4all.rules
-          sudo udevadm control --reload-rules
-          sudo udevadm trigger --name-match=kvm
-
-      - name: Checkout
-        uses: actions/checkout@v6
-
-      - name: Setup Java
-        uses: actions/setup-java@v5
-        with:
-          distribution: temurin
-          java-version-file: .java-version
-
-      - name: Setup Rust
-        uses: https://github.com/dtolnay/rust-toolchain@stable
-        with:
-          toolchain: nightly-2026-10-07
-          targets: aarch64-linux-android, thumbv7neon-linux-androideabi
-
-      - name: Rust Cache
-        uses: https://github.com/Swatinem/rust-cache@v2
-        with:
-          workspaces: "./app/src/main/rust"
-
-      - name: CMake Cache
-        uses: actions/cache/restore@v5
-        with:
-          path: app/.cxx
-          key: cmake-
-
-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v6
-        with:
-          cache-encryption-key: ${{ secrets.GradleEncryptionKey }}
-          cache-read-only: true
-
-      - name: Generate Baseline Profile
-        run: ./gradlew generateBaselineProfile
-          -Pandroid.testoptions.manageddevices.emulator.gpu="swiftshader_indirect"
-          -Prelease
-
-      - name: Build
-        run: ./gradlew assembleRelease
-          -Prelease
-
-      - name: Rename Apks
-        run: |
-          mkdir release
-          mv app/build/outputs/apk/default/release/app-default-universal-release.apk         release/EhViewer-${{ github.ref_name }}-default-universal.apk
-          mv app/build/outputs/apk/default/release/app-default-arm64-v8a-release.apk         release/EhViewer-${{ github.ref_name }}-default-arm64-v8a.apk
-          mv app/build/outputs/apk/default/release/app-default-x86_64-release.apk            release/EhViewer-${{ github.ref_name }}-default-x86_64.apk
-          mv app/build/outputs/apk/default/release/app-default-armeabi-v7a-release.apk       release/EhViewer-${{ github.ref_name }}-default-armeabi-v7a.apk
-          mv app/build/outputs/mapping/defaultRelease/mapping.txt                            release/EhViewer-${{ github.ref_name }}-default-mapping.txt
-          mv app/build/outputs/native-debug-symbols/defaultRelease/native-debug-symbols.zip  release/EhViewer-${{ github.ref_name }}-default-native-debug-symbols.zip
-
-      - name: Releases
-        uses: actions/forgejo-release@v2
-        with:
-          direction: upload
-          url: https://codeberg.org
-          repo: EhViewer/EhViewer
-          release-dir: release
-          body: Bump Version

.github/ISSUE_TEMPLATE/bug-report.yml

@@ -6,10 +6,10 @@ body:
   - type: markdown
     attributes:
       value: |
-        感谢您愿意为 EhViewer 做出贡献！
+        感谢您愿意为 Ehviewer-Overhauled 做出贡献！
         提交问题报告前，还请首先完成文末的自查步骤
 
-        Thanks for your contribution on EhViewer Project!
+        Thanks for your contribution on Ehviewer-Overhauled Project!
         Please finish verify steps which list in the end first before create bug report
 
   - type: textarea
@@ -18,9 +18,7 @@ body:
       label: 复现步骤 / Step to reproduce
       description: |
         请从全新安装应用开始，在此处写下复现的方式。请尽量附带录屏
-        如果不能稳定复现，请在下方上传应用日志
         Describe how to reproduce here with fresh installation, with screen recording if possible.
-        If you can't reproduce it consistently, please upload app logs below
       placeholder: |
         0. 重新安装应用 / Fresh install
         1.
@@ -57,15 +55,6 @@ body:
     validations:
       required: true
 
-  - type: textarea
-    id: log
-    attributes:
-      label: 应用日志 / App logs
-      description: 您可以通过设置-高级-导出日志来获得日志文件 / You can get logs file in Settings - Advanced - Dump logcat
-      placeholder: 06-15 17:44:53.704 23382 23382 E ...
-    validations:
-      required: true
-
   - type: textarea
     id: more
     attributes:
@@ -79,15 +68,6 @@ body:
     validations:
       required: false
 
-  - type: input
-    id: site
-    attributes:
-      label: 浏览站点 / Browsing site
-      description: E-Hentai / ExHentai
-      placeholder: E-Hentai
-    validations:
-      required: true
-
   - type: input
     id: version
     attributes:
@@ -101,8 +81,8 @@ body:
     id: ci
     attributes:
       label: EhViewer CI 版本 / EhViewer CI Version
-      description: 位于设置 - 关于中的版本号后 / Next to the version code in Settings - About
-      placeholder: 26f05a0
+      description: 直接将对应 GitHub Action CI 下载页面网址填入即可 / Simply drop GitHub Action CI download page url here
+      placeholder: https://github.com/Ehviewer-Overhauled/Ehviewer/actions/runs/XXXXXXXXXX
     validations:
       required: true
 
@@ -141,11 +121,17 @@ body:
         请确认您已经遵守所有必选项
         Please ensure you have obtained all needed options
       options:
-      - label: 您已搜索过 [Issue Tracker](https://github.com/FooIbar/EhViewer/issues)，没有找到类似内容 / I have searched on [Issue Tracker](https://github.com/FooIbar/EhViewer/issues), No duplicate or related open issue has been found
+      - label: 如果您有足够的时间和能力，并愿意为此提交 PR ，请勾上此复选框 / Pull request is welcome. Check this if you want to start a pull request
+        required: false
+
+      - label: 您已仔细查看并知情 [Q&A](https://github.com/Ehviewer-Overhauled/Ehviewer/issues/61) 中的内容 / You have checked [Q&A](https://github.com/Ehviewer-Overhauled/Ehviewer/issues/61) carefully
+        required: true
+
+      - label: 您已搜索过 [Issue Tracker](https://github.com/Ehviewer-Overhauled/Ehviewer/issues)，没有找到类似内容 / I have searched on [Issue Tracker](https://github.com/Ehviewer-Overhauled/Ehviewer/issues), No duplicate or related open issue has been found
         required: true
 
       - label: 您确保这个 Issue 只提及一个问题。如果您有多个问题报告，烦请发起多个 Issue / Ensure there is only one bug report in this issue. Please make mutiply issue for mutiply bugs
         required: true
 
-      - label: 您确保已使用最新 [CI 版本](https://github.com/FooIbar/EhViewer/actions)测试，并且该问题在最新 CI 版本中并未解决 / This bug have not solved in latest [CI version](https://github.com/FooIbar/EhViewer/actions)
+      - label: 您确保已使用最新 CI 版本测试，并且该问题在最新 CI 版本中并未解决 / This bug have not solved in latest CI version
         required: true

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,5 @@
+blank_issues_enabled: false
+contact_links:
+ - name: 所有其他问题 / All other questions
+   url: https://github.com/Ehviewer-Overhauled/Ehviewer/discussions
+   about: 转到 Discussions / Turn to discussions

.github/ISSUE_TEMPLATE/feature-request.yml

@@ -0,0 +1,94 @@
+name: 功能请求 / Feature request
+description: 提出一个功能建议 / Suggest an idea
+labels:
+  - "enhancement"
+body:
+  - type: markdown
+    attributes:
+      value: |
+        感谢您愿意为 Ehviewer-Overhauled 做出贡献！
+        提交功能建议前，还请首先完成文末的自查步骤
+
+        Thanks for your contribution on Ehviewer-Overhauled Project!
+        Please finish verify steps which list in the end first before suggest an idea
+
+  - type: textarea
+    id: request
+    attributes:
+      label: 需求 / Requirement
+      description: |
+        在此处描述您的需求。这通常会是一个您想要的功能
+        Ddescribe what you need here.
+      placeholder: |
+          我需要 XXX 功能 ...
+          I want ABC feature ...
+    validations:
+      required: true
+
+  - type: textarea
+    id: impl
+    attributes:
+      label: 建议实现 / Suggested implements
+      description: |
+        在此处表述您建议的实现方式。如有可能，UI 类功能请求还请尽量附上图示
+        Describe your suggested implements here, It's recommend to add a photo if you are making a UI feature request.
+      placeholder: |
+          建议在 XX 处添加 XX ...
+          I recommend add ABC feature to DEF...
+          图片（如果有）/ Photos (if exists)
+    validations:
+      required: true
+
+  - type: textarea
+    id: more
+    attributes:
+      label: 备注 / Addition details
+      description: |
+        在此处写下其他您想说的内容
+        Describe addition details here
+      placeholder: |
+        其他有用的信息与附件
+        Additional details and attachments
+    validations:
+      required: false
+
+  - type: input
+    id: version
+    attributes:
+      label: EhViewer 版本号 / EhViewer version code
+      description: 您可以在设置 - 关于处找到版本号 / You can get version code in Settings - About
+      placeholder: 1.6.9.13
+    validations:
+      required: true
+
+  - type: input
+    id: ci
+    attributes:
+      label: EhViewer CI 版本 / EhViewer CI Version
+      description: 直接将对应 GitHub Action CI 下载页面网址填入即可 / Simply drop GitHub Action CI download page url here
+      placeholder: https://github.com/Ehviewer-Overhauled/Ehviewer/actions/runs/XXXXXXXXXX
+    validations:
+      required: true
+
+  - type: checkboxes
+    id: check
+    attributes:
+      label: 自查步骤 / Verify steps
+      description: |
+        请确认您已经遵守所有必选项
+        Please ensure you have obtained all needed options
+      options:
+      - label: 如果您有足够的时间和能力，并愿意为此提交 PR ，请勾上此复选框 / Pull request is welcome. Check this if you want to start a pull request
+        required: false
+
+      - label: 您已仔细查看并知情 [Q&A](https://github.com/Ehviewer-Overhauled/Ehviewer/issues/61) 中的内容 / You have checked [Q&A](https://github.com/Ehviewer-Overhauled/Ehviewer/issues/61) carefully
+        required: true
+
+      - label: 您已搜索过 [Issue Tracker](https://github.com/Ehviewer-Overhauled/Ehviewer/issues)，没有找到类似内容 / I have searched on [Issue Tracker](https://github.com/Ehviewer-Overhauled/Ehviewer/issues), No duplicate or related open issue has been found
+        required: true
+
+      - label: 您确保这个 Issue 只提及一个功能。如果您有多个功能请求，烦请发起多个 Issue / Ensure there is only one feature request in this issue. Please make mutiply issue for mutiply feature request
+        required: true
+
+      - label: 您确保已使用最新 CI 版本测试，并且该功能在最新 CI 版本中并未按照预期实现 / This feature don't implement correctly in latest CI version
+        required: true

.github/workflows/ci.yml

@@ -0,0 +1,65 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - '*'
+    tags-ignore:
+      - "*"
+
+jobs:
+  linux:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          submodules: 'recursive'
+
+      - name: Setup Java 19
+        uses: actions/setup-java@v3
+        with:
+          distribution: temurin
+          java-version: 19
+
+      - name: Install NDK
+        run: |
+          echo "y" | sudo ${ANDROID_HOME}/tools/bin/sdkmanager --install "ndk;25.2.9519653" --sdk_root=${ANDROID_SDK_ROOT} &> /dev/null
+
+      - name: Gradle Build
+        uses: gradle/gradle-build-action@v2
+        with:
+          gradle-home-cache-cleanup: true
+          arguments: assembleRelease
+
+      - name: Update ARM64
+        uses: actions/upload-artifact@v3
+        with:
+          name: arm64-v8a-${{ github.sha }}
+          path: app/build/outputs/apk/release/app-arm64-v8a-release.apk
+
+      - name: Update x86_64
+        uses: actions/upload-artifact@v3
+        with:
+          name: x86_64-${{ github.sha }}
+          path: app/build/outputs/apk/release/app-x86_64-release.apk
+
+      - name: Update ARM32
+        uses: actions/upload-artifact@v3
+        with:
+          name: armeabi-v7a-${{ github.sha }}
+          path: app/build/outputs/apk/release/app-armeabi-v7a-release.apk
+
+      - name: Update x86
+        uses: actions/upload-artifact@v3
+        with:
+          name: x86-${{ github.sha }}
+          path: app/build/outputs/apk/release/app-x86-release.apk
+
+      - name: Update mapping
+        uses: actions/upload-artifact@v3
+        with:
+          name: mapping-${{ github.sha }}
+          path: app/build/outputs/mapping/release/mapping.txt
+          retention-days: 5

.github/workflows/pull_request.yml

@@ -0,0 +1,52 @@
+name: Pull Request Check
+
+on: [pull_request]
+
+jobs:
+  linux:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          submodules: 'recursive'
+
+      - name: Setup Java 19
+        uses: actions/setup-java@v3
+        with:
+          distribution: temurin
+          java-version: 19
+
+      - name: Install NDK
+        run: |
+          echo "y" | sudo ${ANDROID_HOME}/tools/bin/sdkmanager --install "ndk;25.2.9519653" --sdk_root=${ANDROID_SDK_ROOT} &> /dev/null
+
+      - name: Gradle Build
+        uses: gradle/gradle-build-action@v2
+        with:
+          arguments: assembleRelease
+
+      - name: Update ARM64
+        uses: actions/upload-artifact@v3
+        with:
+          name: arm64-v8a-${{ github.sha }}
+          path: app/build/outputs/apk/release/app-arm64-v8a-release.apk
+
+      - name: Update x86_64
+        uses: actions/upload-artifact@v3
+        with:
+          name: x86_64-${{ github.sha }}
+          path: app/build/outputs/apk/release/app-x86_64-release.apk
+
+      - name: Update ARM32
+        uses: actions/upload-artifact@v3
+        with:
+          name: armeabi-v7a-${{ github.sha }}
+          path: app/build/outputs/apk/release/app-armeabi-v7a-release.apk
+
+      - name: Update x86
+        uses: actions/upload-artifact@v3
+        with:
+          name: x86-${{ github.sha }}
+          path: app/build/outputs/apk/release/app-x86-release.apk

.github/workflows/releases.yml

@@ -0,0 +1,73 @@
+name: Releases
+
+on:
+  push:
+    tags:
+      - "*"
+
+jobs:
+  linux:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          submodules: 'recursive'
+
+      - name: Setup Java 19
+        uses: actions/setup-java@v3
+        with:
+          distribution: temurin
+          java-version: 19
+
+      - name: Install NDK
+        run: |
+          echo "y" | sudo ${ANDROID_HOME}/tools/bin/sdkmanager --install "ndk;25.2.9519653" --sdk_root=${ANDROID_SDK_ROOT} &> /dev/null
+
+      - name: Gradle Build
+        uses: gradle/gradle-build-action@v2
+        with:
+          arguments: assembleRelease
+
+      - name: Rename Apks
+        run: |
+          cp app/build/outputs/apk/release/app-universal-release.apk app/build/outputs/apk/release/EhViewer-universal.apk
+          cp app/build/outputs/apk/release/app-arm64-v8a-release.apk app/build/outputs/apk/release/EhViewer-arm64-v8a.apk
+          cp app/build/outputs/apk/release/app-x86_64-release.apk app/build/outputs/apk/release/EhViewer-x86_64.apk
+          cp app/build/outputs/apk/release/app-x86-release.apk app/build/outputs/apk/release/EhViewer-x86.apk
+          cp app/build/outputs/apk/release/app-armeabi-v7a-release.apk app/build/outputs/apk/release/EhViewer-armeabi-v7a.apk
+
+      - name: Releases
+        uses: softprops/action-gh-release@v1
+        with:
+          body: Bump Version
+          discussion_category_name: Announcements
+          files: |
+            app/build/outputs/apk/release/EhViewer-universal.apk
+            app/build/outputs/apk/release/EhViewer-arm64-v8a.apk
+            app/build/outputs/apk/release/EhViewer-x86_64.apk
+            app/build/outputs/apk/release/EhViewer-x86.apk
+            app/build/outputs/apk/release/EhViewer-armeabi-v7a.apk
+            app/build/outputs/mapping/release/mapping.txt
+
+      - name: Collect Apks
+        run: |
+          mkdir app/build/outputs/apk/release/fdroid
+          cp app/build/outputs/apk/release/app-arm64-v8a-release.apk app/build/outputs/apk/release/fdroid/EhViewer-v$GITHUB_REF_NAME.apk
+          cp app/build/outputs/apk/release/app-armeabi-v7a-release.apk app/build/outputs/apk/release/fdroid/EhViewer-v$GITHUB_REF_NAME-armv7.apk
+
+      - name: Push Apks
+        uses: Ehviewer-Overhauled/github-action-push-to-another-repository@main
+        env:
+         SSH_DEPLOY_KEY: ${{ secrets.SSH_DEPLOY_KEY }}
+        with:
+          source-directory: app/build/outputs/apk/release/fdroid
+          destination-github-username: Ehviewer-Overhauled
+          destination-repository-name: fdroid-repo
+          user-name: 'github-actions[bot]'
+          user-email: 'github-actions[bot]@users.noreply.github.com'
+          target-branch: deploy
+          create-target-branch: true
+          commit-message: Add apks from $GITHUB_REF
+          target-directory: fdroid/tmp-apks

.gitignore

@@ -1,10 +1,10 @@
 .gradle
 /local.properties
 .DS_Store
-build
-.cxx
-.kotlin
+/build
+/src
 *.iml
 .idea
-.vscode
 /captures
+release
+google-services.json

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "app/src/main/cpp/nettle/nettle"]
+	path = app/src/main/cpp/nettle/nettle
+	url = https://github.com/Ehviewer-Overhauled/nettle

.java-version

@@ -1 +0,0 @@
-25

CHANGELOG.zh-CN.MD

@@ -1,588 +0,0 @@
-# 变更日志
-
-## [1.14.6] - 2025-12-17
-
-### 新功能
-
-* 支持显示画廊阅读进度（于 EH 设置中开启） [#2277](https://github.com/FooIbar/EhViewer/issues/2277)
-
-### 改进
-
-* 画廊列表变化时重新显示悬浮操作按钮 [#2681](https://github.com/FooIbar/EhViewer/issues/2681)
-* 移除文件名中的尾随空格和点以兼容 Windows [#2727](https://github.com/FooIbar/EhViewer/issues/2727)
-* 长按画廊详情中的标签时显示标签名称 [#2769](https://github.com/FooIbar/EhViewer/issues/2769)
-* 杂项优化
-
-### Bug 修复
-
-* 对话框中的下拉菜单显示错位
-* HTTP 状态错误显示为“什么都没有找到”
-* 某些老设备无法通过 Cloudflare 验证 [#2794](https://github.com/FooIbar/EhViewer/issues/2794)
-* 杂项修复
-
-
-## [1.14.5] - 2025-10-19
-
-### 改进
-
-* [阅读器] 显示画廊标题
-* [阅读器] 显示菜单时改变标题栏颜色
-
-### Bug 修复
-
-* 横屏模式下打开阅读器设置会闪退 [#2673](https://github.com/FooIbar/EhViewer/issues/2673)
-* 强制横屏时竖直拿取设备加载图片会横竖屏乱跳 [#2674](https://github.com/FooIbar/EhViewer/issues/2674)
-
-
-## [1.14.4] - 2025-10-12
-
-### 改进
-
-* [阅读器] 支持禁用使用音量键翻页 [#2593](https://github.com/FooIbar/EhViewer/issues/2593)
-* 视搜索警告为错误 [#2604](https://github.com/FooIbar/EhViewer/issues/2604)
-* 余额不足时停止下载并显示通知 [#2479](https://github.com/FooIbar/EhViewer/issues/2479)
-* [阅读器] 使用默认阅读模式时对带有 webtoon 标签的画廊自动使用条漫模式 [#2632](https://github.com/FooIbar/EhViewer/issues/2632)
-* 优化按页数排序下载项目的速度
-* 开启显示标签投票状态时为 power >= 100 的标签添加下划线
-* 杂项优化
-
-### Bug 修复
-
-* Android 16 QPR1 上画廊详情中的标签文本对比度不足
-* 初始化 DownloadManager 用时过长导致 ANR [#2588](https://github.com/FooIbar/EhViewer/issues/2588)
-* 某些设备上无法下载名称较长的画廊 [#2607](https://github.com/FooIbar/EhViewer/issues/2607)
-* 评论区链接实际可点击区域比画面显示上的略长 [#2615](https://github.com/FooIbar/EhViewer/issues/2615)
-* 主页快速搜索再次打开出现以前的画廊重复出现在最上层 [#2628](https://github.com/FooIbar/EhViewer/issues/2628)
-* 非条漫模式下原始大小较小的动图不播放 [#2652](https://github.com/FooIbar/EhViewer/issues/2652)
-* Android 9 以下打开评论区切屏后回来会闪退 [#2655](https://github.com/FooIbar/EhViewer/issues/2655)
-* 杂项修复
-
-
-## [1.14.3] - 2025-09-01
-
-### 新功能
-
-* 支持以 label: 语法搜索下载标签
-
-### Bug 修复
-
-* [阅读器] 关闭滤镜设置时崩溃 [#2573](https://github.com/FooIbar/EhViewer/issues/2573)
-* 编辑评论时上下文菜单缺少格式化选项
-* 某些情况下搜索相似画廊时出错
-
-
-## [1.14.2] - 2025-08-16
-
-### 改进
-
-* [下载] 支持将最低下载速度设为 0 [#2545](https://github.com/FooIbar/EhViewer/issues/2545)
-* [下载] 移除令人困惑的连接超时设置 [#2556](https://github.com/FooIbar/EhViewer/issues/2556)
-
-### Bug 修复
-
-* 下载速度计算不准确导致下载失败误报 [#2545](https://github.com/FooIbar/EhViewer/issues/2545)
-* 无法解析带有 location: 标签的画廊
-
-
-## [1.14.1] - 2025-07-31
-
-### 改进
-
-* 更新 GitHub 访问令牌
-
-
-## [1.14.0] - 2025-07-23
-
-### 重大变更
-
-* 默认隐藏分数为 -100 的评论
-* 迁移部分组件到 Material 3 Expressive
-
-### 新功能
-
-* [EH] 支持显示标签投票状态
-* 支持添加画廊标签时自动补全
-* [下载] 支持指定连接超时和最低响应速度 [#1915](https://github.com/FooIbar/EhViewer/issues/1915)
-* [阅读器] 支持反转物理按键控制 [#1962](https://github.com/FooIbar/EhViewer/issues/1962)
-* [高级] 支持禁用 QUIC 支持
-* [高级] 重新添加桌面版网站选项以绕过 Cloudflare [#2230](https://github.com/FooIbar/EhViewer/issues/2230)
-* 支持 Android 6.0 上的动画 WebP
-
-### 改进
-
-* 优化压缩包加载性能
-* 优化预加载策略
-* 更新日本语翻译
-* 为已选中的项目使用不同的颜色 [#2121](https://github.com/FooIbar/EhViewer/issues/2121)
-* 缩略图模式下显示已收藏图标 [#2128](https://github.com/FooIbar/EhViewer/issues/2128)
-* 迁移大部分解析器到 Rust 实现
-* 优化动画 WebP 解码性能 [#2415](https://github.com/FooIbar/EhViewer/issues/2415)
-* 优化标签自动补全命中率 [#2473](https://github.com/FooIbar/EhViewer/issues/2473)
-* 在状态栏后绘制半透明背景以提高对比度
-* 杂项优化
-
-### Bug 修复
-
-* 退出阅读器时崩溃
-* Android 8.0 以下的设备无法读取某些压缩包
-* 列表模式下点击画廊封面无法进入详情页
-* 点击某些评论时崩溃
-* 开启裁剪边缘时某些图片被不正确裁剪
-* 下载数较多时无网络时启动 app 时崩溃 [#2041](https://github.com/FooIbar/EhViewer/issues/2041)
-* 标签翻译数据无法更新 [#2075](https://github.com/FooIbar/EhViewer/issues/2075)
-* 画廊详情页面显示的收藏夹名称错误 [#2081](https://github.com/FooIbar/EhViewer/issues/2081)
-* 不使用 CI 频道时无法更新
-* 添加后移动快捷搜索闪退 [#2124](https://github.com/FooIbar/EhViewer/issues/2124)
-* 某些数据无法导入
-* App 位于后台时清除下载通知时崩溃
-* 杂项修复
-
-
-## [1.13.1] - 2024-11-11
-
-### 重大变更
-
-* 由于网站限制，移除搜索封面功能
-* 移除桌面版网站选项，默认使用 1280x 分辨率
-
-### 改进
-
-* 更新日本语翻译
-* 优化压缩包读取
-* 缓解某些小米系统上应用闪退 [#1826](https://github.com/FooIbar/EhViewer/issues/1826)
-* 杂项优化
-
-### Bug 修复
-
-* Android 9 上的下载失败误报 [#1914](https://github.com/FooIbar/EhViewer/issues/1914)
-
-
-## [1.13.0] - 2024-11-01
-
-### 重大变更
-
-* 不再捆绑 Cronet 库，在不支持 HttpEngine 的设备上回退到 OkHttp
-* 适配 E 站缩略图和 WebP 等相关变更
-
-### 改进
-
-* 使用磁力链接代替种子下载
-* 在搜索栏右侧显示论坛头像
-* 支持重置下载路径
-* 为 Android 10 以下且没有 DocumentsUI 的设备创建默认下载目录 [#1735](https://github.com/FooIbar/EhViewer/issues/1735)
-* 重新添加了强制使用 e-hentai 缩略图服务器的选项
-* 阅读器支持 PageUp/PageDown 和方向键上/下翻页 [#1801](https://github.com/FooIbar/EhViewer/issues/1801)
-* 未找到搜索结果时显示可能存在的警告 [#1787](https://github.com/FooIbar/EhViewer/issues/1787)
-* 更新了日本语翻译
-* 杂项优化
-
-### Bug 修复
-
-* 阅读器屏幕方向与手机屏幕方向不同时闪退 [#1779](https://github.com/FooIbar/EhViewer/issues/1779)
-* 下载文件哈希不匹配导致下载失败 [#1811](https://github.com/FooIbar/EhViewer/issues/1811)
-* 无法同时下载和查看 [#1822](https://github.com/FooIbar/EhViewer/issues/1822)
-* 杂项修复
-
-
-## [1.12.1] - 2024-09-28
-
-### 新功能
-
-* 屏蔽含有二维码的图片（位于高级设置）
-
-### 改进
-
-* 移除高级设置中的自定义 User Agent，改为桌面版网站选项
-* 画廊预览与画廊详情页面合并
-* 为快速搜索和下载标签列表添加了滚动条
-* 无网络条件下启动时自动转到下载页面
-* 杂项优化
-
-### Bug 修复
-
-* 从左到右或右到左模式观看使用鼠标滚轮无法翻页 [#1541](https://github.com/FooIbar/EhViewer/issues/1541)
-* 状态栏颜色未跟随阅读器主题变化 [#1542](https://github.com/FooIbar/EhViewer/issues/1542)
-* 打开 EH 设置时闪退 [#1563](https://github.com/FooIbar/EhViewer/issues/1563)
-* 画廊种子过多时显示没有种子 [#1561](https://github.com/FooIbar/EhViewer/issues/1561)
-* 加载大于 100 MB 的位图时崩溃
-* 阅读器加载小圆圈在黑色背景下不自动变色 [#1579](https://github.com/FooIbar/EhViewer/issues/1579)
-* 因闪退造成的无法挽回的下载失败 [#1602](https://github.com/FooIbar/EhViewer/issues/1602)
-* 某些情况下闪退 [#1548](https://github.com/FooIbar/EhViewer/issues/1548) [#1555](https://github.com/FooIbar/EhViewer/issues/1555) [#1568](https://github.com/FooIbar/EhViewer/issues/1568)
-* Android 7.0 及以下的设备无法加载图片 [#1633](https://github.com/FooIbar/EhViewer/issues/1633)
-* 某些情况下导入数据失败 [#1634](https://github.com/FooIbar/EhViewer/issues/1634)
-* 下载时创建重复文件夹 [#1619](https://github.com/FooIbar/EhViewer/issues/1619)
-* 滚动方向改变后预载图片不生效 [#1560](https://github.com/FooIbar/EhViewer/issues/1560)
-* 选择无效的下载位置后闪退
-* 杂项修复
-
-
-## [1.12.0] - 2024-08-19
-
-### 重大变更
-
-* Compose 阅读器已稳定，移除了旧阅读器实现 [#847](https://github.com/FooIbar/EhViewer/issues/847)
-* 由于 E 站缩略图服务器变更，移除了强制使用 e-hentai 缩略图服务器的选项
-
-### 改进
-
-* 更新高级搜索选项中页数过滤器的范围限制以遵循 E 站变更
-
-### Bug 修复
-
-* 评论页面刷新指示器边距不正确 [#1428](https://github.com/FooIbar/EhViewer/issues/1428)
-* 关闭打开失败的压缩包时崩溃
-* 无法打开带密码的压缩包 [#1454](https://github.com/FooIbar/EhViewer/issues/1454)
-* 使用音量键翻页时无法关闭过渡动画 [#1467](https://github.com/FooIbar/EhViewer/issues/1467)
-* 带有图片的评论显示错位 [#1468](https://github.com/FooIbar/EhViewer/issues/1468)
-* 在包含相同项目的页面间切换时崩溃 [#1490](https://github.com/FooIbar/EhViewer/issues/1490)
-* 无法检查更新 [#1512](https://github.com/FooIbar/EhViewer/issues/1512)
-* 画廊详情未加载完成时退出阅读器导致崩溃 [#1507](https://github.com/FooIbar/EhViewer/issues/1507)
-* 无法为带有临时标签的画廊生成 ComicInfo.xml [#1509](https://github.com/FooIbar/EhViewer/issues/1509)
-* 已下载的画廊翻页时出现加载动画 [#1510](https://github.com/FooIbar/EhViewer/issues/1510)
-* 画廊详情页面的缩略图无法加载 [#1529](https://github.com/FooIbar/EhViewer/issues/1529)
-* 图片未加载完成时无法通过点击翻页
-* 搜索结果为空时解析失败 [#1418](https://github.com/FooIbar/EhViewer/issues/1418)
-* 缩略图分辨率设置不起作用
-
-
-## [1.11.7] - 2024-07-10
-
-### Bug 修复
-
-* 无法下载标题包含 # 或 % 的画廊
-* 下载页数较多的画廊时应用无响应
-* 退出搜索栏时文本闪烁
-
-
-## [1.11.6] - 2024-07-09 [YANKED]
-
-### 改进
-
-* 某些设备上无法加载长图时可尝试减小 设置-高级 中的硬件位图阈值 [#1321](https://github.com/FooIbar/EhViewer/issues/1321)
-* 清理下载冗余时显示确认对话框 [#1369](https://github.com/FooIbar/EhViewer/issues/1369)
-* 修改收藏时显示收藏备注 [#1392](https://github.com/FooIbar/EhViewer/issues/1392)
-
-### Bug 修复
-
-* 图片完整性校验误报 [#1286](https://github.com/FooIbar/EhViewer/issues/1286)
-* 某些情况下应用崩溃 [#1290](https://github.com/FooIbar/EhViewer/issues/1290) [#1302](https://github.com/FooIbar/EhViewer/issues/1302)
-* 某些情况下渲染问题 [#1284](https://github.com/FooIbar/EhViewer/issues/1284)
-* 无法下载标题过长的画廊 [#1340](https://github.com/FooIbar/EhViewer/issues/1340)
-* 某些界面拖动滚动条时黑屏 [#1329](https://github.com/FooIbar/EhViewer/issues/1329)
-* 搜索栏多行文本遮挡其他内容 [#1365](https://github.com/FooIbar/EhViewer/issues/1365)
-* CIFS Documents Provider 兼容问题 [#1356](https://github.com/FooIbar/EhViewer/issues/1356)
-* 清理下载冗余未按预期运行 [#1369](https://github.com/FooIbar/EhViewer/issues/1369)
-* 读取压缩包失败时崩溃
-* 某些设备上崩溃 [#1276](https://github.com/FooIbar/EhViewer/issues/1276)
-* 检查更新失效
-
-
-## [1.11.6-RC2] - 2024-06-06
-
-### 改进
-
-* 下载图片时执行完整性校验以防止文件损坏/被篡改
-
-
-## [1.11.6-RC1] - 2024-06-02
-
-### 改进
-
-* 下载列表默认显示全部下载项目
-* 替换搜索文本中的换行符为空格 [#1258](https://github.com/FooIbar/EhViewer/issues/1258)
-
-### Bug 修复
-
-* 评价画廊时未使用输入的评分
-* 搜索时意外选择 Non-H 类别 [#1246](https://github.com/FooIbar/EhViewer/issues/1246)
-* 侧边栏与导航抽屉重叠 [#1262](https://github.com/FooIbar/EhViewer/issues/1262)
-* 快速搜索/下载标签排序失效 [#1267](https://github.com/FooIbar/EhViewer/issues/1267)
-* 加载压缩包/种子列表出错时 UI 冻结
-* 低版本 Android 上某些 UI 被遮挡
-
-
-## [1.11.5] - 2024-05-19
-
-### 重大变更
-
-* 不再支持 32 位 x86
-
-### 新功能
-
-* 支持按作者对下载分组
-* 由于 E 站不再强制要求人机验证，重新支持账号密码登录
-
-### 改进
-
-* 在登录时加载收藏名称 [#1077](https://github.com/FooIbar/EhViewer/issues/1077)
-* 优化归档和种子界面 UI
-* 禁止在 cookie 界面截图以防止泄露
-* 在缩略图模式下显示画廊页数
-* 记住最低评分和页数搜索参数
-* 更新 User-Agent 以缓解 IP 封禁 [#1182](https://github.com/FooIbar/EhViewer/issues/1182)
-* 账号密码登录支持自动填充
-* 更新中文（台灣）翻译
-
-### Bug 修复
-
-* 非触摸模式下无法退出搜索界面 [#1060](https://github.com/FooIbar/EhViewer/issues/1060)
-* 某些设备上无法安装更新 [#1067](https://github.com/FooIbar/EhViewer/issues/1067)
-* 某些设备上崩溃/卡顿 [#996](https://github.com/FooIbar/EhViewer/issues/996) [#1023](https://github.com/FooIbar/EhViewer/issues/1023)
-* 搜索记录中存在重复条目时崩溃 [#1130](https://github.com/FooIbar/EhViewer/issues/1130)
-* 条漫模式下缩小后点按区域偏移 [#127](https://github.com/FooIbar/EhViewer/issues/127)
-* 多窗口模式下点按区域偏移
-* 点击下载通知时未清除状态
-* 保存未完成加载的图片时崩溃 [#1154](https://github.com/FooIbar/EhViewer/issues/1154)
-* 历史记录界面无法在项目上滑动打开抽屉 [#464](https://github.com/FooIbar/EhViewer/issues/464)
-* 导入数据失败时显示导入成功 [#1174](https://github.com/FooIbar/EhViewer/issues/1174)
-* 某些条件下收藏界面崩溃 [#1190](https://github.com/FooIbar/EhViewer/issues/1190)
-* 反转点按区域功能失效 [#1217](https://github.com/FooIbar/EhViewer/issues/1217)
-
-### 已知问题
-
-* 某些设备上从后台返回时某些 UI 消失，可通过关闭列表项目动画部分缓解 [#1184](https://github.com/FooIbar/EhViewer/issues/1184)
-
-
-## [1.11.4] - 2024-04-21
-
-### 新功能
-
-* 更新前自动备份数据
-
-### 改进
-
-* 在 设置-高级 中加入了禁用列表项目动画的选项，该功能在部分设备上导致崩溃/卡顿 [#996](https://github.com/FooIbar/EhViewer/issues/996) [#1023](https://github.com/FooIbar/EhViewer/issues/1023)
-* 下载列表多选模式下避免误触 [#1016](https://github.com/FooIbar/EhViewer/issues/1016)
-* 杂项 UI 优化
-
-### Bug 修复
-
-* 重命名下载标签后删除该标签时崩溃 [#1008](https://github.com/FooIbar/EhViewer/issues/1008)
-* 搜索栏中某些输入法长按退格无法连续删除 [#606](https://github.com/FooIbar/EhViewer/issues/606)
-* 评论/屏蔽/搜索建议/下载标签/快速搜索列表卡顿 [#1041](https://github.com/FooIbar/EhViewer/issues/1041)
-
-
-## [1.11.3] - 2024-04-06
-
-### 改进
-
-* 优化预加载逻辑和图片加载顺序
-* 优化画廊详情和评论页面 UI
-
-### Bug 修复
-
-* 某些模式下搜索结果不显示画廊语言 [#923](https://github.com/FooIbar/EhViewer/issues/923)
-* 某些情况下在搜索结果中直接阅读画廊后崩溃 [#927](https://github.com/FooIbar/EhViewer/issues/927)
-* 更新至最新版本后仍提示有新版本 [#927](https://github.com/FooIbar/EhViewer/issues/927)
-* 从旧版本升级时包含不兼容数据导致崩溃/无法导出数据 [#940](https://github.com/FooIbar/EhViewer/issues/940) [#974](https://github.com/FooIbar/EhViewer/issues/974)
-* Android 10 以下的设备打开 设置-隐私 时崩溃 [#953](https://github.com/FooIbar/EhViewer/issues/953)
-* 下载标签无法拖动
-* 刷新 和 刷新（原图） 无法在已下载的图片上使用
-* 临时 IP 封禁错误显示为解析失败
-* 某些情况下下载时闪退 [#980](https://github.com/FooIbar/EhViewer/issues/980)
-* 某些设备上下载列表中的缩略图无法显示 [#977](https://github.com/FooIbar/EhViewer/issues/977)
-
-
-## [1.11.2] - 2024-03-17
-
-### 重大变更
-
-* Default 变种最低支持版本更改为 Android 8.0，重新添加了最低支持 Android 6.0 的 Marshmallow 变种
-
-### 改进
-
-* 重新添加了删除快速搜索/下载标签时的确认对话框
-
-### Bug 修复
-
-* 收藏页面 搜索栏中文标签转英文异常 [#902](https://github.com/FooIbar/EhViewer/issues/902)
-* 在收藏或者取消收藏之后，收藏按钮会无反应 [#908](https://github.com/FooIbar/EhViewer/issues/908)
-* 横屏页面下阅读设置UI重合 [#909](https://github.com/FooIbar/EhViewer/issues/909)
-* Search bar does not work properly in Japanese [#906](https://github.com/FooIbar/EhViewer/issues/906)
-* 搜索结果中的 Disowned 画廊不显示上传者
-* 使用 CI 频道更新时，有时会获取到错误的更新链接
-
-
-## [1.11.1] - 2024-03-12
-
-### 重大变更
-
-* 由于 E 站强制要求人机验证，仅支持通过网页登录
-* 默认支持 Android 6，不再提供 Marshmallow 变种
-* 集成 Cronet 库，不再提供 GMS 变种
-
-### 改进
-
-* 支持在排序下载列表前按下载标签分组
-
-### Bug 修复
-
-* 下载画廊时崩溃 [#893](https://github.com/FooIbar/EhViewer/issues/893)
-
-
-## [1.11.0] - 2024-03-09
-
-### 重大变更
-
-* 由于 E 站 Cookie 策略变更，不再支持 Cookie 登录
-* 登录时自动选择 exhentai （如果可用）
-* 不再提供默认下载路径
-* 手动排序更改为以添加时间/上传时间/标题/下载标签/页数对下载列表排序
-* 由于数据库结构变更，此版本导出的数据将无法被旧版本导入
-
-### 新功能
-
-* 下载画廊时生成 ComicInfo.xml 格式元数据
-* 归档下载时生成 ComicInfo.xml 格式元数据 [#711](https://github.com/FooIbar/EhViewer/issues/711)
-* 归档下载支持第三方下载管理器 [#79](https://github.com/FooIbar/EhViewer/issues/79)
-* 保存下载结果为 CBZ 压缩包 [#660](https://github.com/FooIbar/EhViewer/issues/660)
-* 清除 `igneous` Cookie （将于下次搜索时重新获取）
-* 随机打开本地收藏/下载中的画廊 [#695](https://github.com/FooIbar/EhViewer/issues/695)
-* 随机在搜索结果中跳转
-* 以网格模式查看下载列表
-* 本地收藏/历史/下载中的标签搜索 [#860](https://github.com/FooIbar/EhViewer/issues/860)
-
-### 改进
-
-* 搜索时优先显示已选择的类别卡片
-* 多处性能优化
-
-### Bug 修复
-
-* 显示模式为 Thumbnail 时无法点击上传者卡片 [#653](https://github.com/FooIbar/EhViewer/issues/653)
-* [Marshmallow] GIF 只显示第一帧
-* 无法在 `定时请求新闻页面` 关闭时开启 `隐藏 HV 事件通知`
-* 响应正文含有无效 UTF-8 字符导致解码失败 [#643](https://github.com/FooIbar/EhViewer/issues/643)
-* 某些情况下应用崩溃 [#710](https://github.com/FooIbar/EhViewer/issues/710)
-* 画廊名称包含非法路径字符时无法保存图片 [#815](https://github.com/FooIbar/EhViewer/issues/815)
-* 无法解码超长图片 [#732](https://github.com/FooIbar/EhViewer/issues/732)
-* E 站变更导致种子解析失败 [#880](https://github.com/FooIbar/EhViewer/issues/880)
-* E 站不再支持相似扫描导致图片搜索无法使用
-* 杂项修复
-
-### 已知问题
-
-* Android 14 上使用手势导航返回时过渡动画过早结束 [#775](https://github.com/FooIbar/EhViewer/issues/775)
-
-
-## [1.10.3] - 2024-01-15
-
-### 新功能
-
-* [Marshmallow] 支持裁剪边缘、打开压缩包和 GIF
-
-### 改进
-
-* 由于部分设备上的非预期行为 [#578](https://github.com/FooIbar/EhViewer/issues/578) [#596](https://github.com/FooIbar/EhViewer/issues/596)，默认禁用预见式返回导航动画，可于 设置-高级 中开启
-* 杂项优化
-
-### Bug 修复
-
-* 刷新后页面无响应 [#579](https://github.com/FooIbar/EhViewer/issues/579)
-* 浏览中保存图片后点击操作被阻挡 [#581](https://github.com/FooIbar/EhViewer/issues/581)
-* 在画廊详情页面切换至后台后点击评论闪退 [#580](https://github.com/FooIbar/EhViewer/issues/580)
-* 已下载的画廊中未阅读缓存过的图片解码失败 [#592](https://github.com/FooIbar/EhViewer/issues/592)
-* 在收藏页多选并下载会使得下载状态出现问题 [#603](https://github.com/FooIbar/EhViewer/issues/603)
-* 未能在不重启情况下切换 Http 引擎 [#610](https://github.com/FooIbar/EhViewer/issues/610)
-* 在有进度的画廊阅读界面无法直接回到第一页 [#614](https://github.com/FooIbar/EhViewer/issues/614)
-* 请求新闻界面失效 [#605](https://github.com/FooIbar/EhViewer/issues/605)
-* 收藏夹为空解析失败 [#630](https://github.com/FooIbar/EhViewer/issues/630)
-
-
-## [1.10.2] - 2023-12-31
-
-### 新功能
-
-* [阅读器] 支持裁剪图片黑色/白色边缘
-
-### 改进
-
-* 切换 HTTP 引擎无需重启
-* 优化过渡动画
-* 杂项性能优化
-
-### Bug 修复
-
-* 修复搜索建议中出现关键词相同的条目时崩溃 [#533](https://github.com/FooIbar/EhViewer/issues/533) [#555](https://github.com/FooIbar/EhViewer/issues/555)
-* 修复重命名下载标签时不显示原标签 [#534](https://github.com/FooIbar/EhViewer/issues/534)
-* 修复调整下载项目顺序时卡顿 [#552](https://github.com/FooIbar/EhViewer/issues/552)
-* 修复新增或修改评论后黑屏 [#554](https://github.com/FooIbar/EhViewer/issues/554)
-* 修复剪贴板读取bug [#566](https://github.com/FooIbar/EhViewer/issues/566)
-* 修复画廊信息对话框无法通过返回按钮/手势关闭 [#413](https://github.com/FooIbar/EhViewer/issues/413)
-
-
-## [1.10.1] - 2023-12-19
-
-### 重大变更
-
-* 由于 Apache HttpClient 5 在 Android 10 以下无法使用，后备 HTTP 引擎恢复为 OkHttp [#514](https://github.com/FooIbar/EhViewer/issues/514)
-
-### Bug 修复
-
-* 修复获取 pToken 失败导致无限加载 [#508](https://github.com/FooIbar/EhViewer/issues/508)
-* 修复阅读页快速滑动滑块导致下载延时过多累计 [#512](https://github.com/FooIbar/EhViewer/issues/512)
-* 修复 Android 9 以下的设备上无法退出搜索栏 [#513](https://github.com/FooIbar/EhViewer/issues/513)
-
-
-## [1.10.0] - 2023-12-14 [YANKED]
-
-### 重大变更
-
-* 后备 HTTP 引擎变更为 Apache HttpClient 5
-* 类别和高级搜索选项移至搜索栏下方
-
-### 新功能
-
-* 支持在搜索时指定画廊语言
-
-### 改进
-
-* 在下载中阅读画廊时会更新历史记录
-* 多处性能改进
-
-### Bug 修复
-
-* 修复无法由外部应用进入画廊页面 [#436](https://github.com/FooIbar/EhViewer/issues/436)
-* 修复点击精确到页的画廊链接闪退 [#430](https://github.com/FooIbar/EhViewer/issues/430)
-* 修复无法搜索本地收藏 [#491](https://github.com/FooIbar/EhViewer/issues/491)
-* 修复 CI 版本不显示变更日志
-
-
-## [1.9.0] - 2023-12-01
-
-### 重大变更
-
-* 除阅读器外全部迁移至 Compose
-
-### 新功能
-
-* 设置-高级 中增加实验性滑动手势敏感度设置
-* 支持通过滑动手势打开右侧抽屉
-* 支持预见式返回动画，相关设置位于 设置-高级
-
-### 改进
-
-* [阅读器] 画廊页数过多时隐藏进度条刻度并禁用触感反馈
-* 优化原图下载重试策略
-* 优化小屏设备上的搜索类别布局
-* 优化过渡动画
-* 优化历史记录删除动画
-* 设置-EH 中的缩略图大小设置改为缩略图列数
-
-### Bug 修复
-
-* 修复点击通知栏的下载通知闪退 [#175](https://github.com/FooIbar/EhViewer/issues/175)
-* 修复收藏状态显示错误 [#189](https://github.com/FooIbar/EhViewer/issues/189)
-* 修复双击导航按钮后无法打开导航抽屉
-* 修复某些情况下闪退 [#142](https://github.com/FooIbar/EhViewer/issues/142) [#208](https://github.com/FooIbar/EhViewer/issues/208)
-* 修复收藏界面点击重试崩溃 [#193](https://github.com/FooIbar/EhViewer/issues/193)
-* 修复本地收藏滚动位置丢失 [#192](https://github.com/FooIbar/EhViewer/issues/192)
-* 修复手速过快页面切换过快使加载圈圈不自动消失 [#209](https://github.com/FooIbar/EhViewer/issues/209)
-* 修复打开并关闭右侧抽屉后，状态栏一片白色 [#101](https://github.com/FooIbar/EhViewer/issues/101)
-* 修复使用深色主题时，切换界面会闪过亮色界面 [#121](https://github.com/FooIbar/EhViewer/issues/121)
-* [Marshmallow] 修复小内存设备上图片解码失败 [#229](https://github.com/FooIbar/EhViewer/issues/229) [#372](https://github.com/FooIbar/EhViewer/issues/372)
-* 修复已舍弃画廊上传者解析
-
-### 已知问题
-
-* 画廊信息对话框无法通过返回关闭 [#413](https://github.com/FooIbar/EhViewer/issues/413)

README.md

@@ -1,32 +1,100 @@
+<p align="right">
+  <strong>English</strong>
+  <span> | </span>
+  <a href="https://github.com/Ehviewer-Overhauled/Ehviewer/blob/1.8.x.x/docs/README/zh-cn.md">
+  简体中文
+  </a>
+  <span> | </span>
+  <a href="https://github.com/Ehviewer-Overhauled/Ehviewer/blob/1.8.x.x/docs/README/zh-tw.md">
+  正體中文
+  </a>
+</p>
+
 <h1 align="center">
-  <img src="https://github.com/FooIbar/EhViewer-art/blob/master/launcher_icon-web.svg" width="200" alt="EhViewer">
+  <img src="https://github.com/Ehviewer-Overhauled/Art/blob/master/launcher_icon-web.svg" width="200">
   <br>EhViewer<br>
 </h1>
 
 <p align="center">
-  Standalone fork of
-  <a href="https://codeberg.org/EhViewer/EhViewer">EhViewer (codeberg)</a>
-  maintained at <a href="https://gitea.yrkaierx.com/yenru0/EhViewer">gitea.yrkaierx.com/yenru0/EhViewer</a>
+  <a href="https://github.com/Ehviewer-Overhauled/Ehviewer/actions/workflows/ci.yml">
+    <img src="https://github.com/Ehviewer-Overhauled/Ehviewer/actions/workflows/ci.yml/badge.svg" alt="Github Actions">
+  </a>
+  <a href="https://github.com/Ehviewer-Overhauled/Ehviewer/blob/1.8.x.x/LICENSE">
+    <img src="https://img.shields.io/github/license/Ehviewer-Overhauled/Ehviewer" alt="LICENSE">
+  </a>
+  <a href="https://www.codefactor.io/repository/github/Ehviewer-Overhauled/ehviewer">
+    <img src="https://www.codefactor.io/repository/github/Ehviewer-Overhauled/ehviewer/badge" alt="CodeFactor">
+  </a>
+  <a href="https://github.com/Ehviewer-Overhauled/Ehviewer/releases">
+    <img src="https://img.shields.io/github/v/release/Ehviewer-Overhauled/ehviewer?include_prereleases" alt="Release">
+  </a>
+  <a href="https://github.com/Ehviewer-Overhauled/Ehviewer/issues">
+    <img src="https://img.shields.io/github/issues/Ehviewer-Overhauled/ehviewer" alt="Issues">
+  </a>
 </p>
 
-# Changes over upstream
+<div align="center">
+  <h3>
+    <a href="https://github.com/Ehviewer-Overhauled/Ehviewer#description">
+    Description
+    </a>
+    <span> | </span>
+    <a href="https://github.com/Ehviewer-Overhauled/Ehviewer#download">
+    Download
+    </a>
+    <span> | </span>
+    <a href="https://github.com/Ehviewer-Overhauled/Ehviewer#screenshot">
+    Screenshot
+    </a>
+    <span> | </span>
+    <a href="https://github.com/Ehviewer-Overhauled/Ehviewer#thanks">
+    Thanks
+    </a>
+    <span> | </span>
+    <a href="https://github.com/Ehviewer-Overhauled/Ehviewer#license">
+    License
+    </a>
+  </h3>
+</div>
 
-- Built-in hosts, Cloudflare CDN fallback and domain fronting with SNI spoofing for censored networks (`EhHostsConfig.kt`, `EhDns.kt`, `EhSSLSocketFactory.kt`)
-- Cronet engine disabled by default (bypasses the anti-DPI OkHttp stack; `enable_quic` re-enables it)
-- Update check disabled by default (manual check still available)
-- API request timeout raised to 30 s
-- Own application id (`yenru0.yrkaierx.ehviewer`), installs side by side with upstream builds
 
-# Upstream
+# Description
+
+EhViewer fork dedicated to lightweight and high-performance
+
+with Material Design 3 and Dynamic Color Support
+
+# Download
+
+<a href="https://github.com/Ehviewer-Overhauled/Ehviewer/releases"><img alt="Get it on GitHub" src="https://github.com/Ehviewer-Overhauled/Art/blob/master/get-it-on-github.svg" width="200px"/></a> <a href="https://github.com/Ehviewer-Overhauled/fdroid-repo"><img alt="Get it on F-Droid" src="https://github.com/Ehviewer-Overhauled/Art/blob/master/get-it-on-fdroid.svg" width="200px"/></a>
+
+# Screenshot
+
+![screenshot-01](https://github.com/Ehviewer-Overhauled/Art/blob/master/screenshot-01.png)
+![screenshot-02](https://github.com/Ehviewer-Overhauled/Art/blob/master/screenshot-02.png)
+
+# Thanks
+
+Here is the libraries
+
+- [AOSP & AndroidX](http://source.android.com/)
+- [Coil](https://coil-kt.github.io/coil/)
+- [FullDraggableDrawer](https://github.com/PureWriter/FullDraggableDrawer)
+- [GnuTLS](https://gnutls.org/)
+- [material-components-android](https://github.com/material-components/material-components-android)
+- [material-design-icons](https://github.com/google/material-design-icons)
+- [jsoup](https://github.com/jhy/jsoup)
+- [okhttp](https://github.com/square/okhttp)
+- [RikkaX](https://github.com/RikkaApps/RikkaX)
+- [libarchive](http://www.libarchive.org/)
+- [XZ Utils](https://tukaani.org/xz/)
 
-Synced from [EhViewer/EhViewer on codeberg](https://codeberg.org/EhViewer/EhViewer), the continuation of FooIbar's EhViewer. Feature work happens there; this fork tracks it and carries the network/resilience patches above.
 
 # License
 
     Copyright 2014-2019 Hippo Seven
     Copyright 2020-2022 NekoInverter
     Copyright 2022-2023 Tarsin Norbin
-    Copyright 2023-2024 Foolbar
 
     EhViewer is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
 

app/.gitignore

@@ -0,0 +1,8 @@
+/build
+/src/main/java-gen
+manifest-merger-release-report.txt
+/src/main/libs
+/src/main/obj
+# Intellij
+*.iml
+/.cxx

app/build.gradle.kts

@@ -1,32 +1,27 @@
-import com.mikepenz.aboutlibraries.plugin.DuplicateMode
-import com.mikepenz.aboutlibraries.plugin.DuplicateRule
-import java.util.regex.Pattern
-
-val isRelease: Boolean
-    get() = gradle.startParameter.taskNames.any { it.contains("Release") }
+import java.io.ByteArrayOutputStream
+import java.time.Instant
+import java.time.ZoneOffset
+import java.time.format.DateTimeFormatter
 
 plugins {
-    alias(libs.plugins.ehviewer.android.application)
-    alias(libs.plugins.kotlin.serialization)
-    alias(libs.plugins.ksp)
-    alias(libs.plugins.aboutlibraries)
-    alias(libs.plugins.aboutlibrariesAndroid)
-    alias(libs.plugins.baselineprofile)
+    id("com.android.application")
+    kotlin("android")
+    id("kotlin-parcelize")
+    kotlin("plugin.serialization")
+    id("com.google.devtools.ksp")
 }
 
-val supportedAbis = arrayOf("arm64-v8a", "x86_64", "armeabi-v7a")
-
 android {
+    compileSdk = 33
+    buildToolsVersion = "33.0.2"
+    ndkVersion = "25.2.9519653"
+
     splits {
         abi {
             isEnable = true
             reset()
-            if (isRelease) {
-                include(*supportedAbis)
-                isUniversalApk = true
-            } else {
-                include("arm64-v8a", "x86_64")
-            }
+            include("arm64-v8a", "x86_64", "armeabi-v7a", "x86")
+            isUniversalApk = true
         }
     }
 
@@ -35,55 +30,49 @@ android {
         storePassword = "000000"
         keyAlias = "key0"
         keyPassword = "000000"
+
         enableV3Signing = true
         enableV4Signing = true
     }
 
-    val commitSha = providers.exec {
-        commandLine = "git rev-parse --short=7 HEAD".split(' ')
-    }.standardOutput.asText.get().trim()
-
-    val commitTime = providers.exec {
-        commandLine = "git log -1 --format=%ct".split(' ')
-    }.standardOutput.asText.get().trim()
-
-    val repoName = providers.exec {
-        commandLine = "git remote get-url origin".split(' ')
-    }.standardOutput.asText.get().trim().removeSuffix(".git").removePrefix("https://codeberg.org/")
-
-    val snapshot = !hasProperty("release")
-
-    defaultConfig {
-        applicationId = "yenru0.yrkaierx.ehviewer"
-        versionCode = 180064
-        versionName = if (snapshot) {
-            "1.15.0-SNAPSHOT"
-        } else {
-            "1.15.0"
-        }
-        buildConfigField("boolean", "SNAPSHOT", "$snapshot")
-        buildConfigField("String", "RAW_VERSION_NAME", "\"$versionName\"")
-        buildConfigField("String", "COMMIT_SHA", "\"$commitSha\"")
-        buildConfigField("long", "COMMIT_TIME", commitTime)
-        buildConfigField("String", "REPO_NAME", "\"$repoName\"")
-        ndk {
-            if (isRelease) {
-                abiFilters.addAll(supportedAbis)
-            }
-            debugSymbolLevel = "FULL"
+    val commitSha by lazy {
+        val stdout = ByteArrayOutputStream()
+        exec {
+            commandLine = "git rev-parse --short=7 HEAD".split(' ')
+            standardOutput = stdout
         }
+        stdout.toString().trim()
     }
 
-    flavorDimensions += "api"
+    val buildTime by lazy {
+        val formatter = DateTimeFormatter.ofPattern("yyyy/MM/dd HH:mm").withZone(ZoneOffset.UTC)
+        formatter.format(Instant.now())
+    }
 
-    productFlavors {
-        create("default") {
-            minSdk = 26
-        }
-        create("marshmallow") {
-            applicationIdSuffix = ".m"
-            versionNameSuffix = "-M"
-        }
+    defaultConfig {
+        applicationId = "moe.tarsin.ehviewer"
+        minSdk = 28
+        targetSdk = 33
+        versionCode = 180036
+        versionName = "1.8.7.1"
+        resourceConfigurations.addAll(
+            listOf(
+                "zh",
+                "zh-rCN",
+                "zh-rHK",
+                "zh-rTW",
+                "es",
+                "ja",
+                "ko",
+                "fr",
+                "de",
+                "th",
+                "tr",
+                "nb-rNO"
+            )
+        )
+        buildConfigField("String", "COMMIT_SHA", "\"$commitSha\"")
+        buildConfigField("String", "BUILD_TIME", "\"$buildTime\"")
     }
 
     externalNativeBuild {
@@ -93,51 +82,46 @@ android {
     }
 
     compileOptions {
-        isCoreLibraryDesugaringEnabled = true
+        sourceCompatibility = JavaVersion.VERSION_19
+        targetCompatibility = JavaVersion.VERSION_19
+    }
+
+    kotlinOptions {
+        jvmTarget = "19"
+        freeCompilerArgs = listOf(
+            // https://kotlinlang.org/docs/compiler-reference.html#progressive
+            "-progressive",
+
+            "-opt-in=coil.annotation.ExperimentalCoilApi",
+            "-opt-in=androidx.compose.foundation.layout.ExperimentalLayoutApi",
+            "-opt-in=androidx.compose.material3.ExperimentalMaterial3Api",
+            "-opt-in=androidx.compose.ui.ExperimentalComposeUiApi",
+            "-opt-in=androidx.compose.foundation.ExperimentalFoundationApi",
+            "-opt-in=androidx.compose.animation.ExperimentalAnimationApi",
+            "-opt-in=kotlin.contracts.ExperimentalContracts",
+            "-opt-in=kotlinx.coroutines.ExperimentalCoroutinesApi",
+            "-opt-in=kotlinx.coroutines.FlowPreview",
+            "-opt-in=kotlinx.coroutines.InternalCoroutinesApi",
+            "-opt-in=kotlinx.serialization.ExperimentalSerializationApi",
+        )
+    }
+
+    lint {
+        abortOnError = true
+        checkReleaseBuilds = false
+        disable.add("MissingTranslation")
     }
 
     packaging {
-        dex {
-            useLegacyPackaging = false
-        }
-        jniLibs {
-            excludes += "**/libdatastore_shared_counter.so" // DataStore multi-process
-        }
         resources {
-            // Required by Layout Inspector
-            pickFirsts += "/META-INF/androidx.compose.ui_ui.version"
-
-            excludes += listOf(
-                "/META-INF/**",
-                "/kotlin/**",
-                "**.txt",
-                "**.bin",
-            )
+            excludes += "/META-INF/CHANGES"
+            excludes += "/META-INF/README.md"
+            excludes += "/kotlin/**"
+            excludes += "**.txt"
+            excludes += "**.bin"
         }
     }
 
-    androidResources {
-        ignoreAssetsPatterns += listOf(
-            "!PublicSuffixDatabase.list", // OkHttp
-            "!composepreference.preference.generated.resources",
-        )
-        generateLocaleConfig = true
-        localeFilters += listOf(
-            "zh",
-            "zh-rCN",
-            "zh-rHK",
-            "zh-rTW",
-            "es",
-            "ja",
-            "ko",
-            "fr",
-            "de",
-            "th",
-            "tr",
-            "nb-rNO",
-        )
-    }
-
     dependenciesInfo.includeInApk = false
 
     buildTypes {
@@ -150,127 +134,91 @@ android {
         debug {
             applicationIdSuffix = ".debug"
         }
-        create("benchmarkRelease") {
-            initWith(buildTypes.getByName("release"))
-            matchingFallbacks += listOf("release")
-            applicationIdSuffix = ".benchmark"
-            signingConfig = signingConfigs.getByName("debug")
-            isDebuggable = false
-        }
     }
 
     buildFeatures {
         buildConfig = true
         compose = true
+        viewBinding = true
+    }
+
+    composeOptions {
+        kotlinCompilerExtensionVersion = "1.4.3"
     }
 
     namespace = "com.hippo.ehviewer"
 }
 
-baselineProfile {
-    mergeIntoMain = true
-}
-
 dependencies {
-    implementation(projects.core.data)
-    implementation(projects.core.i18n)
-    implementation(projects.core.ui)
-
     // https://developer.android.com/jetpack/androidx/releases/activity
-    implementation(libs.androidx.activity.compose)
-    implementation(libs.androidx.appcompat)
-    implementation(libs.androidx.biometric)
-    implementation(libs.androidx.browser)
-    implementation(libs.androidx.webkit)
+    implementation("androidx.activity:activity-compose:1.6.1")
+    implementation("androidx.appcompat:appcompat:1.6.1")
+    implementation("androidx.biometric:biometric-ktx:1.2.0-alpha05")
+    implementation("androidx.browser:browser:1.5.0")
+    implementation("androidx.collection:collection-ktx:1.3.0-alpha02")
 
-    implementation(libs.compose.destinations.core)
-    ksp(libs.compose.destinations.compiler)
+    // https://developer.android.com/jetpack/androidx/releases/compose-material3
+    implementation(platform("androidx.compose:compose-bom:2023.01.00"))
+    implementation("androidx.compose.material:material-icons-extended")
+    implementation("androidx.compose.material3:material3")
 
-    implementation(libs.compose.preference) {
-        // R8 won't remove it because it adds a content provider
-        exclude(group = "org.jetbrains.compose.components", module = "components-resources")
-    }
-
-    implementation(libs.androidx.core)
-    implementation(libs.androidx.core.splashscreen)
-
-    implementation(libs.androidx.datastore)
+    implementation("androidx.core:core-ktx:1.10.0-beta01")
 
+    implementation("androidx.constraintlayout:constraintlayout:2.2.0-alpha07")
+    implementation("androidx.coordinatorlayout:coordinatorlayout:1.2.0")
     // https://developer.android.com/jetpack/androidx/releases/lifecycle
-    implementation(libs.androidx.lifecycle.process)
-    implementation(libs.androidx.lifecycle.compose)
+    implementation("androidx.lifecycle:lifecycle-process:2.5.1")
+
+    // https://developer.android.com/jetpack/androidx/releases/navigation
+    val nav_version = "2.5.3"
+    implementation("androidx.navigation:navigation-fragment-ktx:$nav_version")
+    implementation("androidx.navigation:navigation-ui-ktx:$nav_version")
+    implementation("androidx.navigation:navigation-compose:$nav_version")
 
     // https://developer.android.com/jetpack/androidx/releases/paging
-    implementation(libs.androidx.paging.compose)
+    implementation("androidx.paging:paging-runtime-ktx:3.2.0-alpha04")
+    implementation("androidx.paging:paging-compose:1.0.0-alpha18")
+    implementation("androidx.preference:preference-ktx:1.2.0")
+    implementation("androidx.recyclerview:recyclerview:1.3.0-rc01")
 
     // https://developer.android.com/jetpack/androidx/releases/room
-    implementation(libs.androidx.room.paging)
+    val room_version = "2.5.0"
+    ksp("androidx.room:room-compiler:$room_version")
+    implementation("androidx.room:room-paging:$room_version")
 
-    implementation(libs.androidx.work.runtime)
-    implementation(libs.material.motion.core)
-    implementation(libs.material.kolor)
-
-    implementation(libs.bundles.splitties)
+    implementation("androidx.swiperefreshlayout:swiperefreshlayout:1.2.0-alpha01")
+    implementation("androidx.work:work-runtime-ktx:2.8.0")
+    implementation("com.drakeet.drawer:drawer:1.0.3")
+    implementation("com.github.chrisbanes:PhotoView:2.3.0") // Dead Dependency
+    implementation("com.github.tachiyomiorg:DirectionalViewPager:1.0.0") // Dead Dependency
+    // https://github.com/google/accompanist/releases
+    implementation("com.google.accompanist:accompanist-themeadapter-material3:0.28.0")
+    implementation("com.google.android.material:material:1.8.0")
 
     // https://square.github.io/okhttp/changelogs/changelog/
-    implementation(platform(libs.okhttp.bom))
+    implementation("com.squareup.okhttp3:okhttp-bom:5.0.0-alpha.11")
+    implementation("com.squareup.okhttp3:okhttp-coroutines")
 
-    implementation(libs.logcat)
-
-    implementation(libs.diff)
-
-    implementation(libs.aboutlibraries.core)
-    implementation(libs.aboutlibraries.compose.m3)
-    implementation(libs.accompanist.drawable.painter)
-
-    implementation(libs.reorderable)
-
-    implementation(platform(libs.arrow.stack))
-    implementation(libs.bundles.arrow)
+    implementation("com.squareup.okio:okio-jvm:3.3.0")
 
+    implementation("dev.chrisbanes.insetter:insetter:0.6.1") // Dead Dependency
+    implementation("dev.rikka.rikkax.core:core-ktx:1.4.1")
+    implementation("dev.rikka.rikkax.insets:insets:1.3.0")
+    implementation("dev.rikka.rikkax.layoutinflater:layoutinflater:1.2.0")
+    implementation("dev.rikka.rikkax.preference:simplemenu-preference:1.0.3")
+    implementation("dev.rikka.rikkax.material:material-preference:2.0.0")
     // https://coil-kt.github.io/coil/changelog/
-    implementation(platform(libs.coil.bom))
-    implementation(libs.bundles.coil)
+    implementation("io.coil-kt:coil-compose:2.2.2")
 
-    implementation(libs.telephoto.zoomable)
-
-    implementation(libs.ktor.client.okhttp)
-
-    implementation(libs.bundles.kotlinx.serialization)
-
-    implementation(libs.kotlinx.coroutines.android)
-    implementation(libs.kotlinx.datetime)
-
-    coreLibraryDesugaring(libs.desugar)
-
-    implementation(libs.androidx.profileinstaller)
-    "baselineProfile"(project(":benchmark"))
-
-    debugImplementation(libs.compose.ui.tooling)
-    implementation(libs.compose.ui.tooling.preview)
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-android:1.6.4")
+    implementation("org.jetbrains.kotlinx:kotlinx-serialization-cbor:1.5.0")
+    implementation("org.jsoup:jsoup:1.15.4")
 }
 
-kotlin {
-    compilerOptions {
-        optIn.addAll(
-            "coil3.annotation.ExperimentalCoilApi",
-            "androidx.paging.ExperimentalPagingApi",
-            "me.saket.telephoto.ExperimentalTelephotoApi",
-        )
-    }
-}
-
-ksp {
-    arg("compose-destinations.codeGenPackageName", "com.hippo.ehviewer.ui")
-}
-
-aboutLibraries {
-    collect {
-        includePlatform = false
-    }
-    library {
-        exclusionPatterns.add(Pattern.compile("org\\.jetbrains\\.(?:compose|androidx)\\..*"))
-        duplicationMode = DuplicateMode.MERGE
-        duplicationRule = DuplicateRule.GROUP
-    }
+configurations.all {
+    exclude("dev.rikka.rikkax.appcompat", "appcompat")
+    exclude("dev.rikka.rikkax.material", "material")
+    exclude("org.jetbrains.kotlin", "kotlin-android-extensions-runtime")
+    exclude("org.jetbrains.kotlin", "kotlin-stdlib-jdk7")
+    exclude("org.jetbrains.kotlin", "kotlin-stdlib-jdk8")
 }

app/proguard-rules.pro

@@ -1,32 +1,24 @@
--keepclasseswithmembernames,includedescriptorclasses class * {
-    native <methods>;
-}
-
--keepclassmembers enum * {
-    public static **[] values();
-    public static ** valueOf(java.lang.String);
-}
-
 -keepclassmembers class * implements android.os.Parcelable {
     public static final ** CREATOR;
 }
 
--keepclassmembers,allowobfuscation class com.hippo.ehviewer.coil.AnimatedWebPDrawable {
-    java.nio.ByteBuffer source;
+-keepclasseswithmembernames,includedescriptorclasses class * {
+    native <methods>;
 }
 
--assumevalues public class androidx.compose.runtime.ComposeRuntimeFlags {
-    static boolean isLinkBufferComposerEnabled() return true;
+# https://issuetracker.google.com/issues/190382641
+-keepclassmembers class kotlin.SafePublicationLazyImpl {
+    java.lang.Object _value;
 }
 
+-keep class androidx.viewpager.widget.ViewPager$LayoutParams { int position; }
+
 # Ktor logger
 -dontwarn org.slf4j.impl.StaticLoggerBinder
 
-# https://issuetracker.google.com/222232895
--dontwarn androidx.window.extensions.**
--dontwarn androidx.window.sidecar.Sidecar*
+-keepattributes LineNumberTable,SourceFile
+-renamesourcefileattribute SourceFile
 
--keepattributes LineNumberTable
-
--allowaccessmodification
 -repackageclasses
+-allowaccessmodification
+-overloadaggressively

app/src/main/AndroidManifest.xml

@@ -12,8 +12,7 @@
     <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
-    <uses-permission android:name="android.permission.FOREGROUND_SERVICE_DATA_SYNC" />
-    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
     <uses-permission
         android:name="android.permission.WRITE_EXTERNAL_STORAGE"
         android:maxSdkVersion="28" />
@@ -28,21 +27,23 @@
         android:hasFragileUserData="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
-        android:largeHeap="@bool/large_heap"
+        android:localeConfig="@xml/locales_config"
         android:networkSecurityConfig="@xml/network_security_config"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme"
         tools:targetApi="tiramisu">
-        <profileable android:shell="true" />
-
+        <activity
+            android:name=".ui.login.LoginActivity"
+            android:exported="false"
+            android:launchMode="singleTask"
+            android:windowSoftInputMode="adjustResize"/>
         <activity
             android:name=".ui.MainActivity"
             android:banner="@mipmap/ic_leanback_banner"
-            android:configChanges="orientation|screenLayout|screenSize|smallestScreenSize"
+            android:configChanges="screenSize"
             android:exported="true"
             android:launchMode="singleTask"
-            android:theme="@style/AppTheme.Splash"
             android:windowSoftInputMode="adjustResize|stateAlwaysHidden">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
@@ -69,39 +70,8 @@
                 <data android:scheme="https" />
                 <data android:host="exhentai.org" />
                 <data android:host="e-hentai.org" />
-            </intent-filter>
-            <intent-filter>
-                <action android:name="android.intent.action.VIEW" />
-
-                <category android:name="android.intent.category.DEFAULT" />
-                <category android:name="android.intent.category.BROWSABLE" />
-
-                <data android:scheme="file" />
-                <data android:scheme="content" />
-                <data android:host="*" />
-                <data android:mimeType="application/octet-stream" />
-                <data android:mimeType="application/zip" />
-                <data android:mimeType="application/x-7z-compressed" />
-                <data android:mimeType="application/x-tar" />
-                <data android:mimeType="application/x-xz" />
-                <data android:mimeType="application/gzip" />
-                <data android:mimeType="application/vnd.rar" />
-                <data android:mimeType="application/vnd.comicbook+zip" />
-                <data android:mimeType="application/vnd.comicbook-rar" />
-
-                <!-- unofficial -->
-                <data android:mimeType="application/7z" />
-                <data android:mimeType="application/rar" />
-                <data android:mimeType="application/x-cbz" />
-                <data android:mimeType="application/x-cbr" />
-                <data android:mimeType="application/x-cbt" />
-                <data android:mimeType="application/x-cb7" />
-                <data android:mimeType="application/x-zip-compressed" />
-                <data android:mimeType="application/x-rar-compressed" />
-                <data android:mimeType="application/x-compressed-tar" />
-                <data android:mimeType="application/x-bzip-compressed-tar" />
-                <data android:mimeType="application/x-lzma-compressed-tar" />
-                <data android:mimeType="application/x-xz-compressed-tar" />
+                <data android:host="g.e-hentai.org" />
+                <data android:host="lofi.e-hentai.org" />
             </intent-filter>
             <intent-filter android:label="@string/keyword_search">
                 <action android:name="android.intent.action.SEND" />
@@ -118,6 +88,54 @@
                 <data android:mimeType="image/*" />
             </intent-filter>
         </activity>
+        <activity
+            android:name="eu.kanade.tachiyomi.ui.reader.ReaderActivity"
+            android:configChanges="screenSize"
+            android:exported="true"
+            android:launchMode="singleTask">
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+
+                <data android:scheme="file" />
+                <data android:scheme="content" />
+                <data android:host="*" />
+                <data android:mimeType="application/octet-stream" />
+                <data android:mimeType="application/7z" />
+                <data android:mimeType="application/rar" />
+                <data android:mimeType="application/zip" />
+                <data android:mimeType="application/x-7z-compressed" />
+                <data android:mimeType="application/x-rar-compressed" />
+                <data android:mimeType="application/x-zip-compressed" />
+                <data android:mimeType="application/x-tar" />
+                <data android:mimeType="application/x-xz" />
+                <data android:mimeType="application/gzip" />
+                <data android:mimeType="application/x-cbz" />
+                <data android:mimeType="application/x-cbr" />
+                <data android:mimeType="application/x-cbt" />
+                <data android:mimeType="application/x-cb7" />
+
+                <!-- untested -->
+                <data android:mimeType="application/vnd.comicbook+zip" />
+                <data android:mimeType="application/vnd.comicbook-rar" />
+                <data android:mimeType="application/x-compressed-tar" />
+                <data android:mimeType="application/x-bzip-compressed-tar" />
+                <data android:mimeType="application/x-lzma-compressed-tar" />
+                <data android:mimeType="application/x-xz-compressed-tar" />
+            </intent-filter>
+        </activity>
+        <activity
+            android:name=".ui.SettingsActivity"
+            android:configChanges="screenSize"
+            android:label="@string/settings"
+            android:theme="@style/AppTheme" />
+        <activity
+            android:name=".ui.SecurityActivity"
+            android:configChanges="screenSize"
+            android:label="@string/settings"
+            android:theme="@style/AppTheme" />
         <activity
             android:name=".shortcuts.ShortcutsActivity"
             android:excludeFromRecents="true"

app/src/main/cpp/0001-Don-t-build-other-binarys.patch

@@ -0,0 +1,34 @@
+From fc9fb0ea245259e346ab46c334f03b557fe63b6b Mon Sep 17 00:00:00 2001
+From: tarsin <yuanqingxiang233@163.com>
+Date: Tue, 22 Nov 2022 12:37:12 +0800
+Subject: [PATCH] Don't build other binarys
+
+---
+ CMakeLists.txt | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 01c73cd..b461e68 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -592,7 +592,7 @@ check_symbol_exists(getopt_long getopt.h HAVE_GETOPT_LONG)
+ # xzdec
+ #############################################################################
+ 
+-if(HAVE_GETOPT_LONG)
++if(0)
+     add_executable(xzdec
+         src/common/sysdefs.h
+         src/common/tuklib_common.h
+@@ -630,7 +630,7 @@ endif()
+ # xz
+ #############################################################################
+ 
+-if(NOT MSVC AND HAVE_GETOPT_LONG)
++if(0)
+     add_executable(xz
+         src/common/mythread.h
+         src/common/sysdefs.h
+-- 
+2.39.2
+

app/src/main/cpp/0001-Don-t-build-shared-lib.patch

@@ -0,0 +1,38 @@
+From 2a67861e6f06794f3671c4988bac12330d8422e3 Mon Sep 17 00:00:00 2001
+From: tarsin <yuanqingxiang233@163.com>
+Date: Fri, 27 May 2022 23:21:20 +0800
+Subject: [PATCH 1/2] Don't build shared lib
+
+---
+ libarchive/CMakeLists.txt | 8 +-------
+ 1 file changed, 1 insertion(+), 7 deletions(-)
+
+diff --git a/libarchive/CMakeLists.txt b/libarchive/CMakeLists.txt
+index ff7ade00..00c2e170 100644
+--- a/libarchive/CMakeLists.txt
++++ b/libarchive/CMakeLists.txt
+@@ -242,12 +242,6 @@ ELSEIF(ARCHIVE_ACL_SUNOS)
+   LIST(APPEND libarchive_SOURCES archive_disk_acl_sunos.c)
+ ENDIF()
+ 
+-# Libarchive is a shared library
+-ADD_LIBRARY(archive SHARED ${libarchive_SOURCES} ${include_HEADERS})
+-TARGET_INCLUDE_DIRECTORIES(archive PUBLIC .)
+-TARGET_LINK_LIBRARIES(archive ${ADDITIONAL_LIBS})
+-SET_TARGET_PROPERTIES(archive PROPERTIES SOVERSION ${SOVERSION})
+-
+ # archive_static is a static library
+ ADD_LIBRARY(archive_static STATIC ${libarchive_SOURCES} ${include_HEADERS})
+ TARGET_LINK_LIBRARIES(archive_static ${ADDITIONAL_LIBS})
+@@ -260,7 +254,7 @@ ENDIF(NOT WIN32 OR CYGWIN)
+ 
+ IF(ENABLE_INSTALL)
+   # How to install the libraries
+-  INSTALL(TARGETS archive archive_static
++  INSTALL(TARGETS archive_static
+           RUNTIME DESTINATION bin
+           LIBRARY DESTINATION lib
+           ARCHIVE DESTINATION lib)
+-- 
+2.39.2
+

app/src/main/cpp/0001-Fix-zip_time-performance.patch

@@ -1,25 +0,0 @@
-From e971b9f23727833cc39b9e325db30f383e5bfc30 Mon Sep 17 00:00:00 2001
-From: Dude so hot <djohn@fbi.gov>
-Date: Thu, 14 Nov 2024 00:28:13 +0800
-Subject: [PATCH] Fix zip_time performance
-
-Signed-off-by: Dude so hot <djohn@fbi.gov>
----
- libarchive/archive_time.c | 1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/libarchive/archive_time.c b/libarchive/archive_time.c
-index 3352c809..9289bf1e 100644
---- a/libarchive/archive_time.c
-+++ b/libarchive/archive_time.c
-@@ -53,6 +53,7 @@ FILETIME_to_ntfs(const FILETIME* filetime)
- int64_t
- dos_to_unix(uint32_t dos_time)
- {
-+	return 0;
- 	uint16_t msTime, msDate;
- 	struct tm ts;
- 	time_t t;
--- 
-2.47.0
-

app/src/main/cpp/0002-Insert-link-libs.patch

@@ -0,0 +1,25 @@
+From c9298fd6dc0a8b04dd4b2247118b9cb895c46e58 Mon Sep 17 00:00:00 2001
+From: tarsin <yuanqingxiang233@163.com>
+Date: Sat, 23 Jul 2022 16:05:36 +0800
+Subject: [PATCH 2/2] Insert link libs
+
+---
+ CMakeLists.txt | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 713e3bc5..7247640d 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -415,7 +415,7 @@ IF(DEFINED __GNUWIN32PATH AND EXISTS "${__GNUWIN32PATH}")
+   # #  endif
+ ENDIF(DEFINED __GNUWIN32PATH AND EXISTS "${__GNUWIN32PATH}")
+ 
+-SET(ADDITIONAL_LIBS "")
++SET(ADDITIONAL_LIBS ${LIBARCHIVE_CUSTOM_LIBS})
+ #
+ # Find ZLIB
+ #
+-- 
+2.39.2
+

app/src/main/cpp/0002-Use-UTF-8-as-default-charset-on-bionic.patch

@@ -1,27 +0,0 @@
-From 86d199429b3fabc83f7dcc9afd72e7b4c7750b1a Mon Sep 17 00:00:00 2001
-From: FooIbar <118464521+FooIbar@users.noreply.github.com>
-Date: Thu, 14 Nov 2024 20:22:52 +0800
-Subject: [PATCH] Use UTF-8 as default charset on bionic
-
----
- libarchive/archive_string.c | 4 +++-
- 1 file changed, 3 insertions(+), 1 deletion(-)
-
-diff --git a/libarchive/archive_string.c b/libarchive/archive_string.c
-index abf7ad66..63a73c58 100644
---- a/libarchive/archive_string.c
-+++ b/libarchive/archive_string.c
-@@ -423,7 +423,9 @@ static const char *
- default_iconv_charset(const char *charset) {
- 	if (charset != NULL && charset[0] != '\0')
- 		return charset;
--#if HAVE_LOCALE_CHARSET && !defined(__APPLE__)
-+#ifdef __BIONIC__
-+	return "UTF-8";
-+#elif HAVE_LOCALE_CHARSET && !defined(__APPLE__)
- 	/* locale_charset() is broken on Mac OS */
- 	return locale_charset();
- #elif HAVE_NL_LANGINFO
--- 
-2.43.0
-

app/src/main/cpp/CMakeLists.txt

@@ -1,79 +1,40 @@
 cmake_minimum_required(VERSION 3.14)
 project(ehviewer C)
-include(ExternalProject)
 include(FetchContent)
 
 if (NOT CMAKE_BUILD_TYPE STREQUAL "Debug")
-    string(CONCAT CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O3 -ffast-math -fvisibility=hidden -fvisibility-inlines-hidden -funroll-loops -flto "
-            "-ffile-prefix-map=${ANDROID_TOOLCHAIN_ROOT}= "
-            "-ffile-prefix-map=${CMAKE_SOURCE_DIR}= "
-            "-ffile-prefix-map=${CMAKE_BINARY_DIR}= "
-            "-mllvm -polly "
-            "-mllvm -polly-run-dce "
-            "-mllvm -polly-run-inliner "
-            "-mllvm -polly-isl-arg=--no-schedule-serialize-sccs "
-            "-mllvm -polly-ast-use-context "
-            "-mllvm -polly-detect-keep-going "
-            "-mllvm -polly-position=before-vectorizer "
-            "-mllvm -polly-vectorizer=stripmine "
-            "-mllvm -polly-detect-profitability-min-per-loop-insts=40 "
-            "-mllvm -polly-invariant-load-hoisting")
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Ofast -fvisibility=hidden -fvisibility-inlines-hidden -funroll-loops -flto=thin \
+           -mllvm -polly \
+           -mllvm -polly-run-dce \
+           -mllvm -polly-run-inliner \
+           -mllvm -polly-isl-arg=--no-schedule-serialize-sccs \
+           -mllvm -polly-ast-use-context \
+           -mllvm -polly-detect-keep-going \
+           -mllvm -polly-position=before-vectorizer \
+           -mllvm -polly-vectorizer=stripmine \
+           -mllvm -polly-detect-profitability-min-per-loop-insts=40 \
+           -mllvm -polly-invariant-load-hoisting")
 endif (NOT CMAKE_BUILD_TYPE STREQUAL "Debug")
 
-option(BUILD_TESTING OFF)
-option(XZ_DOC OFF)
-option(XZ_LZIP_DECODER OFF)
-option(XZ_MICROLZMA_DECODER OFF)
-option(XZ_MICROLZMA_ENCODER OFF)
-option(XZ_TOOL_LZMADEC OFF)
-option(XZ_TOOL_LZMAINFO OFF)
-option(XZ_TOOL_XZ OFF)
-option(XZ_TOOL_XZDEC OFF)
-FetchContent_Declare(
-        liblzma
-        GIT_REPOSITORY https://github.com/tukaani-project/xz.git
-        GIT_TAG v5.8.3
-        GIT_SHALLOW 1
-)
+# Change the default path of fetch content to avoid downloading the same dependencies per architecture
+get_filename_component(deps "../_deps" REALPATH BASE_DIR "${CMAKE_BINARY_DIR}")
+set(FETCHCONTENT_BASE_DIR ${deps})
+
+FetchContent_Declare(liblzma
+        GIT_REPOSITORY  https://git.tukaani.org/xz.git
+        GIT_TAG         v5.4.1
+        PATCH_COMMAND   git apply ${CMAKE_CURRENT_LIST_DIR}/0001-Don-t-build-other-binarys.patch || true
+        )
 
 FetchContent_MakeAvailable(liblzma)
 include_directories(${liblzma_SOURCE_DIR}/src/liblzma/api)
 
 # Build GNUTLS libnettle
-if (CMAKE_HOST_SYSTEM_NAME STREQUAL "Windows")
-    set(NDK_VERSION "${ANDROID_NDK_MAJOR}.${ANDROID_NDK_MINOR}.${ANDROID_NDK_BUILD}")
-    set(TOOLCHAIN "$ANDROID_HOME/ndk/${NDK_VERSION}/toolchains/llvm/prebuilt/linux-x86_64/bin")
-    set(WSL wsl)
-else ()
-    set(TOOLCHAIN "${ANDROID_TOOLCHAIN_ROOT}/bin")
-endif ()
-set(CONFIGURE_COMMAND ${WSL} ./.bootstrap && ${WSL} ./configure --disable-public-key --disable-dependency-tracking
-        "--host=${CMAKE_C_COMPILER_TARGET}"
-        "CFLAGS=${CMAKE_C_FLAGS} -Qunused-arguments"
-        "AR=${TOOLCHAIN}/llvm-ar"
-        "CC=${TOOLCHAIN}/clang --target=${CMAKE_C_COMPILER_TARGET}"
-        "RANLIB=${TOOLCHAIN}/llvm-ranlib"
-)
-ExternalProject_Add(
-        nettle
-        GIT_REPOSITORY https://gitlab.com/gnutls/nettle.git
-        GIT_TAG nettle_4.0_release_20260205
-        GIT_SHALLOW 1
-        GIT_CONFIG core.autocrlf=input
-        CONFIGURE_COMMAND ${CONFIGURE_COMMAND}
-        BUILD_COMMAND ${WSL} make -j4 libnettle.a
-        INSTALL_COMMAND ""
-        BUILD_IN_SOURCE 1
-        BUILD_BYPRODUCTS <SOURCE_DIR>/libnettle.a
-)
-
-ExternalProject_Get_Property(nettle SOURCE_DIR)
-include_directories(${SOURCE_DIR}/..)
-add_library(libnettle STATIC IMPORTED)
-set_property(TARGET libnettle PROPERTY IMPORTED_LOCATION ${SOURCE_DIR}/libnettle.a)
-add_dependencies(libnettle nettle)
+add_subdirectory(nettle)
 
 # Configure libnettle support for libarchive
+include_directories(nettle)
+include_directories(.)
 set(HAVE_LIBNETTLE 1)
 set(HAVE_NETTLE_AES_H 1)
 set(HAVE_NETTLE_HMAC_H 1)
@@ -89,76 +50,18 @@ SET(HAVE_LZMA_STREAM_ENCODER_MT 1)
 SET(HAVE_LZMADEC_H 1)
 SET(HAVE_LIBLZMADEC 1)
 
-option(ENABLE_OPENSSL OFF)
-option(ENABLE_TAR OFF)
-option(ENABLE_CPIO OFF)
-option(ENABLE_CAT OFF)
-option(ENABLE_UNZIP OFF)
-option(ENABLE_TEST OFF)
+# Configure libarchive link's static lib
+SET(LIBARCHIVE_CUSTOM_LIBS "nettle" "liblzma")
 
-set(LIBARCHIVE_PATCH
-        ${CMAKE_CURRENT_LIST_DIR}/0001-Fix-zip_time-performance.patch
-        ${CMAKE_CURRENT_LIST_DIR}/0002-Use-UTF-8-as-default-charset-on-bionic.patch
-)
-FetchContent_Declare(
-        libarchive
-        GIT_REPOSITORY https://github.com/libarchive/libarchive.git
-        GIT_TAG v3.8.7
-        GIT_SHALLOW 1
-        PATCH_COMMAND git apply --check -R ${LIBARCHIVE_PATCH} || git apply ${LIBARCHIVE_PATCH}
-)
+FetchContent_Declare(libarchive
+        GIT_REPOSITORY  https://github.com/libarchive/libarchive
+        GIT_TAG         v3.6.2
+        PATCH_COMMAND   git apply ${CMAKE_CURRENT_LIST_DIR}/0001-Don-t-build-shared-lib.patch ${CMAKE_CURRENT_LIST_DIR}/0002-Insert-link-libs.patch || true
+        )
 
 FetchContent_MakeAvailable(libarchive)
-target_link_libraries(archive_static liblzma libnettle)
 include_directories(${libarchive_SOURCE_DIR}/libarchive)
 
-FetchContent_Declare(
-        libwebp
-        GIT_REPOSITORY https://github.com/webmproject/libwebp.git
-        GIT_TAG v1.6.0
-        GIT_SHALLOW 1
-)
-
-option(WEBP_BUILD_ANIM_UTILS OFF)
-option(WEBP_BUILD_CWEBP OFF)
-option(WEBP_BUILD_DWEBP OFF)
-option(WEBP_BUILD_VWEBP OFF)
-option(WEBP_BUILD_WEBPINFO OFF)
-option(WEBP_BUILD_LIBWEBPMUX OFF)
-option(WEBP_BUILD_EXTRAS OFF)
-option(WEBP_ENABLE_SWAP_16BIT_CSP ON)
-
-# Disable runtime detection of NEON support as NEON is required since API level 23
-# https://source.android.com/docs/compatibility/6.0/android-6.0-cdd#3_3_1_application_binary_interfaces
-unset(ANDROID)
-FetchContent_MakeAvailable(libwebp)
-if (CMAKE_SYSTEM_NAME STREQUAL "Android")
-    set(ANDROID 1)
-endif ()
-
-set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS ../../../../rust-toolchain.toml)
-unset(Rust_TOOLCHAIN CACHE)
-FetchContent_Declare(
-        Corrosion
-        GIT_REPOSITORY https://github.com/FooIbar/corrosion.git
-        GIT_TAG v0.6.1
-        GIT_SHALLOW 1
-)
-
-FetchContent_MakeAvailable(Corrosion)
-corrosion_import_crate(
-        MANIFEST_PATH ../rust/Cargo.toml
-        LOCKED
-        FEATURES $<IF:$<VERSION_GREATER_EQUAL:${ANDROID_NATIVE_API_LEVEL},26>,android-26,android>
-        FLAGS $<$<NOT:$<CONFIG:Debug>>:-Z build-std -Z build-std-features=>
-)
-corrosion_add_target_rustflags(ehviewer_rust $<$<NOT:$<CONFIG:Debug>>:-Z unstable-options -C panic=immediate-abort -Z location-detail=none -Z fmt-debug=none>)
-corrosion_link_libraries(ehviewer_rust android jnigraphics log webp webpdemux)
-
 # Build and link our app's native lib
-add_library(${PROJECT_NAME} SHARED archive.c gifutils.c hash.c natsort/strnatcmp.c)
-target_link_libraries(
-        ${PROJECT_NAME} archive_static ehviewer_rust
-        -Wl,-u,JNI_OnLoad -Wl,--undefined-glob,Java_*
-        -Wl,--version-script,${CMAKE_SOURCE_DIR}/libehviewer.map.txt
-)
+add_library(${PROJECT_NAME} SHARED archive.c fdutils.c gifutils.c natsort/strnatcmp.c)
+target_link_libraries(${PROJECT_NAME} archive_static log)

app/src/main/cpp/archive.c

@@ -1,5 +1,5 @@
 /*
- * Copyright 2022-2024 Tarsin Norbin
+ * Copyright 2022 Tarsin Norbin
  *
  * This file is part of EhViewer
  *
@@ -45,29 +45,33 @@ typedef struct {
 typedef struct {
     const char *filename;
     int index;
-    ssize_t size;
-    void *addr;
+    size_t size;
 } entry;
 
+pthread_mutex_t ctx_lock;
+static archive_ctx **ctx_pool;
 #define CTX_POOL_SIZE 20
-#define MAX_PARALLEL_DECOMP 4
-#define max(a, b) ((a) > (b) ? (a) : (b))
 
-static pthread_mutex_t ctx_pool_mutex = PTHREAD_MUTEX_INITIALIZER;
-static archive_ctx **ctx_pool = NULL;
-static pthread_mutex_t buffer_mutex = PTHREAD_MUTEX_INITIALIZER;
-static void *decode_buffer[MAX_PARALLEL_DECOMP];
+static void *mempool = NULL;
+static size_t *mempoolofs = NULL;
+
+#define PAGE_ALIGN(x) ((x + ~PAGE_MASK) & PAGE_MASK)
+
+#define MEMPOOL_ADDR_BY_SORTED_IDX(x) (mempool + (index ? mempoolofs[index - 1] : 0))
+#define MEMPOOL_SIZE (mempoolofs[entryCount - 1])
+#define MEMPOOL_ENTITY_SIZE(x) PAGE_ALIGN(entries[x].size)
+
+#define PROT_RW (PROT_WRITE | PROT_READ)
+#define MAP_ANON_POOL (MAP_ANONYMOUS | MAP_NORESERVE | MAP_PRIVATE | MAP_UNINITIALIZED)
+
 static bool need_encrypt = false;
 static char *passwd = NULL;
-static void *archiveAddr = MAP_FAILED;
+static void *archiveAddr = NULL;
 static size_t archiveSize = 0;
 static entry *entries = NULL;
 static size_t entryCount = 0;
-static ssize_t max_file_size = 0;
 
-#define SUPPORT_EXT_COUNT 11
-
-const char supportExt[SUPPORT_EXT_COUNT][5] = {
+const char supportExt[9][6] = {
         "jpeg",
         "jpg",
         "png",
@@ -76,104 +80,92 @@ const char supportExt[SUPPORT_EXT_COUNT][5] = {
         "bmp",
         "ico",
         "wbmp",
-        "heic",
-        "heif",
-        "avif"
+        "heif"
 };
 
 static inline int filename_is_playable_file(const char *name) {
-    if (!name)
-        return false;
     const char *dotptr = strrchr(name, '.');
     if (!dotptr++)
         return false;
     int i;
-    for (i = 0; i < SUPPORT_EXT_COUNT; i++)
+    for (i = 0; i < 9; i++)
         if (strcmp(dotptr, supportExt[i]) == 0)
             return true;
     return false;
 }
 
-static inline bool archive_entry_is_file(struct archive_entry *entry) {
-    return archive_entry_filetype(entry) == AE_IFREG;
-}
-
-static inline bool archive_entry_is_playable(struct archive_entry *entry) {
-    return archive_entry_is_file(entry) &&
-           filename_is_playable_file(archive_entry_pathname(entry));
-}
-
 static inline int compare_entries(const void *a, const void *b) {
     const char *fa = ((entry *) a)->filename;
     const char *fb = ((entry *) b)->filename;
     return strnatcmp(fa, fb);
 }
 
-#define ADDR_IN_FILE_MAPPING(addr) (addr >= archiveAddr && addr < archiveAddr + archiveSize)
-
-static bool fill_entry_zero_copy(struct archive *arc, entry *entry) {
-    void *buffer = NULL;
-    size_t buffer_size = 0;
-    la_int64_t output_ofs = 0;
-    archive_read_data_block(arc, (const void **) &buffer, &buffer_size, &output_ofs);
-    bool zero_copy = ADDR_IN_FILE_MAPPING(buffer) && !output_ofs && buffer_size == entry->size;
-    entry->addr = zero_copy ? buffer : NULL;
-    return zero_copy;
-}
-
-static void archive_map_entries_index(archive_ctx *ctx, bool sort) {
-    int count = 0;
-    bool zero_copy = true;
+static long archive_map_entries_index(archive_ctx *ctx) {
+    long count = 0;
     while (archive_read_next_header(ctx->arc, &ctx->entry) == ARCHIVE_OK) {
         const char *name = archive_entry_pathname(ctx->entry);
-        if (archive_entry_is_file(ctx->entry) && filename_is_playable_file(name)) {
+        if (filename_is_playable_file(name)) {
             entries[count].filename = strdup(name);
             entries[count].index = count;
-            ssize_t size = archive_entry_size(ctx->entry);
-            max_file_size = max(size, max_file_size);
-            entries[count].size = size;
-            // We don't expect zero copy if first content can't do zero copy
-            if (zero_copy) zero_copy = fill_entry_zero_copy(ctx->arc, &entries[count]);
+            entries[count].size = archive_entry_size(ctx->entry);
             count++;
         }
     }
-    if (sort) qsort(entries, entryCount, sizeof(entry), compare_entries);
+    if (!count)
+        LOGE("%s", archive_error_string(ctx->arc));
+    qsort(entries, entryCount, sizeof(entry), compare_entries);
+    return count;
 }
 
-static void *acquire_decode_buffer() {
-    void *addr = NULL;
-    pthread_mutex_lock(&buffer_mutex);
-    for (int i = 0; i < MAX_PARALLEL_DECOMP; ++i) {
-        addr = decode_buffer[i];
-        if (addr) {
-            decode_buffer[i] = NULL;
-            break;
-        }
+static bool archive_prealloc_mempool() {
+    mempoolofs = calloc(entryCount, sizeof(size_t));
+    for (int i = 0; i < entryCount; ++i) {
+        if (!i)
+            mempoolofs[i] = PAGE_ALIGN(entries[i].size);
+        else
+            mempoolofs[i] = PAGE_ALIGN(entries[i].size) + mempoolofs[i - 1];
     }
-    pthread_mutex_unlock(&buffer_mutex);
-    if (!addr) addr = malloc(max_file_size);
-    return addr;
-}
-
-static void release_decode_buffer(void *buffer) {
-    pthread_mutex_lock(&buffer_mutex);
-    for (int i = 0; i < MAX_PARALLEL_DECOMP; ++i) {
-        void *addr = decode_buffer[i];
-        if (!addr) {
-            decode_buffer[i] = buffer;
-            pthread_mutex_unlock(&buffer_mutex);
-            return;
-        }
+    mempool = mmap(0, MEMPOOL_SIZE, PROT_RW, MAP_ANON_POOL, -1, 0);
+    if (mempool == MAP_FAILED) {
+        LOGE("%s%s", "mmap failed with error ", strerror(errno));
+        return false;
     }
-    pthread_mutex_unlock(&buffer_mutex);
-    free(buffer);
+    return true;
 }
 
-static int archive_list_all_entries(archive_ctx *ctx) {
-    int count = 0;
+
+// Mincore does not support anon mapping yet
+// Now that we use MADV_FREE, how can we detect whether pages is reclaimed?
+static bool is_mempool_pages_present_and_lock(int index) {
+    void *addr = MEMPOOL_ADDR_BY_SORTED_IDX(index);
+    size_t size = MEMPOOL_ENTITY_SIZE(index);
+    mlock(addr, size);
+#if 0
+    unsigned char vec[size / PAGE_SIZE];
+    unsigned char r = 1;
+    mincore(addr, size, vec);
+    for (int i = 0; i < size / PAGE_SIZE; ++i) r &= vec[i];
+    return r;
+#endif
+    return false;
+}
+
+#define MEMPOOL_IN_CORE_AND_LOCK(x) is_mempool_pages_present_and_lock(x)
+
+static void mempool_release_pages(void *addr, size_t size) {
+    size = PAGE_ALIGN(size);
+    munlock(addr, size);
+    int ret = madvise(addr, size, MADV_FREE);
+    if (ret == -EINVAL) madvise(addr, size, MADV_DONTNEED);
+}
+
+static long archive_list_all_entries(archive_ctx *ctx) {
+    long count = 0;
     while (archive_read_next_header(ctx->arc, &ctx->entry) == ARCHIVE_OK)
-        if (archive_entry_is_playable(ctx->entry))
+        if (filename_is_playable_file(archive_entry_pathname(ctx->entry)))
             count++;
+    if (!count)
+        LOGE("%s", archive_error_string(ctx->arc));
     return count;
 }
 
@@ -185,10 +177,18 @@ static void archive_release_ctx(archive_ctx *ctx) {
     }
 }
 
-static archive_ctx *archive_alloc_ctx() {
-    archive_ctx *ctx = calloc(1, sizeof(archive_ctx));
+static int archive_alloc_ctx(archive_ctx **ctxptr) {
+    archive_ctx *ctx;
+    int err;
+    ctx = calloc(1, sizeof(archive_ctx));
+    if (!ctx)
+        return -ENOMEM;
     ctx->arc = archive_read_new();
     ctx->using = 1;
+    if (!ctx->arc) {
+        free(ctx);
+        return -ENOMEM;
+    }
     archive_read_support_format_tar(ctx->arc);
     archive_read_support_format_7zip(ctx->arc);
     archive_read_support_format_rar5(ctx->arc);
@@ -198,19 +198,19 @@ static archive_ctx *archive_alloc_ctx() {
     archive_read_set_option(ctx->arc, "zip", "ignorecrc32", "1");
     if (passwd)
         archive_read_add_passphrase(ctx->arc, passwd);
-    int err = archive_read_open_memory(ctx->arc, archiveAddr, archiveSize);
-    if (err < ARCHIVE_OK) {
-        LOGE("%s%s", "Open archive failed: ", archive_error_string(ctx->arc));
+    err = archive_read_open_memory(ctx->arc, archiveAddr, archiveSize);
+    if (err) {
         archive_read_free(ctx->arc);
         free(ctx);
-        return NULL;
+        return err;
     }
-    return ctx;
+    *ctxptr = ctx;
+    return 0;
 }
 
 static int archive_skip_to_index(archive_ctx *ctx, int index) {
     while (archive_read_next_header(ctx->arc, &ctx->entry) == ARCHIVE_OK) {
-        if (!archive_entry_is_playable(ctx->entry))
+        if (!filename_is_playable_file(archive_entry_pathname(ctx->entry)))
             continue;
         if (ctx->next_index++ == index) {
             return ctx->next_index - 1;
@@ -222,7 +222,7 @@ static int archive_skip_to_index(archive_ctx *ctx, int index) {
 static int archive_get_ctx(archive_ctx **ctxptr, int idx) {
     int ret;
     archive_ctx *ctx = NULL;
-    pthread_mutex_lock(&ctx_pool_mutex);
+    pthread_mutex_lock(&ctx_lock);
     for (int i = 0; i < CTX_POOL_SIZE; i++) {
         if (!ctx_pool[i])
             continue;
@@ -237,14 +237,16 @@ static int archive_get_ctx(archive_ctx **ctxptr, int idx) {
     }
     if (ctx)
         ctx->using = 1;
-    pthread_mutex_unlock(&ctx_pool_mutex);
+    pthread_mutex_unlock(&ctx_lock);
 
     if (!ctx) {
         archive_ctx *victimCtx = NULL;
         int victimIdx = 0;
         int replace = 1;
-        ctx = archive_alloc_ctx();
-        pthread_mutex_lock(&ctx_pool_mutex);
+        ret = archive_alloc_ctx(&ctx);
+        if (ret)
+            return ret;
+        pthread_mutex_lock(&ctx_lock);
         for (int i = 0; i < CTX_POOL_SIZE; i++) {
             if (!ctx_pool[i]) {
                 ctx_pool[i] = ctx;
@@ -258,14 +260,16 @@ static int archive_get_ctx(archive_ctx **ctxptr, int idx) {
                 victimIdx = i;
             }
         }
-        if (replace) ctx_pool[victimIdx] = ctx;
-        pthread_mutex_unlock(&ctx_pool_mutex);
-        if (replace) archive_release_ctx(victimCtx);
+        if (replace) {
+            archive_release_ctx(victimCtx);
+            ctx_pool[victimIdx] = ctx;
+        }
+        pthread_mutex_unlock(&ctx_lock);
     }
     ret = archive_skip_to_index(ctx, idx);
     if (ret != idx) {
         ret = archive_errno(ctx->arc);
-        LOGE("Skip to index failed: %s", archive_error_string(ctx->arc));
+        LOGE("Skip to index failed:%s", archive_error_string(ctx->arc));
         archive_release_ctx(ctx);
         return ret;
     }
@@ -274,146 +278,163 @@ static int archive_get_ctx(archive_ctx **ctxptr, int idx) {
 }
 
 JNIEXPORT jint JNICALL
-Java_com_hippo_ehviewer_jni_ArchiveKt_openArchive(JNIEnv *env, jclass thiz, jint fd, jlong size, jboolean sort_entries) {
+Java_com_hippo_UriArchiveAccessor_openArchive(JNIEnv *env, jobject thiz, jint fd, jlong size) {
     EH_UNUSED(env);
     EH_UNUSED(thiz);
     archive_ctx *ctx = NULL;
-    archiveAddr = mmap(0, size, PROT_READ, MAP_PRIVATE, fd, 0);
+    int mmap_flags = MAP_PRIVATE;
+    archiveAddr = mmap64(0, size, PROT_READ, mmap_flags, fd, 0);
     if (archiveAddr == MAP_FAILED) {
-        LOGE("%s%s", "mmap failed with error ", strerror(errno));
+        LOGE("%s%s", "mmap64 failed with error ", strerror(errno));
         return 0;
     }
     archiveSize = size;
+    madvise_log_if_error(archiveAddr, archiveSize, MADV_WILLNEED);
+    pthread_mutex_init(&ctx_lock, 0);
     ctx_pool = calloc(CTX_POOL_SIZE, sizeof(archive_ctx **));
-    ctx = archive_alloc_ctx();
-    if (!ctx) return 0;
-
-    entryCount = archive_list_all_entries(ctx);
-    LOGI("%s%zu%s", "Found ", entryCount, " images in archive");
-    if (!entryCount) {
-        LOGE("%s%s", "Archive read failed: ", archive_error_string(ctx->arc));
-        archive_release_ctx(ctx);
+    if (!ctx_pool) {
+        LOGE("Allocate archive ctx pool failed:ENOMEM");
         return 0;
     }
+    long r = archive_alloc_ctx(&ctx);
+    if (r) {
+        if (r == -ENOMEM)
+            LOGE("%s", "Mem alloc failed");
+        LOGE("%s%s", "Archive open failed:", archive_error_string(ctx->arc));
+    } else {
+        entryCount = archive_list_all_entries(ctx);
+        LOGI("%s%zu%s", "Found ", entryCount, " image entries in archive");
 
-    // We must read through the file|vm then we can know whether it is encrypted
-    int encryptRet = archive_read_has_encrypted_entries(ctx->arc);
-    switch (encryptRet) {
-        case 1: // At lease 1 encrypted entry
-            need_encrypt = true;
-            break;
-        case 0: // format supports but no encrypted entry found
-        default:
-            need_encrypt = false;
+        // We must read through the file|vm then we can know whether it is encrypted
+        int encryptRet = archive_read_has_encrypted_entries(ctx->arc);
+        switch (encryptRet) {
+            case 1: // At lease 1 encrypted entry
+                need_encrypt = true;
+                break;
+            case 0: // format supports but no encrypted entry found
+            default:
+                need_encrypt = false;
+        }
+
+        int format = archive_format(ctx->arc);
+        switch (format) {
+            case ARCHIVE_FORMAT_ZIP:
+            case ARCHIVE_FORMAT_RAR_V5:
+                madvise_log_if_error(archiveAddr, archiveSize, MADV_SEQUENTIAL);
+                break;
+            case ARCHIVE_FORMAT_7ZIP: // Seek is bad
+                madvise_log_if_error(archiveAddr, archiveSize, MADV_RANDOM);
+                break;
+            default:;
+        }
     }
 
-    int format = archive_format(ctx->arc);
-    switch (format) {
-        case ARCHIVE_FORMAT_ZIP:
-        case ARCHIVE_FORMAT_RAR_V5:
-            madvise_log_if_error(archiveAddr, archiveSize, MADV_SEQUENTIAL);
-            break;
-        case ARCHIVE_FORMAT_7ZIP: // Seek is bad
-            madvise_log_if_error(archiveAddr, archiveSize, MADV_RANDOM);
-            break;
-        default:;
-    }
     archive_release_ctx(ctx);
 
-    ctx = archive_alloc_ctx();
-    if (!ctx) return 0;
-    entries = calloc(entryCount, sizeof(entry));
-    archive_map_entries_index(ctx, sort_entries);
+    r = archive_alloc_ctx(&ctx);
+    if (r) {
+        if (r == -ENOMEM)
+            LOGE("%s", "Mem alloc failed");
+        r = 0;
+        LOGE("%s%s", "Archive open failed:", archive_error_string(ctx->arc));
+    } else {
+        entries = calloc(entryCount, sizeof(entry));
+        r = archive_map_entries_index(ctx);
+        if (!archive_prealloc_mempool()) {
+            r = 0;
+            for (int i = 0; i < entryCount; ++i) {
+                free((void *) entries[i].filename);
+            }
+            free(entries);
+        }
+    }
+
     archive_release_ctx(ctx);
-    return (int) entryCount;
+    return r;
 }
 
+#pragma clang diagnostic push
+#pragma ide diagnostic ignored "ConstantConditionsOC"
+#pragma ide diagnostic ignored "UnreachableCode"
+
 JNIEXPORT jobject JNICALL
-Java_com_hippo_ehviewer_jni_ArchiveKt_extractToByteBuffer(JNIEnv *env, jclass thiz, jint index) {
+Java_com_hippo_UriArchiveAccessor_extractToByteBuffer(JNIEnv *env, jobject thiz, jint index) {
     EH_UNUSED(env);
     EH_UNUSED(thiz);
-    entry *entry = &entries[index];
-    ssize_t size = entry->size;
-    if (entry->addr) {
-        return (*env)->NewDirectByteBuffer(env, entry->addr, size);
-    } else {
+    void *addr = MEMPOOL_ADDR_BY_SORTED_IDX(index);
+    size_t size = entries[index].size;
+    if (!MEMPOOL_IN_CORE_AND_LOCK(index)) {
+        index = entries[index].index;
         archive_ctx *ctx = NULL;
-        if (!archive_get_ctx(&ctx, entry->index)) {
-            void *addr = acquire_decode_buffer();
-            ssize_t bytes = archive_read_data(ctx->arc, addr, size);
-            ctx->using = 0;
-            if (bytes == size) {
-                return (*env)->NewDirectByteBuffer(env, addr, size);
-            } else {
-                if (bytes < 0) {
-                    LOGE("%s%s", "Archive read failed: ", archive_error_string(ctx->arc));
-                } else {
-                    LOGE("%s", "No enough data read, WTF?");
-                }
-            }
-            release_decode_buffer(addr);
-        }
+        int ret;
+        ret = archive_get_ctx(&ctx, index);
+        if (ret) return 0;
+        ret = archive_read_data(ctx->arc, addr, size);
+        ctx->using = 0;
+        if (ret == size)
+            return (*env)->NewDirectByteBuffer(env, addr, size);
+        if (ret != size)
+            LOGE("%s", "No enough data read, WTF?");
+        if (ret < 0)
+            LOGE("%s%s", "Archive read failed:", archive_error_string(ctx->arc));
+        mempool_release_pages(addr, size);
+    } else {
+        return (*env)->NewDirectByteBuffer(env, addr, size);
     }
     return 0;
 }
 
+#pragma clang diagnostic pop
+
 JNIEXPORT void JNICALL
-Java_com_hippo_ehviewer_jni_ArchiveKt_closeArchive(JNIEnv *env, jclass thiz) {
+Java_com_hippo_UriArchiveAccessor_closeArchive(JNIEnv *env, jobject thiz) {
     EH_UNUSED(env);
     EH_UNUSED(thiz);
-    if (ctx_pool) {
-        for (int i = 0; i < CTX_POOL_SIZE; i++)
-            archive_release_ctx(ctx_pool[i]);
-        free(ctx_pool);
-        ctx_pool = NULL;
-    }
+    for (int i = 0; i < CTX_POOL_SIZE; i++)
+        archive_release_ctx(ctx_pool[i]);
     free(passwd);
+    free(ctx_pool);
+    pthread_mutex_destroy(&ctx_lock);
     passwd = NULL;
     need_encrypt = false;
-    if (archiveAddr != MAP_FAILED) {
-        munmap(archiveAddr, archiveSize);
-        archiveAddr = MAP_FAILED;
-    }
-    for (int i = 0; i < MAX_PARALLEL_DECOMP; ++i) {
-        free(decode_buffer[i]);
-        decode_buffer[i] = NULL;
-    }
-    max_file_size = 0;
-    if (entries) {
-        for (int i = 0; i < entryCount; ++i) {
-            free((void *) entries[i].filename);
-        }
-        free(entries);
-        entries = NULL;
+    munmap(archiveAddr, archiveSize);
+    munmap(mempool, MEMPOOL_SIZE);
+    free(mempoolofs);
+    for (int i = 0; i < entryCount; ++i) {
+        free((void *) entries[i].filename);
     }
+    free(entries);
 }
 
 JNIEXPORT jboolean JNICALL
-Java_com_hippo_ehviewer_jni_ArchiveKt_needPassword(JNIEnv *env, jclass thiz) {
+Java_com_hippo_UriArchiveAccessor_needPassword(JNIEnv *env, jobject thiz) {
     EH_UNUSED(env);
     EH_UNUSED(thiz);
     return need_encrypt;
 }
 
 JNIEXPORT jboolean JNICALL
-Java_com_hippo_ehviewer_jni_ArchiveKt_providePassword(JNIEnv *env, jclass thiz, jstring str) {
+Java_com_hippo_UriArchiveAccessor_providePassword(JNIEnv *env, jobject thiz, jstring str) {
     EH_UNUSED(thiz);
     struct archive_entry *entry;
     archive_ctx *ctx;
     jboolean ret = true;
     int len = (*env)->GetStringUTFLength(env, str);
-    passwd = realloc(passwd, len + 1);
-    (*env)->GetStringUTFRegion(env, str, 0, len, passwd);
-    passwd[len] = 0;
-    ctx = archive_alloc_ctx();
-    char tmpBuf[4096];
+    passwd = realloc(passwd, len * sizeof(char));
+    if (!passwd) {
+        LOGE("Allocate passwd buffer failed");
+        return false;
+    }
+    strcpy(passwd, (*env)->GetStringUTFChars(env, str, NULL));
+    archive_alloc_ctx(&ctx);
+    void *tmpBuf = alloca(4096);
     while (archive_read_next_header(ctx->arc, &entry) == ARCHIVE_OK) {
-        if (!archive_entry_is_playable(entry))
+        if (!filename_is_playable_file(archive_entry_pathname(entry)))
             continue;
         if (!archive_entry_is_encrypted(entry))
             continue;
         if (archive_read_data(ctx->arc, tmpBuf, 4096) < ARCHIVE_OK) {
-            LOGE("%s%s", "Archive read failed: ", archive_error_string(ctx->arc));
+            LOGE("%s%s", "Archive read failed:", archive_error_string(ctx->arc));
             ret = false;
         }
         break;
@@ -423,15 +444,22 @@ Java_com_hippo_ehviewer_jni_ArchiveKt_providePassword(JNIEnv *env, jclass thiz,
 }
 
 JNIEXPORT jstring JNICALL
-Java_com_hippo_ehviewer_jni_ArchiveKt_getExtension(JNIEnv *env, jclass thiz, jint index) {
+Java_com_hippo_UriArchiveAccessor_getFilename(JNIEnv *env, jobject thiz, jint index) {
     EH_UNUSED(env);
     EH_UNUSED(thiz);
-    const char *ext = strrchr(entries[index].filename, '.') + 1;
-    return (*env)->NewStringUTF(env, ext);
+    index = entries[index].index;
+    archive_ctx *ctx = NULL;
+    int ret;
+    ret = archive_get_ctx(&ctx, index);
+    if (ret)
+        return NULL;
+    jstring str = (*env)->NewStringUTF(env, archive_entry_pathname(ctx->entry));
+    ctx->using = 0;
+    return str;
 }
 
-JNIEXPORT jboolean JNICALL
-Java_com_hippo_ehviewer_jni_ArchiveKt_extractToFd(JNIEnv *env, jclass thiz, jint index, jint fd) {
+JNIEXPORT void JNICALL
+Java_com_hippo_UriArchiveAccessor_extractToFd(JNIEnv *env, jobject thiz, jint index, jint fd) {
     EH_UNUSED(env);
     EH_UNUSED(thiz);
     index = entries[index].index;
@@ -439,52 +467,15 @@ Java_com_hippo_ehviewer_jni_ArchiveKt_extractToFd(JNIEnv *env, jclass thiz, jint
     int ret;
     ret = archive_get_ctx(&ctx, index);
     if (!ret) {
-        ret = archive_read_data_into_fd(ctx->arc, fd);
+        archive_read_data_into_fd(ctx->arc, fd);
         ctx->using = 0;
     }
-    return ret == ARCHIVE_OK;
 }
 
 JNIEXPORT void JNICALL
-Java_com_hippo_ehviewer_jni_ArchiveKt_releaseByteBuffer(JNIEnv *env, jclass thiz, jobject buffer) {
+Java_com_hippo_UriArchiveAccessor_releaseByteBuffer(JNIEnv *env, jobject thiz, jobject buffer) {
     EH_UNUSED(thiz);
     void *addr = (*env)->GetDirectBufferAddress(env, buffer);
-    if (!ADDR_IN_FILE_MAPPING(addr)) {
-        release_decode_buffer(addr);
-    }
-}
-
-JNIEXPORT void JNICALL
-Java_com_hippo_ehviewer_jni_ArchiveKt_archiveFdBatch(JNIEnv *env, jclass clazz, jintArray fd_batch, jobjectArray names, jint arc_fd, jint size) {
-    EH_UNUSED(clazz);
-    struct archive *arc = archive_write_new();
-    struct stat st;
-    char buff[8192];
-    jint fdBatch[size];
-    (*env)->GetIntArrayRegion(env, fd_batch, 0, size, fdBatch);
-    archive_write_set_format_zip(arc);
-    archive_write_zip_set_compression_store(arc);
-    archive_write_open_fd(arc, arc_fd);
-    struct archive_entry *entry = archive_entry_new();
-    for (int i = 0; i < size; i++) {
-        int fd = fdBatch[i];
-        jobject name = (*env)->GetObjectArrayElement(env, names, i);
-        const char *cname = (*env)->GetStringUTFChars(env, name, false);
-        archive_entry_set_pathname(entry, cname);
-        (*env)->ReleaseStringUTFChars(env, name, cname);
-        fstat(fd, &st);
-        archive_entry_copy_stat(entry, &st);
-        archive_entry_set_perm(entry, 0644);
-        archive_write_header(arc, entry);
-        size_t len;
-        do {
-            len = read(fd, buff, sizeof(buff));
-            archive_write_data(arc, buff, len);
-        } while (len > 0);
-        archive_write_finish_entry(arc);
-        archive_entry_clear(entry);
-    }
-    archive_entry_free(entry);
-    archive_write_close(arc);
-    archive_write_free(arc);
+    size_t size = (*env)->GetDirectBufferCapacity(env, buffer);
+    mempool_release_pages(addr, size);
 }

app/src/main/cpp/fdutils.c

@@ -0,0 +1,36 @@
+#include <jni.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/sendfile.h>
+
+#include <android/log.h>
+#include <string.h>
+#include <errno.h>
+
+#define LOG_TAG "mmap_utils"
+
+#include "ehviewer.h"
+
+// TODO: Replace it with AFileDescriptor_getFd when minsdk 31
+// https://developer.android.com/ndk/reference/group/file-descriptor
+JNIEXPORT jint JNICALL
+Java_com_hippo_Native_getFd(JNIEnv *env, jclass clazz, jobject fileDescriptor) {
+    jint fd = -1;
+    jclass fdClass = (*env)->FindClass(env, "java/io/FileDescriptor");
+
+    if (fdClass != NULL) {
+        jfieldID fdClassDescriptorFieldID = (*env)->GetFieldID(env, fdClass, "descriptor", "I");
+        if (fdClassDescriptorFieldID != NULL && fileDescriptor != NULL) {
+            fd = (*env)->GetIntField(env, fileDescriptor, fdClassDescriptorFieldID);
+        }
+    }
+
+    return fd;
+}
+
+JNIEXPORT void JNICALL
+Java_com_hippo_Native_sendfile(JNIEnv *env, jclass clazz, jint from, jint to) {
+    struct stat st;
+    fstat(from, &st);
+    sendfile(to, from, 0, st.st_size);
+}

app/src/main/cpp/gifutils.c

@@ -1,10 +1,7 @@
 #include <jni.h>
 #include <string.h>
 #include <stdbool.h>
-#include <unistd.h>
 #include <android/log.h>
-#include <sys/stat.h>
-#include <sys/mman.h>
 
 #define LOG_TAG "gifUtils"
 
@@ -12,7 +9,6 @@
 
 #define GIF_HEADER_87A "GIF87a"
 #define GIF_HEADER_89A "GIF89a"
-#define GIF_HEADER_LENGTH 6
 
 static int FRAME_DELAY_START_MARKER = 0x0021F904;
 
@@ -23,11 +19,13 @@ typedef signed char byte;
 #define DEFAULT_FRAME_DELAY 10
 
 static inline bool isGif(void *addr) {
-    return !memcmp(addr, GIF_HEADER_87A, GIF_HEADER_LENGTH) ||
-           !memcmp(addr, GIF_HEADER_89A, GIF_HEADER_LENGTH);
+    return !memcmp(addr, GIF_HEADER_87A, 6) || !memcmp(addr, GIF_HEADER_89A, 6);
 }
 
-static void doRewrite(byte *addr, size_t size) {
+JNIEXPORT void JNICALL
+Java_com_hippo_image_Image_rewriteGifSource(JNIEnv *env, jclass clazz, jobject buffer) {
+    byte *addr = (*env)->GetDirectBufferAddress(env, buffer);
+    size_t size = (*env)->GetDirectBufferCapacity(env, buffer);
     if (size < 7 || !isGif(addr)) return;
     for (size_t i = 0; i < size - 8; i++) {
         // TODO: Optimize this hex find with SIMD?
@@ -37,41 +35,10 @@ static void doRewrite(byte *addr, size_t size) {
             byte *end = addr + i + 4;
             if (end[4] != 0) continue;
             int frameDelay = end[2] << 8 | end[1];
-            if (frameDelay >= MINIMUM_FRAME_DELAY)
+            if (frameDelay > MINIMUM_FRAME_DELAY)
                 break; // Quit if the first block looks normal, for performance
             end[1] = DEFAULT_FRAME_DELAY;
             end[2] = 0;
         }
     }
 }
-
-JNIEXPORT jboolean JNICALL
-Java_com_hippo_ehviewer_jni_GifUtilsKt_isGif(JNIEnv *env, jclass clazz, jint fd) {
-    byte buffer[GIF_HEADER_LENGTH];
-    return read(fd, buffer, GIF_HEADER_LENGTH) == GIF_HEADER_LENGTH &&
-           isGif(buffer);
-}
-
-JNIEXPORT void JNICALL
-Java_com_hippo_ehviewer_jni_GifUtilsKt_rewriteGifSource(JNIEnv *env, jclass clazz, jobject buffer) {
-    byte *addr = (*env)->GetDirectBufferAddress(env, buffer);
-    size_t size = (*env)->GetDirectBufferCapacity(env, buffer);
-    doRewrite(addr, size);
-}
-
-JNIEXPORT jobject JNICALL
-Java_com_hippo_ehviewer_jni_GifUtilsKt_mmap(JNIEnv *env, jclass clazz, jint fd) {
-    struct stat64 st;
-    fstat64(fd, &st);
-    size_t size = st.st_size;
-    byte *addr = mmap64(0, size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
-    if (addr == MAP_FAILED) return NULL;
-    return (*env)->NewDirectByteBuffer(env, addr, size);
-}
-
-JNIEXPORT void JNICALL
-Java_com_hippo_ehviewer_jni_GifUtilsKt_munmap(JNIEnv *env, jclass clazz, jobject buffer) {
-    byte *addr = (*env)->GetDirectBufferAddress(env, buffer);
-    size_t size = (*env)->GetDirectBufferCapacity(env, buffer);
-    munmap(addr, size);
-}

app/src/main/cpp/hash.c

@@ -1,39 +0,0 @@
-#include <unistd.h>
-
-#include <jni.h>
-#include <nettle/sha1.h>
-
-#include "ehviewer.h"
-
-#define BUFFER_SIZE 8192
-
-typedef uint8_t byte;
-
-const char hex_digits[] = "0123456789abcdef";
-
-JNIEXPORT jstring JNICALL
-Java_com_hippo_ehviewer_jni_HashKt_sha1(JNIEnv *env, jclass clazz, jint fd) {
-    EH_UNUSED(clazz);
-    struct sha1_ctx ctx;
-    sha1_init(&ctx);
-
-    size_t bytes_read;
-    byte buffer[BUFFER_SIZE];
-    while ((bytes_read = read(fd, buffer, BUFFER_SIZE)) > 0) {
-        sha1_update(&ctx, bytes_read, buffer);
-    }
-
-    byte digest[SHA1_DIGEST_SIZE];
-    sha1_digest(&ctx, digest);
-
-    byte byte;
-    char hex_digest[2 * SHA1_DIGEST_SIZE + 1];
-    for (int i = 0; i < SHA1_DIGEST_SIZE; i++) {
-        byte = digest[i];
-        hex_digest[2 * i] = hex_digits[byte >> 4 & 0xF];
-        hex_digest[2 * i + 1] = hex_digits[byte & 0xF];
-    }
-    hex_digest[2 * SHA1_DIGEST_SIZE] = '\0';
-
-    return (*env)->NewStringUTF(env, hex_digest);
-}

app/src/main/cpp/libehviewer.map.txt

@@ -1,7 +0,0 @@
-{
-  global:
-    JNI_OnLoad;
-    Java_*;
-  local:
-    *;
-};

app/src/main/cpp/natsort/strnatcmp.c

@@ -30,6 +30,7 @@
  * negative chars in their default char type.
  */
 
+#include <stddef.h>     /* size_t */
 #include <ctype.h>
 
 #include "strnatcmp.h"
@@ -38,21 +39,28 @@
 /* These are defined as macros to make it easier to adapt this code to
  * different characters types or comparison functions. */
 static inline int
-nat_isdigit(const char *a)
+nat_isdigit(nat_char a)
 {
-     return isdigit((unsigned char) *a);
+     return isdigit((unsigned char) a);
 }
 
 
 static inline int
-nat_isspace(const char *a)
+nat_isspace(nat_char a)
 {
-     return isspace((unsigned char) *a) || *a == '0' && nat_isdigit(a + 1);
+     return isspace((unsigned char) a);
+}
+
+
+static inline nat_char
+nat_toupper(nat_char a)
+{
+     return toupper((unsigned char) a);
 }
 
 
 static int
-compare_right(const char *a, const char *b)
+compare_right(nat_char const *a, nat_char const *b)
 {
      int bias = 0;
 
@@ -61,11 +69,11 @@ compare_right(const char *a, const char *b)
         both numbers to know that they have the same magnitude, so we
         remember it in BIAS. */
      for (;; a++, b++) {
-          if (!nat_isdigit(a)  &&  !nat_isdigit(b))
+          if (!nat_isdigit(*a)  &&  !nat_isdigit(*b))
                return bias;
-          if (!nat_isdigit(a))
+          if (!nat_isdigit(*a))
                return -1;
-          if (!nat_isdigit(b))
+          if (!nat_isdigit(*b))
                return +1;
           if (*a < *b) {
                if (!bias)
@@ -76,41 +84,94 @@ compare_right(const char *a, const char *b)
           } else if (!*a  &&  !*b)
                return bias;
      }
+
+     return 0;
 }
 
 
-int
-strnatcmp(const char *a, const char *b)
+static int
+compare_left(nat_char const *a, nat_char const *b)
 {
-    int result;
+     /* Compare two left-aligned numbers: the first to have a
+        different value wins. */
+     for (;; a++, b++) {
+          if (!nat_isdigit(*a)  &&  !nat_isdigit(*b))
+               return 0;
+          if (!nat_isdigit(*a))
+               return -1;
+          if (!nat_isdigit(*b))
+               return +1;
+          if (*a < *b)
+               return -1;
+          if (*a > *b)
+               return +1;
+     }
 
-    while (1) {
-         /* skip over leading spaces or zeros */
-          while (nat_isspace(a))
-               a++;
+     return 0;
+}
 
-          while (nat_isspace(b))
-               b++;
+
+static int
+strnatcmp0(nat_char const *a, nat_char const *b, int fold_case)
+{
+     int ai, bi;
+     nat_char ca, cb;
+     int fractional, result;
+
+     ai = bi = 0;
+     while (1) {
+          ca = a[ai]; cb = b[bi];
+
+          /* skip over leading spaces or zeros */
+          while (nat_isspace(ca))
+               ca = a[++ai];
+
+          while (nat_isspace(cb))
+               cb = b[++bi];
 
           /* process run of digits */
-          if (nat_isdigit(a)  &&  nat_isdigit(b)) {
-               if ((result = compare_right(a, b)) != 0)
-                    return result;
+          if (nat_isdigit(ca)  &&  nat_isdigit(cb)) {
+               fractional = (ca == '0' || cb == '0');
+
+               if (fractional) {
+                    if ((result = compare_left(a+ai, b+bi)) != 0)
+                         return result;
+               } else {
+                    if ((result = compare_right(a+ai, b+bi)) != 0)
+                         return result;
+               }
           }
 
-          if (!*a && !*b) {
+          if (!ca && !cb) {
                /* The strings compare the same.  Perhaps the caller
                   will want to call strcmp to break the tie. */
                return 0;
           }
 
-          if (*a < *b)
+          if (fold_case) {
+               ca = nat_toupper(ca);
+               cb = nat_toupper(cb);
+          }
+
+          if (ca < cb)
                return -1;
 
-          if (*a > *b)
+          if (ca > cb)
                return +1;
 
-          a++; b++;
+          ++ai; ++bi;
      }
 }
 
+
+int
+strnatcmp(nat_char const *a, nat_char const *b) {
+     return strnatcmp0(a, b, 0);
+}
+
+
+/* Compare, recognizing numeric string and ignoring case. */
+int
+strnatcasecmp(nat_char const *a, nat_char const *b) {
+     return strnatcmp0(a, b, 1);
+}

app/src/main/cpp/natsort/strnatcmp.h

@@ -24,7 +24,14 @@
 extern "C" {
 #endif
 
-int strnatcmp(const char *a, const char *b);
+/* CUSTOMIZATION SECTION
+ *
+ * You can change this typedef, but must then also change the inline
+ * functions in strnatcmp.c */
+typedef char nat_char;
+
+int strnatcmp(nat_char const *a, nat_char const *b);
+int strnatcasecmp(nat_char const *a, nat_char const *b);
 
 #ifdef __cplusplus
 }

app/src/main/cpp/nettle/CMakeLists.txt

@@ -0,0 +1,239 @@
+cmake_minimum_required(VERSION 3.4.1)
+project(nettle C)
+
+set(LIBNETTLE_DEFINITIONS
+        -DHAVE_CONFIG_H)
+
+set(LIBNETTLE_SOURCES
+        nettle/aes-decrypt-internal.c
+        nettle/aes-decrypt.c
+        nettle/aes-decrypt-table.c
+        nettle/aes128-decrypt.c
+        nettle/aes192-decrypt.c
+        nettle/aes256-decrypt.c
+        nettle/aes-encrypt-internal.c
+        nettle/aes-encrypt.c
+        nettle/aes-encrypt-table.c
+        nettle/aes128-encrypt.c
+        nettle/aes192-encrypt.c
+        nettle/aes256-encrypt.c
+        nettle/aes-invert-internal.c
+        nettle/aes-set-key-internal.c
+        nettle/aes-set-encrypt-key.c
+        nettle/aes-set-decrypt-key.c
+        nettle/aes128-set-encrypt-key.c
+        nettle/aes128-set-decrypt-key.c
+        nettle/aes128-meta.c
+        nettle/aes192-set-encrypt-key.c
+        nettle/aes192-set-decrypt-key.c
+        nettle/aes192-meta.c
+        nettle/aes256-set-encrypt-key.c
+        nettle/aes256-set-decrypt-key.c
+        nettle/aes256-meta.c
+        nettle/nist-keywrap.c
+        nettle/arcfour.c
+        nettle/arcfour-crypt.c
+        nettle/arctwo.c
+        nettle/arctwo-meta.c
+        nettle/blowfish.c
+        nettle/blowfish-bcrypt.c
+        nettle/base16-encode.c
+        nettle/base16-decode.c
+        nettle/base16-meta.c
+        nettle/base64-encode.c
+        nettle/base64-decode.c
+        nettle/base64-meta.c
+        nettle/base64url-encode.c
+        nettle/base64url-decode.c
+        nettle/base64url-meta.c
+        nettle/buffer.c
+        nettle/buffer-init.c
+        nettle/camellia-crypt-internal.c
+        nettle/camellia-table.c
+        nettle/camellia-absorb.c
+        nettle/camellia-invert-key.c
+        nettle/camellia128-set-encrypt-key.c
+        nettle/camellia128-crypt.c
+        nettle/camellia128-set-decrypt-key.c
+        nettle/camellia128-meta.c
+        nettle/camellia192-meta.c
+        nettle/camellia256-set-encrypt-key.c
+        nettle/camellia256-crypt.c
+        nettle/camellia256-set-decrypt-key.c
+        nettle/camellia256-meta.c
+        nettle/cast128.c
+        nettle/cast128-meta.c
+        nettle/cbc.c
+        nettle/cbc-aes128-encrypt.c
+        nettle/cbc-aes192-encrypt.c
+        nettle/cbc-aes256-encrypt.c
+        nettle/ccm.c
+        nettle/ccm-aes128.c
+        nettle/ccm-aes192.c
+        nettle/ccm-aes256.c
+        nettle/cfb.c
+        nettle/siv-cmac.c
+        nettle/siv-cmac-aes128.c
+        nettle/siv-cmac-aes256.c
+        nettle/cnd-memcpy.c
+        nettle/chacha-crypt.c
+        nettle/chacha-core-internal.c
+        nettle/chacha-poly1305.c
+        nettle/chacha-poly1305-meta.c
+        nettle/chacha-set-key.c
+        nettle/chacha-set-nonce.c
+        nettle/ctr.c
+        nettle/ctr16.c
+        nettle/des.c
+        nettle/des3.c
+        nettle/eax.c
+        nettle/eax-aes128.c
+        nettle/eax-aes128-meta.c
+        nettle/ghash-set-key.c
+        nettle/ghash-update.c
+        nettle/gcm.c
+        nettle/gcm-aes.c
+        nettle/gcm-aes128.c
+        nettle/gcm-aes128-meta.c
+        nettle/gcm-aes192.c
+        nettle/gcm-aes192-meta.c
+        nettle/gcm-aes256.c
+        nettle/gcm-aes256-meta.c
+        nettle/gcm-camellia128.c
+        nettle/gcm-camellia128-meta.c
+        nettle/gcm-camellia256.c
+        nettle/gcm-camellia256-meta.c
+        nettle/cmac.c
+        nettle/cmac64.c
+        nettle/cmac-aes128.c
+        nettle/cmac-aes256.c
+        nettle/cmac-des3.c
+        nettle/cmac-aes128-meta.c
+        nettle/cmac-aes256-meta.c
+        nettle/cmac-des3-meta.c
+        nettle/gost28147.c
+        nettle/gosthash94.c
+        nettle/gosthash94-meta.c
+        nettle/hmac.c
+        nettle/hmac-gosthash94.c
+        nettle/hmac-md5.c
+        nettle/hmac-ripemd160.c
+        nettle/hmac-sha1.c
+        nettle/hmac-sha224.c
+        nettle/hmac-sha256.c
+        nettle/hmac-sha384.c
+        nettle/hmac-sha512.c
+        nettle/hmac-streebog.c
+        nettle/hmac-sm3.c
+        nettle/hmac-md5-meta.c
+        nettle/hmac-ripemd160-meta.c
+        nettle/hmac-sha1-meta.c
+        nettle/hmac-sha224-meta.c
+        nettle/hmac-sha256-meta.c
+        nettle/hmac-sha384-meta.c
+        nettle/hmac-sha512-meta.c
+        nettle/hmac-streebog-meta.c
+        nettle/hmac-sm3-meta.c
+        nettle/knuth-lfib.c
+        nettle/hkdf.c
+        nettle/md2.c
+        nettle/md2-meta.c
+        nettle/md4.c
+        nettle/md4-meta.c
+        nettle/md5.c
+        nettle/md5-compress.c
+        nettle/md5-compat.c
+        nettle/md5-meta.c
+        nettle/memeql-sec.c
+        nettle/memxor.c
+        nettle/memxor3.c
+        nettle/nettle-lookup-hash.c
+        nettle/nettle-meta-aeads.c
+        nettle/nettle-meta-armors.c
+        nettle/nettle-meta-ciphers.c
+        nettle/nettle-meta-hashes.c
+        nettle/nettle-meta-macs.c
+        nettle/pbkdf2.c
+        nettle/pbkdf2-hmac-gosthash94.c
+        nettle/pbkdf2-hmac-sha1.c
+        nettle/pbkdf2-hmac-sha256.c
+        nettle/pbkdf2-hmac-sha384.c
+        nettle/pbkdf2-hmac-sha512.c
+        nettle/poly1305-aes.c
+        nettle/poly1305-internal.c
+        nettle/realloc.c
+        nettle/ripemd160.c
+        nettle/ripemd160-compress.c
+        nettle/ripemd160-meta.c
+        nettle/salsa20-core-internal.c
+        nettle/salsa20-crypt-internal.c
+        nettle/salsa20-crypt.c
+        nettle/salsa20r12-crypt.c
+        nettle/salsa20-set-key.c
+        nettle/salsa20-set-nonce.c
+        nettle/salsa20-128-set-key.c
+        nettle/salsa20-256-set-key.c
+        nettle/sha1.c
+        nettle/sha1-compress.c
+        nettle/sha1-meta.c
+        nettle/sha256.c
+        nettle/sha256-compress.c
+        nettle/sha224-meta.c
+        nettle/sha256-meta.c
+        nettle/sha512.c
+        nettle/sha512-compress.c
+        nettle/sha384-meta.c
+        nettle/sha512-meta.c
+        nettle/sha512-224-meta.c
+        nettle/sha512-256-meta.c
+        nettle/sha3.c
+        nettle/sha3-permute.c
+        nettle/sha3-224.c
+        nettle/sha3-224-meta.c
+        nettle/sha3-256.c
+        nettle/sha3-256-meta.c
+        nettle/sha3-384.c
+        nettle/sha3-384-meta.c
+        nettle/sha3-512.c
+        nettle/sha3-512-meta.c
+        nettle/shake256.c
+        nettle/sm3.c
+        nettle/sm3-meta.c
+        nettle/serpent-set-key.c
+        nettle/serpent-encrypt.c
+        nettle/serpent-decrypt.c
+        nettle/serpent-meta.c
+        nettle/streebog.c
+        nettle/streebog-meta.c
+        nettle/twofish.c
+        nettle/twofish-meta.c
+        nettle/umac-nh.c
+        nettle/umac-nh-n.c
+        nettle/umac-l2.c
+        nettle/umac-l3.c
+        nettle/umac-poly64.c
+        nettle/umac-poly128.c
+        nettle/umac-set-key.c
+        nettle/umac32.c
+        nettle/umac64.c
+        nettle/umac96.c
+        nettle/umac128.c
+        nettle/version.c
+        nettle/write-be32.c
+        nettle/write-le32.c
+        nettle/write-le64.c
+        nettle/yarrow256.c
+        nettle/yarrow_key_event.c
+        nettle/xts.c
+        nettle/xts-aes128.c
+        nettle/xts-aes256.c
+        )
+
+set(LIBNETTLE_INCLUDES
+        ${CMAKE_CURRENT_SOURCE_DIR}
+        ${CMAKE_CURRENT_SOURCE_DIR}/nettle
+        )
+
+add_library(nettle STATIC ${LIBNETTLE_SOURCES})
+target_include_directories(nettle PUBLIC ${LIBNETTLE_INCLUDES})
+target_compile_definitions(nettle PRIVATE ${LIBNETTLE_DEFINITIONS})

app/src/main/cpp/nettle/config.h

@@ -0,0 +1,275 @@
+/* config.h.  Generated from config.h.in by configure.  */
+/* config.h.in.  Generated from configure.ac by autoheader.  */
+
+/* Define if building universal (internal helper macro) */
+/* #undef AC_APPLE_UNIVERSAL_BUILD */
+
+/* Define to 1 if using 'alloca.c'. */
+/* #undef C_ALLOCA */
+
+/* Define to 1 if you have 'alloca', as a function or macro. */
+#define HAVE_ALLOCA 1
+
+/* Define to 1 if <alloca.h> works. */
+#define HAVE_ALLOCA_H 1
+
+/* Define if __builtin_bswap64 is available */
+#define HAVE_BUILTIN_BSWAP64 1
+
+/* Define if clock_gettime is available */
+#define HAVE_CLOCK_GETTIME 1
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#define HAVE_DLFCN_H 1
+
+/* Define if fcntl file locking is available */
+#define HAVE_FCNTL_LOCKING 1
+
+/* Define if the compiler understands __attribute__ */
+#define HAVE_GCC_ATTRIBUTE 1
+
+/* Define to 1 if you have the `getline' function. */
+#define HAVE_GETLINE 1
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#define HAVE_INTTYPES_H 1
+
+/* Define to 1 if you have dlopen (with -ldl). */
+#define HAVE_LIBDL 1
+
+/* Define to 1 if you have the `gmp' library (-lgmp). */
+/* #undef HAVE_LIBGMP */
+
+/* Define if compiler and linker supports __attribute__ ifunc */
+#define HAVE_LINK_IFUNC 1
+
+/* Define to 1 if you have the <malloc.h> header file. */
+#define HAVE_MALLOC_H 1
+
+/* Define to 1 each of the following for which a native (ie. CPU specific)
+    implementation of the corresponding routine exists.  */
+/* #undef HAVE_NATIVE_memxor3 */
+/* #undef HAVE_NATIVE_aes_decrypt */
+/* #undef HAVE_NATIVE_aes_encrypt */
+/* #undef HAVE_NATIVE_aes128_decrypt */
+/* #undef HAVE_NATIVE_aes128_encrypt */
+/* #undef HAVE_NATIVE_aes128_invert_key */
+/* #undef HAVE_NATIVE_aes128_set_decrypt_key */
+/* #undef HAVE_NATIVE_aes128_set_encrypt_key */
+/* #undef HAVE_NATIVE_aes192_decrypt */
+/* #undef HAVE_NATIVE_aes192_encrypt */
+/* #undef HAVE_NATIVE_aes192_invert_key */
+/* #undef HAVE_NATIVE_aes192_set_decrypt_key */
+/* #undef HAVE_NATIVE_aes192_set_encrypt_key */
+/* #undef HAVE_NATIVE_aes256_decrypt */
+/* #undef HAVE_NATIVE_aes256_encrypt */
+/* #undef HAVE_NATIVE_aes256_invert_key */
+/* #undef HAVE_NATIVE_aes256_set_decrypt_key */
+/* #undef HAVE_NATIVE_aes256_set_encrypt_key */
+/* #undef HAVE_NATIVE_cbc_aes128_encrypt */
+/* #undef HAVE_NATIVE_cbc_aes192_encrypt */
+/* #undef HAVE_NATIVE_cbc_aes256_encrypt */
+/* #undef HAVE_NATIVE_chacha_core */
+/* #undef HAVE_NATIVE_chacha_2core */
+/* #undef HAVE_NATIVE_chacha_3core */
+/* #undef HAVE_NATIVE_chacha_4core */
+/* #undef HAVE_NATIVE_fat_chacha_2core */
+/* #undef HAVE_NATIVE_fat_chacha_3core */
+/* #undef HAVE_NATIVE_fat_chacha_4core */
+/* #undef HAVE_NATIVE_ecc_curve25519_modp */
+/* #undef HAVE_NATIVE_ecc_curve448_modp */
+/* #undef HAVE_NATIVE_ecc_secp192r1_modp */
+/* #undef HAVE_NATIVE_ecc_secp192r1_redc */
+/* #undef HAVE_NATIVE_ecc_secp224r1_modp */
+/* #undef HAVE_NATIVE_ecc_secp224r1_redc */
+/* #undef HAVE_NATIVE_ecc_secp256r1_modp */
+/* #undef HAVE_NATIVE_ecc_secp256r1_redc */
+/* #undef HAVE_NATIVE_ecc_secp384r1_modp */
+/* #undef HAVE_NATIVE_ecc_secp384r1_redc */
+/* #undef HAVE_NATIVE_ecc_secp521r1_modp */
+/* #undef HAVE_NATIVE_ecc_secp521r1_redc */
+/* #undef HAVE_NATIVE_ghash_set_key */
+/* #undef HAVE_NATIVE_ghash_update */
+/* #undef HAVE_NATIVE_salsa20_core */
+/* #undef HAVE_NATIVE_salsa20_2core */
+/* #undef HAVE_NATIVE_fat_salsa20_2core */
+/* #undef HAVE_NATIVE_sha1_compress */
+/* #undef HAVE_NATIVE_sha256_compress */
+/* #undef HAVE_NATIVE_sha512_compress */
+/* #undef HAVE_NATIVE_sha3_permute */
+/* #undef HAVE_NATIVE_umac_nh */
+/* #undef HAVE_NATIVE_umac_nh_n */
+
+/* Define to 1 if you have the <openssl/ecdsa.h> header file. */
+/* #undef HAVE_OPENSSL_ECDSA_H */
+
+/* Define to 1 if you have the <openssl/evp.h> header file. */
+/* #undef HAVE_OPENSSL_EVP_H */
+
+/* Define to 1 if you have the `secure_getenv' function. */
+/* #undef HAVE_SECURE_GETENV */
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#define HAVE_STDINT_H 1
+
+/* Define to 1 if you have the <stdio.h> header file. */
+#define HAVE_STDIO_H 1
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#define HAVE_STDLIB_H 1
+
+/* Define to 1 if you have the `strerror' function. */
+#define HAVE_STRERROR 1
+
+/* Define to 1 if you have the <strings.h> header file. */
+#define HAVE_STRINGS_H 1
+
+/* Define to 1 if you have the <string.h> header file. */
+#define HAVE_STRING_H 1
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#define HAVE_SYS_STAT_H 1
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#define HAVE_SYS_TIME_H 1
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#define HAVE_SYS_TYPES_H 1
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#define HAVE_UNISTD_H 1
+
+/* Define to 1 if you have the <valgrind/memcheck.h> header file. */
+/* #undef HAVE_VALGRIND_MEMCHECK_H */
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT "nettle-bugs@lists.lysator.liu.se"
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "nettle"
+
+/* Define to the full name and version of this package. */
+#define PACKAGE_STRING "nettle 3.8.1"
+
+/* Define to the one symbol short name of this package. */
+#define PACKAGE_TARNAME "nettle"
+
+/* Define to the home page for this package. */
+#define PACKAGE_URL ""
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "3.8.1"
+
+/* The size of `long', as computed by sizeof. */
+#define SIZEOF_LONG __SIZEOF_LONG__
+
+/* The size of `size_t', as computed by sizeof. */
+#define SIZEOF_SIZE_T __SIZEOF_SIZE_T__
+
+/* If using the C implementation of alloca, define if you know the
+   direction of stack growth for your system; otherwise it will be
+   automatically deduced at runtime.
+	STACK_DIRECTION > 0 => grows toward higher addresses
+	STACK_DIRECTION < 0 => grows toward lower addresses
+	STACK_DIRECTION = 0 => direction of growth unknown */
+/* #undef STACK_DIRECTION */
+
+/* Define to 1 if all of the C90 standard headers exist (not just the ones
+   required in a freestanding environment). This macro is provided for
+   backward compatibility; new code need not use it. */
+#define STDC_HEADERS 1
+
+/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. This
+   macro is obsolete. */
+#define TIME_WITH_SYS_TIME 1
+
+/* Defined if public key features are enabled */
+/* #undef WITH_HOGWEED */
+
+/* Define if you have openssl's libcrypto (used for benchmarking) */
+/* #undef WITH_OPENSSL */
+
+/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
+   significant byte first (like Motorola and SPARC, unlike Intel). */
+#if defined AC_APPLE_UNIVERSAL_BUILD
+# if defined __BIG_ENDIAN__
+#  define WORDS_BIGENDIAN 1
+# endif
+#else
+# ifndef WORDS_BIGENDIAN
+/* #  undef WORDS_BIGENDIAN */
+# endif
+#endif
+
+/* Define to empty if `const' does not conform to ANSI C. */
+/* #undef const */
+
+/* Define to `int' if <sys/types.h> doesn't define. */
+/* #undef gid_t */
+
+/* Define to `__inline__' or `__inline' if that's what the C compiler
+   calls it, or to nothing if 'inline' is not supported under any name.  */
+#ifndef __cplusplus
+/* #undef inline */
+#endif
+
+/* Define to `unsigned int' if <sys/types.h> does not define. */
+/* #undef size_t */
+
+/* Define to `int' if <sys/types.h> doesn't define. */
+/* #undef uid_t */
+
+/* AIX requires this to be the first thing in the file.  */
+#ifndef __GNUC__
+# if HAVE_ALLOCA_H
+#  include <alloca.h>
+# else
+#  ifdef _AIX
+ #pragma alloca
+#  else
+#   ifndef alloca /* predefined by HP cc +Olibcalls */
+char *alloca ();
+#   endif
+#  endif
+/* Needed for alloca on windows */
+#  if HAVE_MALLOC_H
+#   include <malloc.h>
+#  endif
+# endif
+#else /* defined __GNUC__ */
+# if HAVE_ALLOCA_H
+#  include <alloca.h>
+# else
+/* Needed for alloca on windows, also with gcc */
+#  if HAVE_MALLOC_H
+#   include <malloc.h>
+#  endif
+# endif
+#endif
+
+
+#if HAVE_STRERROR
+#define STRERROR strerror
+#else
+#define STRERROR(x) (sys_errlist[x])
+#endif
+
+
+#if __GNUC__ && HAVE_GCC_ATTRIBUTE
+# define NORETURN __attribute__ ((__noreturn__))
+# define PRINTF_STYLE(f, a) __attribute__ ((__format__ (__printf__, f, a)))
+# define UNUSED __attribute__ ((__unused__))
+#else
+# define NORETURN
+# define PRINTF_STYLE(f, a)
+# define UNUSED
+#endif
+
+
+#if defined(__x86_64__) || defined(__arch64__)
+# define HAVE_NATIVE_64_BIT 1
+#else
+/* Needs include of <limits.h> before use. */
+# define HAVE_NATIVE_64_BIT (SIZEOF_LONG * CHAR_BIT >= 64)
+#endif
+

app/src/main/cpp/nettle/keymap.h

@@ -0,0 +1 @@
+ 

app/src/main/cpp/nettle/rotors.h

@@ -0,0 +1 @@
+ 

app/src/main/cpp/nettle/version.h

@@ -0,0 +1,64 @@
+/* version.h
+
+   Information about library version.
+
+   Copyright (C) 2015 Red Hat, Inc.
+   Copyright (C) 2015 Niels Möller
+
+   This file is part of GNU Nettle.
+
+   GNU Nettle is free software: you can redistribute it and/or
+   modify it under the terms of either:
+
+     * the GNU Lesser General Public License as published by the Free
+       Software Foundation; either version 3 of the License, or (at your
+       option) any later version.
+
+   or
+
+     * the GNU General Public License as published by the Free
+       Software Foundation; either version 2 of the License, or (at your
+       option) any later version.
+
+   or both in parallel, as here.
+
+   GNU Nettle is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received copies of the GNU General Public License and
+   the GNU Lesser General Public License along with this program.  If
+   not, see http://www.gnu.org/licenses/.
+*/
+
+#ifndef NETTLE_VERSION_H_INCLUDED
+#define NETTLE_VERSION_H_INCLUDED
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Individual version numbers in decimal */
+#define NETTLE_VERSION_MAJOR 3
+#define NETTLE_VERSION_MINOR 8
+
+#define NETTLE_USE_MINI_GMP 0
+
+/* We need a preprocessor constant for GMP_NUMB_BITS, simply using
+   sizeof(mp_limb_t) * CHAR_BIT is not good enough. */
+#if NETTLE_USE_MINI_GMP
+# define GMP_NUMB_BITS n/a
+#endif
+
+int
+nettle_version_major (void);
+
+int
+nettle_version_minor (void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* NETTLE_VERSION_H_INCLUDED */

app/src/main/java/androidx/navigation/ui/NavigationUI.kt

@@ -0,0 +1,40 @@
+package androidx.navigation.ui
+
+import android.view.MenuItem
+import androidx.annotation.IdRes
+import androidx.navigation.ActivityNavigator
+import androidx.navigation.NavController
+import androidx.navigation.NavDestination
+import androidx.navigation.NavDestination.Companion.hierarchy
+import androidx.navigation.NavOptions
+
+fun onNavDestinationSelected2(item: MenuItem, navController: NavController): Boolean {
+    if (navController.currentDestination?.matchDestination(item.itemId) == true) return true
+    val builder = NavOptions.Builder().setLaunchSingleTop(true)
+    if (
+        navController.currentDestination!!.parent!!.findNode(item.itemId)
+                is ActivityNavigator.Destination
+    ) {
+        builder.setEnterAnim(R.anim.nav_default_enter_anim)
+            .setExitAnim(R.anim.nav_default_exit_anim)
+            .setPopEnterAnim(R.anim.nav_default_pop_enter_anim)
+            .setPopExitAnim(R.anim.nav_default_pop_exit_anim)
+    } else {
+        builder.setEnterAnim(com.hippo.ehviewer.R.anim.scene_open_enter)
+            .setExitAnim(com.hippo.ehviewer.R.anim.scene_open_exit)
+            .setPopEnterAnim(com.hippo.ehviewer.R.anim.scene_close_enter)
+            .setPopExitAnim(com.hippo.ehviewer.R.anim.scene_close_exit)
+    }
+    val options = builder.build()
+    return try {
+        // TODO provide proper API instead of using Exceptions as Control-Flow.
+        navController.navigate(item.itemId, null, options)
+        // Return true only if the destination we've navigated to matches the MenuItem
+        navController.currentDestination?.matchDestination(item.itemId) == true
+    } catch (e: IllegalArgumentException) {
+        false
+    }
+}
+
+fun NavDestination.matchDestination(@IdRes destId: Int): Boolean =
+    hierarchy.any { it.id == destId }

app/src/main/java/androidx/swiperefreshlayout/widget/ThemedSwipeRefreshLayout.kt

@@ -0,0 +1,25 @@
+package androidx.swiperefreshlayout.widget
+
+import android.annotation.SuppressLint
+import android.content.Context
+import android.graphics.drawable.ShapeDrawable
+import android.util.AttributeSet
+import androidx.core.graphics.ColorUtils
+import rikka.core.res.resolveColor
+
+
+@SuppressLint("PrivateResource")
+class ThemedSwipeRefreshLayout @JvmOverloads constructor(
+    context: Context, attrs: AttributeSet? = null
+) : SwipeRefreshLayout(context, attrs) {
+
+    init {
+        val surfaceColor =
+            context.theme.resolveColor(com.google.android.material.R.attr.colorSurface)
+        val overlayColor =
+            context.getColor(com.google.android.material.R.color.m3_popupmenu_overlay_color)
+        val backgroundColor = ColorUtils.compositeColors(overlayColor, surfaceColor)
+        (mCircleView.background as ShapeDrawable).paint.color = backgroundColor
+        setColorSchemeColors(context.theme.resolveColor(com.google.android.material.R.attr.colorAccent))
+    }
+}

app/src/main/java/coil/decode/DecodeUtils.kt

@@ -0,0 +1,66 @@
+@file:JvmName("GifDecodeUtils")
+
+package coil.decode
+
+import kotlin.experimental.and
+import okio.BufferedSource
+import okio.ByteString.Companion.encodeUtf8
+
+// https://www.matthewflickinger.com/lab/whatsinagif/bits_and_bytes.asp
+private val GIF_HEADER_87A = "GIF87a".encodeUtf8()
+private val GIF_HEADER_89A = "GIF89a".encodeUtf8()
+
+// https://developers.google.com/speed/webp/docs/riff_container
+private val WEBP_HEADER_RIFF = "RIFF".encodeUtf8()
+private val WEBP_HEADER_WEBP = "WEBP".encodeUtf8()
+private val WEBP_HEADER_VPX8 = "VP8X".encodeUtf8()
+
+// https://nokiatech.github.io/heif/technical.html
+private val HEIF_HEADER_FTYP = "ftyp".encodeUtf8()
+private val HEIF_HEADER_MSF1 = "msf1".encodeUtf8()
+private val HEIF_HEADER_HEVC = "hevc".encodeUtf8()
+private val HEIF_HEADER_HEVX = "hevx".encodeUtf8()
+
+/**
+ * Return 'true' if the [source] contains a GIF image. The [source] is not consumed.
+ */
+fun DecodeUtils.isGif(source: BufferedSource): Boolean {
+    return source.rangeEquals(0, GIF_HEADER_89A) ||
+        source.rangeEquals(0, GIF_HEADER_87A)
+}
+
+/**
+ * Return 'true' if the [source] contains a WebP image. The [source] is not consumed.
+ */
+fun DecodeUtils.isWebP(source: BufferedSource): Boolean {
+    return source.rangeEquals(0, WEBP_HEADER_RIFF) &&
+        source.rangeEquals(8, WEBP_HEADER_WEBP)
+}
+
+/**
+ * Return 'true' if the [source] contains an animated WebP image. The [source] is not consumed.
+ */
+fun DecodeUtils.isAnimatedWebP(source: BufferedSource): Boolean {
+    return isWebP(source) &&
+        source.rangeEquals(12, WEBP_HEADER_VPX8) &&
+        source.request(17) &&
+        (source.buffer[16] and 0b00000010) > 0
+}
+
+/**
+ * Return 'true' if the [source] contains an HEIF image. The [source] is not consumed.
+ */
+fun DecodeUtils.isHeif(source: BufferedSource): Boolean {
+    return source.rangeEquals(4, HEIF_HEADER_FTYP)
+}
+
+/**
+ * Return 'true' if the [source] contains an animated HEIF image sequence. The [source] is not
+ * consumed.
+ */
+fun DecodeUtils.isAnimatedHeif(source: BufferedSource): Boolean {
+    return isHeif(source) &&
+        (source.rangeEquals(8, HEIF_HEADER_MSF1) ||
+            source.rangeEquals(8, HEIF_HEADER_HEVC) ||
+            source.rangeEquals(8, HEIF_HEADER_HEVX))
+}

app/src/main/java/coil/decode/FrameDelayRewritingSource.kt

@@ -0,0 +1,88 @@
+@file:Suppress("SameParameterValue")
+
+package coil.decode
+
+import okio.Buffer
+import okio.ByteString
+import okio.ByteString.Companion.decodeHex
+import okio.ForwardingSource
+import okio.Source
+
+/**
+ * A [ForwardingSource] that rewrites the GIF frame delay in every graphics control block if it's
+ * below a threshold.
+ */
+internal class FrameDelayRewritingSource(delegate: Source) : ForwardingSource(delegate) {
+
+    // An intermediary buffer so we can read and alter the data before it's written to the destination.
+    private val buffer = Buffer()
+
+    override fun read(sink: Buffer, byteCount: Long): Long {
+        // Ensure our buffer has enough bytes to satisfy this read.
+        request(byteCount)
+
+        // Short circuit if there are no bytes in the buffer.
+        if (buffer.size == 0L) {
+            return if (byteCount == 0L) 0L else -1L
+        }
+
+        // Search through the buffer and rewrite any frame delays below the threshold.
+        var bytesWritten = 0L
+        while (true) {
+            val index = indexOf(FRAME_DELAY_START_MARKER)
+            if (index == -1L) break
+
+            // Write up until the end of the frame delay start marker.
+            bytesWritten += write(sink, index + FRAME_DELAY_START_MARKER_SIZE_BYTES)
+
+            // Check for the end of the graphics control extension block.
+            if (!request(5) || buffer[4] != 0.toByte()) continue
+
+            // Rewrite the frame delay if it is below the threshold.
+            // The frame delay is stored as two unsigned bytes in reverse order
+            // (i.e. the most significant bits are in the byte that's read second).
+            val frameDelay = (buffer[2].toUByte().toInt() shl 8) or buffer[1].toUByte().toInt()
+            if (frameDelay < MINIMUM_FRAME_DELAY) {
+                sink.writeByte(buffer[0].toInt())
+                sink.writeByte(DEFAULT_FRAME_DELAY)
+                sink.writeByte(0)
+                buffer.skip(3)
+            }
+        }
+
+        // Write anything left in the source.
+        if (bytesWritten < byteCount) {
+            bytesWritten += write(sink, byteCount - bytesWritten)
+        }
+        return if (bytesWritten == 0L) -1 else bytesWritten
+    }
+
+    private fun indexOf(bytes: ByteString): Long {
+        var index = -1L
+        while (true) {
+            index = buffer.indexOf(bytes[0], index + 1)
+            if (index == -1L) break
+            if (request(bytes.size.toLong()) && buffer.rangeEquals(index, bytes)) break
+        }
+        return index
+    }
+
+    private fun write(sink: Buffer, byteCount: Long): Long {
+        return buffer.read(sink, byteCount).coerceAtLeast(0)
+    }
+
+    private fun request(byteCount: Long): Boolean {
+        if (buffer.size >= byteCount) return true
+        val toRead = byteCount - buffer.size
+        return super.read(buffer, toRead) == toRead
+    }
+
+    private companion object {
+        // https://www.matthewflickinger.com/lab/whatsinagif/bits_and_bytes.asp
+        // See: "Graphics Control Extension"
+        private val FRAME_DELAY_START_MARKER = "0021F904".decodeHex()
+        private const val FRAME_DELAY_START_MARKER_SIZE_BYTES = 4
+        private const val MINIMUM_FRAME_DELAY = 2
+        private const val DEFAULT_FRAME_DELAY = 10
+    }
+}

app/src/main/java/com/davemorrissey/labs/subscaleview/ImageSource.kt

@@ -0,0 +1,111 @@
+package com.davemorrissey.labs.subscaleview
+
+import android.graphics.Bitmap
+import android.graphics.Rect
+import com.davemorrissey.labs.subscaleview.provider.InputProvider
+
+/**
+ * Helper class used to set the source and additional attributes from a variety of sources. Supports
+ * use of a bitmap, asset, resource, external file or any other URI.
+ *
+ *
+ * When you are using a preview image, you must set the dimensions of the full size image on the
+ * ImageSource object for the full size image using the [.dimensions] method.
+ */
+class ImageSource {
+    val bitmap: Bitmap?
+    val provider: InputProvider?
+
+    private var sWidth = 0
+    private var sHeight = 0
+
+    var sRegion = Rect(0, 0, 0, 0)
+        private set
+    var isCached = false
+        private set
+
+    private constructor(bitmap: Bitmap, cached: Boolean) {
+        this.bitmap = bitmap
+        provider = null
+        sWidth = bitmap.width
+        sHeight = bitmap.height
+        isCached = cached
+    }
+
+    private constructor(provider: InputProvider) {
+        bitmap = null
+        this.provider = provider
+    }
+
+    /**
+     * Use a region of the source image. Region must be set independently for the full size image and the preview if
+     * you are using one.
+     *
+     * @param sRegion the region of the source image to be displayed.
+     * @return this instance for chaining.
+     */
+    fun region(sRegion: Rect): ImageSource {
+        this.sRegion = sRegion
+        setInvariants()
+        return this
+    }
+
+    /**
+     * Declare the dimensions of the image. This is only required for a full size image, when you are specifying a URI
+     * and also a preview image. When displaying a bitmap object, or not using a preview, you do not need to declare
+     * the image dimensions. Note if the declared dimensions are found to be incorrect, the view will reset.
+     *
+     * @param sWidth  width of the source image.
+     * @param sHeight height of the source image.
+     * @return this instance for chaining.
+     */
+    fun dimensions(sWidth: Int, sHeight: Int): ImageSource {
+        if (bitmap == null) {
+            this.sWidth = sWidth
+            this.sHeight = sHeight
+        }
+        setInvariants()
+        return this
+    }
+
+    private fun setInvariants() {
+        if (!sRegion.isEmpty) {
+            sWidth = sRegion.width()
+            sHeight = sRegion.height()
+        }
+    }
+
+    companion object {
+        /**
+         * Create an instance from an input provider.
+         *
+         * @param provider input stream provider.
+         * @return an [ImageSource] instance.
+         */
+        fun provider(provider: InputProvider): ImageSource {
+            return ImageSource(provider)
+        }
+
+        /**
+         * Provide a loaded bitmap for display.
+         *
+         * @param bitmap bitmap to be displayed.
+         * @return an [ImageSource] instance.
+         */
+        fun bitmap(bitmap: Bitmap): ImageSource {
+            return ImageSource(bitmap, false)
+        }
+
+        /**
+         * Provide a loaded and cached bitmap for display. This bitmap will not be recycled when it is no
+         * longer needed. Use this method if you loaded the bitmap with an image loader such as Picasso
+         * or Volley.
+         *
+         * @param bitmap bitmap to be displayed.
+         * @return an [ImageSource] instance.
+         */
+        fun cachedBitmap(bitmap: Bitmap): ImageSource {
+            return ImageSource(bitmap, true)
+        }
+    }
+}

app/src/main/java/com/davemorrissey/labs/subscaleview/ImageViewState.kt

@@ -0,0 +1,15 @@
+package com.davemorrissey.labs.subscaleview
+
+import android.graphics.PointF
+import java.io.Serializable
+
+/**
+ * Wraps the scale, center and orientation of a displayed image for easy restoration on screen rotate.
+ */
+class ImageViewState(val scale: Float, center: PointF) : Serializable {
+    private val centerX: Float = center.x
+    private val centerY: Float = center.y
+
+    val center: PointF
+        get() = PointF(centerX, centerY)
+}

app/src/main/java/com/davemorrissey/labs/subscaleview/decoder/Decoder.kt

@@ -0,0 +1,53 @@
+package com.davemorrissey.labs.subscaleview.decoder
+
+import android.content.Context
+import android.graphics.Bitmap
+import android.graphics.Point
+import android.graphics.Rect
+import kotlin.Throws
+import com.davemorrissey.labs.subscaleview.provider.InputProvider
+import java.lang.Exception
+
+/**
+ * Interface for image decoding classes.
+ */
+interface Decoder {
+    /**
+     * Initialise the decoder. When possible, perform initial setup work once in this method. The
+     * dimensions of the image must be returned.
+     *
+     * @param context  Application context. A reference may be held, but must be cleared on recycle.
+     * @param provider Provider of the image.
+     * @return Dimensions of the image.
+     * @throws Exception if initialisation fails.
+     */
+    @Throws(Exception::class)
+    fun init(context: Context, provider: InputProvider): Point
+
+    /**
+     * Decode a region of the image with the given sample size. This method is called off the UI
+     * thread so it can safely load the image on the current thread. It is called from
+     * [android.os.AsyncTask]s running in an executor that may have multiple threads, so
+     * implementations must be thread safe. Adding `synchronized` to the method signature
+     * is the simplest way to achieve this, but bear in mind the [.recycle] method can be
+     * called concurrently.
+     *
+     * @param sRect      Source image rectangle to decode.
+     * @param sampleSize Sample size.
+     * @return The decoded region. It is safe to return null if decoding fails.
+     */
+    fun decodeRegion(sRect: Rect, sampleSize: Int): Bitmap
+
+    /**
+     * Status check. Should return false before initialisation and after recycle.
+     *
+     * @return true if the decoder is ready to be used.
+     */
+    val isReady: Boolean
+
+    /**
+     * This method will be called when the decoder is no longer required. It should clean up any
+     * resources still in use.
+     */
+    fun recycle()
+}

app/src/main/java/com/davemorrissey/labs/subscaleview/decoder/ImageDecoder.kt

@@ -0,0 +1,62 @@
+package com.davemorrissey.labs.subscaleview.decoder
+
+import android.content.Context
+import android.graphics.Bitmap
+import android.graphics.Point
+import android.graphics.Rect
+import com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView
+import com.davemorrissey.labs.subscaleview.provider.InputProvider
+
+class ImageDecoder @JvmOverloads constructor(
+    private val cropBorders: Boolean,
+    bitmapConfig: Bitmap.Config? = null
+) : Decoder {
+    init {
+        val globalBitmapConfig = SubsamplingScaleImageView.preferredBitmapConfig
+    }
+
+    /**
+     * Initialise the decoder. When possible, perform initial setup work once in this method. The
+     * dimensions of the image must be returned.
+     *
+     * @param context  Application context. A reference may be held, but must be cleared on recycle.
+     * @param provider Provider of the image.
+     * @return Dimensions of the image.
+     * @throws Exception if initialisation fails.
+     */
+    @Throws(Exception::class)
+    override fun init(context: Context, provider: InputProvider): Point {
+        TODO()
+    }
+
+    /**
+     * Decode a region of the image with the given sample size. This method is called off the UI
+     * thread so it can safely load the image on the current thread. It is called from
+     * [android.os.AsyncTask]s running in an executor that may have multiple threads, so
+     * implementations must be thread safe. Adding `synchronized` to the method signature
+     * is the simplest way to achieve this, but bear in mind the [.recycle] method can be
+     * called concurrently.
+     *
+     * @param sRect      Source image rectangle to decode.
+     * @param sampleSize Sample size.
+     * @return The decoded region. It is safe to return null if decoding fails.
+     */
+    override fun decodeRegion(sRect: Rect, sampleSize: Int): Bitmap {
+        TODO()
+    }
+
+    /**
+     * Status check. Should return false before initialisation and after recycle.
+     *
+     * @return true if the decoder is ready to be used.
+     */
+    override val isReady: Boolean = TODO()
+
+    /**
+     * This method will be called when the decoder is no longer required. It should clean up any
+     * resources still in use.
+     */
+    override fun recycle() {
+        TODO()
+    }
+}

app/src/main/java/com/davemorrissey/labs/subscaleview/provider/InputProvider.kt

@@ -0,0 +1,3 @@
+package com.davemorrissey.labs.subscaleview.provider
+
+interface InputProvider

app/src/main/java/com/hippo/Native.kt

@@ -0,0 +1,48 @@
+/*
+ * Copyright 2022 Tarsin Norbin
+ *
+ * This file is part of EhViewer
+ *
+ * EhViewer is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * EhViewer is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with EhViewer.
+ * If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.hippo
+
+import android.os.ParcelFileDescriptor
+import java.io.FileDescriptor
+
+object Native {
+    fun initialize() {
+        System.loadLibrary("ehviewer")
+    }
+
+    @JvmStatic
+    external fun getFd(fd: FileDescriptor?): Int
+
+    @JvmStatic
+    external fun sendfile(from: Int, to: Int)
+}
+
+val FileDescriptor.fd
+    get() = Native.getFd(this)
+
+infix fun ParcelFileDescriptor.receivefrom(fd: FileDescriptor) {
+    Native.sendfile(fd.fd, getFd())
+}
+
+infix fun ParcelFileDescriptor.copyTo(fd: FileDescriptor) {
+    Native.sendfile(getFd(), fd.fd)
+}
+
+infix fun ParcelFileDescriptor.copyTo(fd: ParcelFileDescriptor) {
+    Native.sendfile(getFd(), fd.fd)
+}

app/src/main/java/com/hippo/UriArchiveAccessor.kt

@@ -0,0 +1,69 @@
+/*
+ * Copyright 2022 Tarsin Norbin
+ *
+ * This file is part of EhViewer
+ *
+ * EhViewer is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * EhViewer is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with EhViewer.
+ * If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.hippo
+
+import android.content.Context
+import android.graphics.ImageDecoder
+import android.net.Uri
+import android.util.Log
+import com.hippo.image.Image
+import java.nio.ByteBuffer
+
+class UriArchiveAccessor(ctx: Context, private val uri: Uri) {
+    val pfd by lazy { ctx.contentResolver.openFileDescriptor(uri, "r")!! }
+    fun open(): Int {
+        Log.d(DEBUG_TAG, "Open archive $uri")
+        return openArchive(pfd.fd, pfd.statSize)
+    }
+
+    private external fun openArchive(fd: Int, size: Long): Int
+    private external fun extractToByteBuffer(index: Int): ByteBuffer?
+    external fun extractToFd(index: Int, fd: Int)
+    external fun getFilename(index: Int): String
+    external fun needPassword(): Boolean
+    external fun providePassword(str: String): Boolean
+    private external fun closeArchive()
+    fun close() {
+        closeArchive()
+        pfd.close()
+        Log.d(DEBUG_TAG, "Close archive $uri successfully!")
+    }
+
+    fun getImageSource(index: Int): Image.CloseableSource? {
+        val buffer = extractToByteBuffer(index)
+        buffer ?: return null
+        check(buffer.isDirect)
+        Image.rewriteGifSource(buffer)
+        val source = ImageDecoder.createSource(buffer)
+        return object : Image.CloseableSource {
+            override val source: ImageDecoder.Source
+                get() = source
+
+            override fun close() {
+                releaseByteBuffer(buffer)
+            }
+        }
+    }
+
+    companion object {
+        @JvmStatic
+        private external fun releaseByteBuffer(buffer: ByteBuffer)
+    }
+}
+
+private const val DEBUG_TAG = "UriArchiveAccessor"

app/src/main/java/com/hippo/app/BaseDialogBuilder.kt

@@ -0,0 +1,8 @@
+package com.hippo.app
+
+import android.content.Context
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
+
+open class BaseDialogBuilder constructor(
+    context: Context
+) : MaterialAlertDialogBuilder(context)

app/src/main/java/com/hippo/app/CheckBoxDialogBuilder.kt

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hippo.app
+
+import android.content.Context
+import android.view.LayoutInflater
+import android.widget.CheckBox
+import com.hippo.ehviewer.R
+
+class CheckBoxDialogBuilder constructor(
+    context: Context,
+    message: String?,
+    checkText: String?,
+    checked: Boolean
+) : BaseDialogBuilder(
+    context
+) {
+    private val mCheckBox: CheckBox
+    val isChecked: Boolean
+        get() = mCheckBox.isChecked
+
+    init {
+        val view = LayoutInflater.from(getContext()).inflate(R.layout.dialog_checkbox_builder, null)
+        setView(view)
+        setMessage(message)
+        mCheckBox = view.findViewById(R.id.checkbox)
+        mCheckBox.text = checkText
+        mCheckBox.isChecked = checked
+        view.setOnClickListener { mCheckBox.toggle() }
+    }
+}

app/src/main/java/com/hippo/app/EditTextDialogBuilder.kt

@@ -0,0 +1,71 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hippo.app
+
+import android.content.Context
+import android.content.DialogInterface
+import android.view.KeyEvent
+import android.view.LayoutInflater
+import android.widget.EditText
+import android.widget.TextView
+import android.widget.TextView.OnEditorActionListener
+import androidx.appcompat.app.AlertDialog
+import com.google.android.material.textfield.TextInputLayout
+import com.hippo.ehviewer.R
+
+class EditTextDialogBuilder constructor(
+    context: Context,
+    text: String?,
+    hint: String?
+) : BaseDialogBuilder(
+    context
+), OnEditorActionListener {
+    private val mTextInputLayout: TextInputLayout
+    val editText: EditText
+    private var mDialog: AlertDialog? = null
+    val text: String
+        get() = editText.text.toString()
+
+    fun setError(error: CharSequence?) {
+        mTextInputLayout.error = error
+    }
+
+    override fun create(): AlertDialog {
+        mDialog = super.create()
+        return mDialog as AlertDialog
+    }
+
+    override fun onEditorAction(v: TextView?, p1: Int, event: KeyEvent?): Boolean {
+        return if (mDialog != null) {
+            val button = mDialog!!.getButton(DialogInterface.BUTTON_POSITIVE)
+            button?.performClick()
+            true
+        } else {
+            false
+        }
+    }
+
+    init {
+        val view = LayoutInflater.from(getContext()).inflate(R.layout.dialog_edittext_builder, null)
+        setView(view)
+        mTextInputLayout = view as TextInputLayout
+        editText = view.findViewById(R.id.edit_text)
+        editText.setText(text)
+        editText.setSelection(editText.text.length)
+        editText.setOnEditorActionListener(this)
+        mTextInputLayout.hint = hint
+    }
+}

app/src/main/java/com/hippo/app/HapticSlider.kt

@@ -0,0 +1,14 @@
+package com.hippo.app
+
+import android.content.Context
+import android.util.AttributeSet
+import android.view.HapticFeedbackConstants
+import com.google.android.material.slider.Slider
+
+class HapticSlider @JvmOverloads constructor(
+    context: Context, attrs: AttributeSet? = null
+) : Slider(context, attrs) {
+    init {
+        addOnChangeListener { _, _, _ -> performHapticFeedback(HapticFeedbackConstants.CLOCK_TICK) }
+    }
+}

app/src/main/java/com/hippo/app/ListCheckBoxDialogBuilder.kt

@@ -0,0 +1,63 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hippo.app
+
+import android.content.Context
+import android.view.LayoutInflater
+import android.view.View
+import android.widget.AdapterView
+import android.widget.ArrayAdapter
+import android.widget.CheckBox
+import android.widget.ListView
+import androidx.appcompat.app.AlertDialog
+import com.hippo.ehviewer.R
+import com.hippo.yorozuya.ViewUtils
+
+class ListCheckBoxDialogBuilder(
+    context: Context,
+    items: List<CharSequence>,
+    listener: (ListCheckBoxDialogBuilder?, AlertDialog?, Int) -> Unit,
+    checkText: String?,
+    checked: Boolean
+) : BaseDialogBuilder(
+    context
+) {
+    private val mCheckBox: CheckBox
+    private var mDialog: AlertDialog? = null
+    val isChecked: Boolean
+        get() = mCheckBox.isChecked
+
+    override fun create(): AlertDialog {
+        mDialog = super.create()
+        return mDialog as AlertDialog
+    }
+
+    init {
+        val view =
+            LayoutInflater.from(getContext()).inflate(R.layout.dialog_list_checkbox_builder, null)
+        setView(view)
+        val listView = ViewUtils.`$$`(view, R.id.list_view) as ListView
+        mCheckBox = ViewUtils.`$$`(view, R.id.checkbox) as CheckBox
+        listView.adapter = ArrayAdapter(getContext(), R.layout.item_select_dialog, items)
+        listView.onItemClickListener =
+            AdapterView.OnItemClickListener { _: AdapterView<*>?, _: View?, position: Int, _: Long ->
+                listener(this@ListCheckBoxDialogBuilder, mDialog, position)
+                mDialog?.dismiss()
+            }
+        mCheckBox.text = checkText
+        mCheckBox.isChecked = checked
+    }
+}

app/src/main/java/com/hippo/compat/SpiderInfoCompat.kt

@@ -0,0 +1,40 @@
+package com.hippo.compat
+
+import com.hippo.ehviewer.spider.SpiderInfo
+import com.hippo.yorozuya.IOUtils
+import java.io.InputStream
+
+fun readLegacySpiderInfo(inputStream: InputStream): SpiderInfo {
+    fun read(): String {
+        return IOUtils.readAsciiLine(inputStream)
+    }
+
+    fun readInt(): Int {
+        return read().toInt()
+    }
+
+    fun readLong(): Long {
+        return read().toLong()
+    }
+    repeat(2) { read() } // We assert that only info v2
+    val gid = readLong()
+    val token = read()
+    read()
+    val previewPages = readInt()
+    val previewPerPage = readInt()
+    val pages = read().toInt()
+    val pTokenMap = hashMapOf<Int, String>()
+    val info = SpiderInfo(gid, pages, pTokenMap, 0, token, previewPages, previewPerPage)
+    runCatching {
+        val line = read()
+        val pos = line.indexOf(" ")
+        if (pos > 0) {
+            val index = line.substring(0, pos).toInt()
+            val pToken = line.substring(pos + 1)
+            if (pToken.isNotEmpty()) {
+                pTokenMap[index] = pToken
+            }
+        }
+    }
+    return info
+}

app/src/main/java/com/hippo/database/MSQLiteBuilder.kt

@@ -0,0 +1,124 @@
+/*
+ * Copyright 2017 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hippo.database
+
+import android.content.Context
+import android.database.sqlite.SQLiteOpenHelper
+import android.util.SparseArray
+
+class MSQLiteBuilder {
+    companion object {
+        const val COLUMN_ID = "_id"
+        private val JAVA_TYPE_TO_SQLITE_TYPE: MutableMap<Class<*>?, String> = HashMap()
+        private fun javaTypeToSQLiteType(clazz: Class<*>?): String {
+            return JAVA_TYPE_TO_SQLITE_TYPE[clazz]
+                ?: throw IllegalStateException("Unknown type: $clazz")
+        }
+
+        init {
+            JAVA_TYPE_TO_SQLITE_TYPE[Boolean::class.javaPrimitiveType] =
+                "INTEGER NOT NULL DEFAULT 0"
+            JAVA_TYPE_TO_SQLITE_TYPE[Byte::class.javaPrimitiveType] =
+                "INTEGER NOT NULL DEFAULT 0"
+            JAVA_TYPE_TO_SQLITE_TYPE[Short::class.javaPrimitiveType] =
+                "INTEGER NOT NULL DEFAULT 0"
+            JAVA_TYPE_TO_SQLITE_TYPE[Int::class.javaPrimitiveType] = "INTEGER NOT NULL DEFAULT 0"
+            JAVA_TYPE_TO_SQLITE_TYPE[Long::class.javaPrimitiveType] =
+                "INTEGER NOT NULL DEFAULT 0"
+            JAVA_TYPE_TO_SQLITE_TYPE[Float::class.javaPrimitiveType] =
+                "REAL NOT NULL DEFAULT 0"
+            JAVA_TYPE_TO_SQLITE_TYPE[Double::class.javaPrimitiveType] = "REAL NOT NULL DEFAULT 0"
+            JAVA_TYPE_TO_SQLITE_TYPE[String::class.java] = "TEXT"
+        }
+    }
+
+    private val statementsMap = SparseArray<List<String>?>()
+    private var version = 0
+    private var statements: MutableList<String>? = null
+
+    /**
+     * Bump database version.
+     */
+    fun version(version: Int): MSQLiteBuilder {
+        check(version > this.version) {
+            ("New version must be bigger than current version. "
+                    + "current version: " + this.version + ", new version: " + version + ".")
+        }
+        this.version = version
+        statements = ArrayList()
+        statementsMap.put(version, statements)
+        return this
+    }
+    /**
+     * Creates a table.
+     */
+    /**
+     * Creates a table with int [.COLUMN_ID] primary key.
+     */
+    @JvmOverloads
+    fun createTable(
+        table: String,
+        column: String = COLUMN_ID,
+        clazz: Class<*>? = Int::class.javaPrimitiveType
+    ): MSQLiteBuilder {
+        return statement("CREATE TABLE " + table + " (" + column + " " + javaTypeToSQLiteType(clazz) + " PRIMARY KEY);")
+    }
+
+    /**
+     * Drops a table.
+     */
+    fun dropTable(table: String): MSQLiteBuilder {
+        return statement("DROP TABLE $table;")
+    }
+
+    /**
+     * Inserts a column to the table.
+     */
+    fun insertColumn(table: String, column: String, clazz: Class<*>?): MSQLiteBuilder {
+        return statement(
+            "ALTER TABLE $table ADD COLUMN $column " + javaTypeToSQLiteType(
+                clazz
+            ) + ";"
+        )
+    }
+
+    /**
+     * Add a statement.
+     */
+    fun statement(statement: String): MSQLiteBuilder {
+        check(!(version == 0 || statements == null)) { "Call version() first!" }
+        statements!!.add(statement)
+        return this
+    }
+
+    /**
+     * Build a SQLiteOpenHelper from it.
+     */
+    fun build(context: Context?, name: String?, version: Int): SQLiteOpenHelper {
+        return MSQLiteOpenHelper(context, name, version, this)
+    }
+
+    fun getStatements(oldVersion: Int, newVersion: Int): List<String> {
+        val result: MutableList<String> = ArrayList()
+        for (i in oldVersion + 1..newVersion) {
+            val list = statementsMap[i]
+            if (list != null) {
+                result.addAll(list)
+            }
+        }
+        return result
+    }
+}

app/src/main/java/com/hippo/database/MSQLiteOpenHelper.kt

@@ -0,0 +1,43 @@
+/*
+ * Copyright 2017 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hippo.database
+
+import android.content.Context
+import android.database.sqlite.SQLiteDatabase
+import android.database.sqlite.SQLiteOpenHelper
+import com.hippo.util.SqlUtils
+
+internal class MSQLiteOpenHelper(
+    context: Context?,
+    name: String?,
+    private val version: Int,
+    private val builder: MSQLiteBuilder
+) : SQLiteOpenHelper(context, name, null, version) {
+    override fun onCreate(db: SQLiteDatabase) {
+        onUpgrade(db, 0, version)
+    }
+
+    override fun onUpgrade(db: SQLiteDatabase, oldVersion: Int, newVersion: Int) {
+        for (command in builder.getStatements(oldVersion, newVersion)) {
+            db.execSQL(command)
+        }
+    }
+
+    override fun onDowngrade(db: SQLiteDatabase, oldVersion: Int, newVersion: Int) {
+        SqlUtils.dropAllTable(db)
+        onCreate(db)
+    }
+}

app/src/main/java/com/hippo/drawable/AddDeleteDrawable.java

@@ -0,0 +1,166 @@
+/*
+ * Copyright (C) 2015 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.drawable;
+
+import android.animation.ObjectAnimator;
+import android.content.Context;
+import android.content.res.Resources;
+import android.graphics.Canvas;
+import android.graphics.ColorFilter;
+import android.graphics.Paint;
+import android.graphics.Path;
+import android.graphics.PixelFormat;
+import android.graphics.Rect;
+import android.graphics.drawable.Drawable;
+
+import androidx.annotation.Keep;
+
+import com.hippo.ehviewer.R;
+import com.hippo.yorozuya.MathUtils;
+
+public class AddDeleteDrawable extends Drawable {
+
+    private final Paint mPaint = new Paint();
+    private final Path mPath = new Path();
+
+    private final int mSize;
+
+    private float mProgress;
+
+    private boolean mAutoUpdateMirror = false;
+    private boolean mVerticalMirror = false;
+
+    /**
+     * @param context used to get the configuration for the drawable from
+     */
+    public AddDeleteDrawable(Context context, int color) {
+        Resources resources = context.getResources();
+
+        mSize = resources.getDimensionPixelSize(R.dimen.add_size);
+        float barThickness = Math.round(resources.getDimension(R.dimen.add_thickness));
+
+        mPaint.setColor(color);
+        mPaint.setStyle(Paint.Style.STROKE);
+        mPaint.setStrokeJoin(Paint.Join.MITER);
+        mPaint.setStrokeCap(Paint.Cap.BUTT);
+        mPaint.setStrokeWidth(barThickness);
+
+        float halfSize = mSize / 2;
+        mPath.moveTo(0f, -halfSize);
+        mPath.lineTo(0, halfSize);
+        mPath.moveTo(-halfSize, 0);
+        mPath.lineTo(halfSize, 0);
+    }
+
+    @Override
+    public void draw(Canvas canvas) {
+        Rect bounds = getBounds();
+        float canvasRotate;
+        if (mVerticalMirror) {
+            canvasRotate = MathUtils.lerp(270, 135f, mProgress);
+        } else {
+            canvasRotate = MathUtils.lerp(0f, 135f, mProgress);
+        }
+
+        canvas.save();
+        canvas.translate(bounds.centerX(), bounds.centerY());
+        canvas.rotate(canvasRotate);
+        canvas.drawPath(mPath, mPaint);
+        canvas.restore();
+    }
+
+    public void setColor(int color) {
+        mPaint.setColor(color);
+        invalidateSelf();
+    }
+
+    @Override
+    public void setAlpha(int alpha) {
+        mPaint.setAlpha(alpha);
+    }
+
+    @Override
+    public void setColorFilter(ColorFilter cf) {
+        mPaint.setColorFilter(cf);
+    }
+
+    @Override
+    public int getIntrinsicHeight() {
+        return mSize * 6 / 5;
+    }
+
+    @Override
+    public int getIntrinsicWidth() {
+        return mSize * 6 / 5;
+    }
+
+    /**
+     * If set, canvas is flipped when progress reached to end and going back to start.
+     */
+    protected void setVerticalMirror(boolean verticalMirror) {
+        mVerticalMirror = verticalMirror;
+    }
+
+    public void setAutoUpdateMirror(boolean autoUpdateMirror) {
+        mAutoUpdateMirror = autoUpdateMirror;
+    }
+
+    @Keep
+    public float getProgress() {
+        return mProgress;
+    }
+
+    @Keep
+    public void setProgress(float progress) {
+        if (mAutoUpdateMirror) {
+            if (progress == 1f) {
+                setVerticalMirror(true);
+            } else if (progress == 0f) {
+                setVerticalMirror(false);
+            }
+        }
+        mProgress = progress;
+        invalidateSelf();
+    }
+
+    public void setAdd(long duration) {
+        setShape(false, duration);
+    }
+
+    public void setDelete(long duration) {
+        setShape(true, duration);
+    }
+
+    public void setShape(boolean delete, long duration) {
+        if (!((!delete && mProgress == 0f) || (delete && mProgress == 1f))) {
+            float endProgress = delete ? 1f : 0f;
+            if (duration <= 0) {
+                setProgress(endProgress);
+            } else {
+                ObjectAnimator oa = ObjectAnimator.ofFloat(this, "progress", endProgress);
+                oa.setDuration(duration);
+                oa.setAutoCancel(true);
+                oa.start();
+            }
+        }
+    }
+
+    @Override
+    public int getOpacity() {
+        return PixelFormat.TRANSLUCENT;
+    }
+}

app/src/main/java/com/hippo/drawable/PreciselyClipDrawable.kt

@@ -0,0 +1,68 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hippo.drawable
+
+import android.graphics.Canvas
+import android.graphics.Rect
+import android.graphics.RectF
+import android.graphics.drawable.Drawable
+import android.graphics.drawable.DrawableWrapper
+import androidx.core.graphics.withClip
+
+/**
+ * Show a part of the original drawable
+ */
+class PreciselyClipDrawable(
+    drawable: Drawable,
+    offsetX: Int,
+    offsetY: Int,
+    width: Int,
+    height: Int
+) : DrawableWrapper(drawable) {
+    private val mScale: RectF
+    private val mTemp = Rect()
+
+    init {
+        val originWidth = drawable.intrinsicWidth.toFloat()
+        val originHeight = drawable.intrinsicHeight.toFloat()
+        mScale = RectF(
+            (offsetX / originWidth).coerceIn(0.0f, 1.0f),
+            (offsetY / originHeight).coerceIn(0.0f, 1.0f),
+            ((offsetX + width) / originWidth).coerceIn(0.0f, 1.0f),
+            ((offsetY + height) / originHeight).coerceIn(0.0f, 1.0f),
+        )
+    }
+
+    override fun onBoundsChange(bounds: Rect) {
+        mTemp.left = ((mScale.left * bounds.right - mScale.right * bounds.left) / (mScale.left * (1 - mScale.right) - mScale.right * (1 - mScale.left))).toInt()
+        mTemp.right = (((1 - mScale.right) * bounds.left - (1 - mScale.left) * bounds.right) / (mScale.left * (1 - mScale.right) - mScale.right * (1 - mScale.left))).toInt()
+        mTemp.top = ((mScale.top * bounds.bottom - mScale.bottom * bounds.top) / (mScale.top * (1 - mScale.bottom) - mScale.bottom * (1 - mScale.top))).toInt()
+        mTemp.bottom = (((1 - mScale.bottom) * bounds.top - (1 - mScale.top) * bounds.bottom) / (mScale.top * (1 - mScale.bottom) - mScale.bottom * (1 - mScale.top))).toInt()
+        super.onBoundsChange(mTemp)
+    }
+
+    override fun getIntrinsicWidth(): Int {
+        return (super.getIntrinsicWidth() * mScale.width()).toInt()
+    }
+
+    override fun getIntrinsicHeight(): Int {
+        return (super.getIntrinsicHeight() * mScale.height()).toInt()
+    }
+
+    override fun draw(canvas: Canvas) {
+        canvas.withClip(bounds) { super.draw(canvas) }
+    }
+}

app/src/main/java/com/hippo/drawable/TriangleDrawable.java

@@ -0,0 +1,72 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.drawable;
+
+import android.graphics.Canvas;
+import android.graphics.ColorFilter;
+import android.graphics.Paint;
+import android.graphics.Path;
+import android.graphics.PixelFormat;
+import android.graphics.Rect;
+import android.graphics.drawable.Drawable;
+
+public class TriangleDrawable extends Drawable {
+
+    private final Paint mPaint;
+    private final Path mPath;
+
+    public TriangleDrawable(int color) {
+        mPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.DITHER_FLAG);
+        mPaint.setColor(color);
+        mPath = new Path();
+    }
+
+    public void setColor(int color) {
+        mPaint.setColor(color);
+        invalidateSelf();
+    }
+
+    @Override
+    protected void onBoundsChange(Rect bounds) {
+        super.onBoundsChange(bounds);
+        mPath.reset();
+        mPath.moveTo(bounds.left, bounds.top);
+        mPath.lineTo(bounds.right, bounds.top);
+        mPath.lineTo(bounds.right, bounds.bottom);
+        mPath.close();
+    }
+
+    @Override
+    public void draw(Canvas canvas) {
+        canvas.drawPath(mPath, mPaint);
+    }
+
+    @Override
+    public void setAlpha(int alpha) {
+        mPaint.setAlpha(alpha);
+    }
+
+    @Override
+    public void setColorFilter(ColorFilter colorFilter) {
+        mPaint.setColorFilter(colorFilter);
+    }
+
+    @Override
+    public int getOpacity() {
+        return PixelFormat.OPAQUE;
+    }
+}

app/src/main/java/com/hippo/drawable/UnikeryDrawable.java

@@ -0,0 +1,104 @@
+/*
+ * Copyright 2015 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.drawable;
+
+import android.graphics.drawable.AnimatedImageDrawable;
+import android.graphics.drawable.Drawable;
+
+import com.hippo.widget.ObservedTextView;
+
+import coil.Coil;
+import coil.request.Disposable;
+import coil.request.ImageRequest;
+
+public class UnikeryDrawable extends WrapDrawable implements ObservedTextView.OnWindowAttachListener {
+
+    private static final String TAG = UnikeryDrawable.class.getSimpleName();
+    private final ObservedTextView mTextView;
+    private String mUrl;
+    private Disposable task;
+
+    public UnikeryDrawable(ObservedTextView textView) {
+        mTextView = textView;
+        mTextView.setOnWindowAttachListener(this);
+    }
+
+    @Override
+    public void onAttachedToWindow() {
+        load(mUrl);
+    }
+
+    @Override
+    public void onDetachedFromWindow() {
+        if (task != null && !task.isDisposed())
+            task.dispose();
+        clearDrawable();
+    }
+
+    public void load(String url) {
+        if (url != null) {
+            mUrl = url;
+            var imageLoader = Coil.imageLoader(mTextView.getContext());
+            var request = new ImageRequest.Builder(mTextView.getContext()).data(url).memoryCacheKey(url).diskCacheKey(url).target(
+                    drawable -> null,
+                    drawable -> null,
+                    drawable -> {
+                        onGetValue(drawable);
+                        return null;
+                    }
+            ).build();
+            task = imageLoader.enqueue(request);
+        }
+    }
+
+    private void clearDrawable() {
+        setDrawable(null);
+    }
+
+    @Override
+    public void setDrawable(Drawable drawable) {
+        // Remove old callback
+        Drawable oldDrawable = getDrawable();
+        if (oldDrawable != null) {
+            oldDrawable.setCallback(null);
+        }
+
+        super.setDrawable(drawable);
+
+        if (drawable != null) {
+            drawable.setCallback(mTextView);
+        }
+
+        updateBounds();
+        if (drawable != null) {
+            invalidateSelf();
+        }
+    }
+
+    @Override
+    public void invalidateSelf() {
+        CharSequence cs = mTextView.getText();
+        mTextView.setText(cs);
+    }
+
+    public void onGetValue(Drawable drawable) {
+        clearDrawable();
+        setDrawable(drawable);
+        if (drawable instanceof AnimatedImageDrawable animatedImageDrawable)
+            animatedImageDrawable.start();
+    }
+}

app/src/main/java/com/hippo/drawable/WrapDrawable.java

@@ -0,0 +1,143 @@
+/*
+ * Copyright 2015 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.drawable;
+
+import android.graphics.Canvas;
+import android.graphics.ColorFilter;
+import android.graphics.PixelFormat;
+import android.graphics.Rect;
+import android.graphics.drawable.Drawable;
+
+public class WrapDrawable extends Drawable {
+
+    private Drawable mDrawable;
+
+    public Drawable getDrawable() {
+        return mDrawable;
+    }
+
+    public void setDrawable(Drawable drawable) {
+        mDrawable = drawable;
+    }
+
+    public void updateBounds() {
+        setBounds(0, 0, getIntrinsicWidth(), getIntrinsicHeight());
+    }
+
+    @Override
+    public void draw(Canvas canvas) {
+        if (mDrawable != null) {
+            mDrawable.draw(canvas);
+        }
+    }
+
+    @Override
+    public void setBounds(int left, int top, int right, int bottom) {
+        super.setBounds(left, top, right, bottom);
+
+        if (mDrawable != null) {
+            mDrawable.setBounds(left, top, right, bottom);
+        }
+    }
+
+    @Override
+    public void setBounds(Rect bounds) {
+        super.setBounds(bounds);
+
+        if (mDrawable != null) {
+            mDrawable.setBounds(bounds);
+        }
+    }
+
+    @Override
+    public int getChangingConfigurations() {
+        if (mDrawable != null) {
+            return mDrawable.getChangingConfigurations();
+        } else {
+            return super.getChangingConfigurations();
+        }
+    }
+
+    @Override
+    public void setChangingConfigurations(int configs) {
+        super.setChangingConfigurations(configs);
+
+        if (mDrawable != null) {
+            mDrawable.setChangingConfigurations(configs);
+        }
+    }
+
+    @Override
+    public void setDither(boolean dither) {
+        super.setDither(dither);
+
+        if (mDrawable != null) {
+            mDrawable.setDither(dither);
+        }
+    }
+
+    @Override
+    public void setFilterBitmap(boolean filter) {
+        super.setFilterBitmap(filter);
+
+        if (mDrawable != null) {
+            mDrawable.setFilterBitmap(filter);
+        }
+    }
+
+
+    @Override
+    public void setAlpha(int alpha) {
+        if (mDrawable != null) {
+            mDrawable.setAlpha(alpha);
+        }
+    }
+
+    @Override
+    public void setColorFilter(ColorFilter cf) {
+        if (mDrawable != null) {
+            mDrawable.setColorFilter(cf);
+        }
+    }
+
+    @Override
+    public int getOpacity() {
+        if (mDrawable != null) {
+            return mDrawable.getOpacity();
+        } else {
+            return PixelFormat.UNKNOWN;
+        }
+    }
+
+    @Override
+    public int getIntrinsicWidth() {
+        if (mDrawable != null) {
+            return mDrawable.getIntrinsicWidth();
+        } else {
+            return super.getIntrinsicWidth();
+        }
+    }
+
+    @Override
+    public int getIntrinsicHeight() {
+        if (mDrawable != null) {
+            return mDrawable.getIntrinsicHeight();
+        } else {
+            return super.getIntrinsicHeight();
+        }
+    }
+}

app/src/main/java/com/hippo/easyrecyclerview/EasyRecyclerView.java

@@ -0,0 +1,675 @@
+/*
+ * Copyright (C) 2015 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.easyrecyclerview;
+
+import android.content.Context;
+import android.os.Parcel;
+import android.os.Parcelable;
+import android.util.AttributeSet;
+import android.util.SparseBooleanArray;
+import android.view.ActionMode;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.Checkable;
+
+import androidx.annotation.NonNull;
+import androidx.collection.LongSparseArray;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.hippo.yorozuya.NumberUtils;
+
+/**
+ * Add setChoiceMode for RecyclerView
+ */
+// Get some code from twoway-view and AbsListView.
+public class EasyRecyclerView extends RecyclerView {
+
+    /**
+     * Normal list that does not indicate choices
+     */
+    public static final int CHOICE_MODE_NONE = 0;
+
+    /**
+     * The list allows up to one choice
+     */
+    public static final int CHOICE_MODE_SINGLE = 1;
+
+    /**
+     * The list allows multiple choices
+     */
+    public static final int CHOICE_MODE_MULTIPLE = 2;
+
+    /**
+     * The list allows multiple choices in a modal selection mode
+     */
+    public static final int CHOICE_MODE_MULTIPLE_MODAL = 3;
+
+    /**
+     * The list allows multiple choices in custom action
+     */
+    public static final int CHOICE_MODE_MULTIPLE_CUSTOM = 4;
+    // Fling friction
+    public float pageScrollThreshold;
+    /**
+     * Wrapper for the multiple choice mode callback; AbsListView needs to perform
+     * a few extra actions around what application code does.
+     */
+    MultiChoiceModeWrapper mMultiChoiceModeCallback;
+    /**
+     * Controls if/how the user may choose/check items in the list
+     */
+    private int mChoiceMode = CHOICE_MODE_NONE;
+    /**
+     * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive.
+     */
+    private ActionMode mChoiceActionMode;
+    /**
+     * Listener for custom multiple choices
+     */
+    private CustomChoiceListener mCustomChoiceListener;
+
+    private boolean mCustomChoice = false;
+
+    /**
+     * A lock, avoid OutOfCustomChoiceMode when doing OutOfCustomChoiceMode
+     */
+    private boolean mOutOfCustomChoiceModing = false;
+
+    private SparseBooleanArray mTempCheckStates;
+
+    /**
+     * Running count of how many items are currently checked
+     */
+    private int mCheckedItemCount;
+
+    /**
+     * Running state of which positions are currently checked
+     */
+    private SparseBooleanArray mCheckStates;
+
+    /**
+     * Running state of which IDs are currently checked.
+     * If there is a value for a given key, the checked state for that ID is true
+     * and the value holds the last known position in the adapter for that id.
+     */
+    private LongSparseArray<Integer> mCheckedIdStates;
+
+    private Adapter<?> mAdapter;
+
+    public EasyRecyclerView(Context context) {
+        super(context);
+        EasyRecyclerView.this.init(context);
+    }
+
+    public EasyRecyclerView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        EasyRecyclerView.this.init(context);
+    }
+
+    public EasyRecyclerView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+        EasyRecyclerView.this.init(context);
+    }
+
+    public static void setViewChecked(View view, boolean checked) {
+        if (view instanceof Checkable) {
+            ((Checkable) view).setChecked(checked);
+        } else {
+            view.setActivated(checked);
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void setAdapter(RecyclerView.Adapter adapter) {
+
+        super.setAdapter(adapter);
+
+        mAdapter = adapter;
+        if (adapter != null) {
+            if (mChoiceMode != CHOICE_MODE_NONE && adapter.hasStableIds() &&
+                    mCheckedIdStates == null) {
+                mCheckedIdStates = new LongSparseArray<>();
+            }
+        }
+
+        if (mCheckStates != null) {
+            mCheckStates.clear();
+        }
+
+        if (mCheckedIdStates != null) {
+            mCheckedIdStates.clear();
+        }
+    }
+
+    @Override
+    public void onChildAttachedToWindow(@NonNull View child) {
+        super.onChildAttachedToWindow(child);
+
+        if (mCheckStates != null) {
+            int position = getChildAdapterPosition(child);
+            if (position >= 0) {
+                setViewChecked(child, mCheckStates.get(position));
+            }
+        }
+    }
+
+
+    public int getCheckedItemCount() {
+        return mCheckedItemCount;
+    }
+
+    /**
+     * Returns the checked state of the specified position. The result is only
+     * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE}
+     * or {@link #CHOICE_MODE_MULTIPLE}.
+     *
+     * @param position The item whose checked state to return
+     * @return The item's checked state or <code>false</code> if choice mode
+     * is invalid
+     * @see #setChoiceMode(int)
+     */
+    public boolean isItemChecked(int position) {
+        //noinspection SimplifiableIfStatement
+        if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) {
+            return mCheckStates.get(position);
+        }
+
+        return false;
+    }
+
+    /**
+     * Returns the set of checked items in the list. The result is only valid if
+     * the choice mode has not been set to {@link #CHOICE_MODE_NONE}.
+     *
+     * @return A SparseBooleanArray which will return true for each call to
+     * get(int position) where position is a checked position in the
+     * list and false otherwise, or <code>null</code> if the choice
+     * mode is set to {@link #CHOICE_MODE_NONE}.
+     */
+    public SparseBooleanArray getCheckedItemPositions() {
+        if (mChoiceMode != CHOICE_MODE_NONE) {
+            return mCheckStates;
+        }
+        return null;
+    }
+
+    public boolean isInCustomChoice() {
+        return mCustomChoice;
+    }
+
+    public void intoCustomChoiceMode() {
+        if (mChoiceMode == CHOICE_MODE_MULTIPLE_CUSTOM && !mCustomChoice) {
+            mCustomChoice = true;
+
+            mCustomChoiceListener.onIntoCustomChoice(this);
+        }
+    }
+
+    public void outOfCustomChoiceMode() {
+        if (mChoiceMode == CHOICE_MODE_MULTIPLE_CUSTOM && mCustomChoice && !mOutOfCustomChoiceModing) {
+            mOutOfCustomChoiceModing = true;
+
+            // Copy mCheckStates
+            mTempCheckStates.clear();
+            for (int i = 0, n = mCheckStates.size(); i < n; i++) {
+                mTempCheckStates.put(mCheckStates.keyAt(i), mCheckStates.valueAt(i));
+            }
+            // Uncheck remain checked items
+            for (int i = 0, n = mTempCheckStates.size(); i < n; i++) {
+                if (mTempCheckStates.valueAt(i)) {
+                    setItemChecked(mTempCheckStates.keyAt(i), false);
+                }
+            }
+
+            mCustomChoice = false;
+            mCustomChoiceListener.onOutOfCustomChoice(this);
+
+            mOutOfCustomChoiceModing = false;
+        }
+    }
+
+    /**
+     * Clear any choices previously set
+     */
+    private void clearChoices() {
+        if (mCheckStates != null) {
+            mCheckStates.clear();
+        }
+        if (mCheckedIdStates != null) {
+            mCheckedIdStates.clear();
+        }
+        mCheckedItemCount = 0;
+        updateOnScreenCheckedViews();
+    }
+
+    /**
+     * Sets all items checked.
+     */
+    public void checkAll() {
+        if (mChoiceMode == CHOICE_MODE_NONE || mChoiceMode == CHOICE_MODE_SINGLE) {
+            return;
+        }
+
+        // Check is intoCheckMode
+        if (mChoiceMode == CHOICE_MODE_MULTIPLE_CUSTOM && !mCustomChoice) {
+            throw new IllegalStateException("Call intoCheckMode first");
+        }
+
+        // Start selection mode if needed. We don't need to if we're unchecking something.
+        if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) {
+            if (mMultiChoiceModeCallback == null ||
+                    !mMultiChoiceModeCallback.hasWrappedCallback()) {
+                throw new IllegalStateException("EasyRecyclerView: attempted to start selection mode " +
+                        "for CHOICE_MODE_MULTIPLE_MODAL but no choice mode callback was " +
+                        "supplied. Call setMultiChoiceModeListener to set a callback.");
+            }
+            mChoiceActionMode = startActionMode(mMultiChoiceModeCallback);
+        }
+
+        for (int i = 0, n = mAdapter.getItemCount(); i < n; i++) {
+            boolean oldValue = mCheckStates.get(i);
+            mCheckStates.put(i, true);
+            if (mCheckedIdStates != null && mAdapter.hasStableIds()) {
+                mCheckedIdStates.put(mAdapter.getItemId(i), i);
+            }
+            if (!oldValue) {
+                mCheckedItemCount++;
+            }
+            if (mChoiceActionMode != null) {
+                final long id = mAdapter.getItemId(i);
+                mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, i, id, true);
+            }
+            if (mChoiceMode == CHOICE_MODE_MULTIPLE_CUSTOM) {
+                final long id = mAdapter.getItemId(i);
+                mCustomChoiceListener.onItemCheckedStateChanged(this, i, id, true);
+            }
+        }
+
+        updateOnScreenCheckedViews();
+    }
+
+    public void toggleItemChecked(int position) {
+        if (mCheckStates != null) {
+            setItemChecked(position, !mCheckStates.get(position));
+        }
+    }
+
+    /**
+     * Sets the checked state of the specified position. The is only valid if
+     * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or
+     * {@link #CHOICE_MODE_MULTIPLE}.
+     *
+     * @param position The item whose checked state is to be checked
+     * @param value    The new checked state for the item
+     */
+    public void setItemChecked(int position, boolean value) {
+        if (mChoiceMode == CHOICE_MODE_NONE) {
+            return;
+        }
+
+        // Check is intoCheckMode
+        if (mChoiceMode == CHOICE_MODE_MULTIPLE_CUSTOM && !mCustomChoice) {
+            throw new IllegalStateException("Call intoCheckMode first");
+        }
+
+        // Start selection mode if needed. We don't need to if we're unchecking something.
+        if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) {
+            if (mMultiChoiceModeCallback == null ||
+                    !mMultiChoiceModeCallback.hasWrappedCallback()) {
+                throw new IllegalStateException("EasyRecyclerView: attempted to start selection mode " +
+                        "for CHOICE_MODE_MULTIPLE_MODAL but no choice mode callback was " +
+                        "supplied. Call setMultiChoiceModeListener to set a callback.");
+            }
+            mChoiceActionMode = startActionMode(mMultiChoiceModeCallback);
+        }
+
+        if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL || mChoiceMode == CHOICE_MODE_MULTIPLE_CUSTOM) {
+            boolean oldValue = mCheckStates.get(position);
+            mCheckStates.put(position, value);
+            if (mCheckedIdStates != null && mAdapter.hasStableIds()) {
+                if (value) {
+                    mCheckedIdStates.put(mAdapter.getItemId(position), position);
+                } else {
+                    mCheckedIdStates.remove(mAdapter.getItemId(position));
+                }
+            }
+            if (oldValue != value) {
+                if (value) {
+                    mCheckedItemCount++;
+                } else {
+                    mCheckedItemCount--;
+                }
+            }
+            if (mChoiceActionMode != null) {
+                final long id = mAdapter.getItemId(position);
+                mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode,
+                        position, id, value);
+            }
+            if (mChoiceMode == CHOICE_MODE_MULTIPLE_CUSTOM) {
+                final long id = mAdapter.getItemId(position);
+                mCustomChoiceListener.onItemCheckedStateChanged(this, position, id, value);
+            }
+        } else {
+            boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds();
+            // Clear all values if we're checking something, or unchecking the currently
+            // selected item
+            if (value || isItemChecked(position)) {
+                mCheckStates.clear();
+                if (updateIds) {
+                    mCheckedIdStates.clear();
+                }
+            }
+            // this may end up selecting the value we just cleared but this way
+            // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on
+            if (value) {
+                mCheckStates.put(position, true);
+                if (updateIds) {
+                    mCheckedIdStates.put(mAdapter.getItemId(position), position);
+                }
+                mCheckedItemCount = 1;
+            } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) {
+                mCheckedItemCount = 0;
+            }
+        }
+
+        updateOnScreenCheckedViews();
+    }
+
+    /**
+     * Defines the choice behavior for the List. By default, Lists do not have any choice behavior
+     * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the
+     * List allows up to one item to  be in a chosen state. By setting the choiceMode to
+     * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen.
+     *
+     * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or
+     *                   {@link #CHOICE_MODE_MULTIPLE}
+     */
+    public void setChoiceMode(int choiceMode) {
+        mChoiceMode = choiceMode;
+        if (mChoiceActionMode != null) {
+            mChoiceActionMode.finish();
+            mChoiceActionMode = null;
+        }
+        if (mChoiceMode != CHOICE_MODE_NONE) {
+            if (mCheckStates == null) {
+                mCheckStates = new SparseBooleanArray(0);
+            }
+            if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) {
+                mCheckedIdStates = new LongSparseArray<>(0);
+            }
+            // Modal multi-choice mode only has choices when the mode is active. Clear them.
+            if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) {
+                clearChoices();
+                setLongClickable(true);
+            } else if (mChoiceMode == CHOICE_MODE_MULTIPLE_CUSTOM) {
+                if (mTempCheckStates == null) {
+                    mTempCheckStates = new SparseBooleanArray(0);
+                }
+                clearChoices();
+            }
+        }
+    }
+
+    public void setCustomCheckedListener(CustomChoiceListener listener) {
+        mCustomChoiceListener = listener;
+    }
+
+    /**
+     * Perform a quick, in-place update of the checked or activated state
+     * on all visible item views. This should only be called when a valid
+     * choice mode is active.
+     */
+    private void updateOnScreenCheckedViews() {
+        final int count = getChildCount();
+        for (int i = 0; i < count; i++) {
+            final View child = getChildAt(i);
+            final int position = getChildAdapterPosition(child);
+            setViewChecked(child, mCheckStates.get(position));
+        }
+    }
+
+    private void init(Context context) {
+        float scale = context.getResources().getDisplayMetrics().density;
+        // g (m/s^2)
+        // inch/meter
+        // A context-specific coefficient adjusted to physical values.
+        // look and feel tuning
+        pageScrollThreshold = scale * 80;
+    }
+
+    @Override
+    public Parcelable onSaveInstanceState() {
+        final SavedState ss = new SavedState(super.onSaveInstanceState());
+
+        ss.choiceMode = mChoiceMode;
+        ss.customChoice = mCustomChoice;
+        ss.checkedItemCount = mCheckedItemCount;
+        ss.checkState = mCheckStates;
+        ss.checkIdState = mCheckedIdStates;
+
+        return ss;
+    }
+
+    @Override
+    public void onRestoreInstanceState(Parcelable state) {
+        SavedState ss = (SavedState) state;
+        super.onRestoreInstanceState(ss.getSuperState());
+
+        setChoiceMode(ss.choiceMode);
+        mCustomChoice = ss.customChoice;
+        mCheckedItemCount = ss.checkedItemCount;
+        if (ss.checkState != null) {
+            mCheckStates = ss.checkState;
+        }
+        if (ss.checkIdState != null) {
+            mCheckedIdStates = ss.checkIdState;
+        }
+
+        if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mCheckedItemCount > 0) {
+            mChoiceActionMode = startActionMode(mMultiChoiceModeCallback);
+        }
+        updateOnScreenCheckedViews();
+    }
+
+    /**
+     * A MultiChoiceModeListener receives events for {@link android.widget.AbsListView#CHOICE_MODE_MULTIPLE_MODAL}.
+     * It acts as the {@link android.view.ActionMode.Callback} for the selection mode and also receives
+     * {@link #onItemCheckedStateChanged(android.view.ActionMode, int, long, boolean)} events when the user
+     * selects and deselects list items.
+     */
+    public interface MultiChoiceModeListener extends ActionMode.Callback {
+        /**
+         * Called when an item is checked or unchecked during selection mode.
+         *
+         * @param mode     The {@link android.view.ActionMode} providing the selection mode
+         * @param position Adapter position of the item that was checked or unchecked
+         * @param id       Adapter ID of the item that was checked or unchecked
+         * @param checked  <code>true</code> if the item is now checked, <code>false</code>
+         *                 if the item is now unchecked.
+         */
+        void onItemCheckedStateChanged(ActionMode mode,
+                                       int position, long id, boolean checked);
+    }
+
+    /**
+     * Custom checked
+     */
+    public interface CustomChoiceListener {
+
+        void onIntoCustomChoice(EasyRecyclerView view);
+
+        void onOutOfCustomChoice(EasyRecyclerView view);
+
+        void onItemCheckedStateChanged(EasyRecyclerView view, int position, long id, boolean checked);
+    }
+
+    /**
+     * This saved state class is a Parcelable and should not extend
+     * {@link android.view.View.BaseSavedState} nor {@link android.view.AbsSavedState}
+     * because its super class AbsSavedState's constructor
+     * currently passes null
+     * as a class loader to read its superstate from Parcelable.
+     * This causes {@link android.os.BadParcelableException} when restoring saved states.
+     * <p/>
+     * The super class "RecyclerView" is a part of the support library,
+     * and restoring its saved state requires the class loader that loaded the RecyclerView.
+     * It seems that the class loader is not required when restoring from RecyclerView itself,
+     * but it is required when restoring from RecyclerView's subclasses.
+     */
+    static class SavedState implements Parcelable {
+
+        public static final SavedState EMPTY_STATE = new SavedState() {
+        };
+        public static final Parcelable.Creator<SavedState> CREATOR
+                = new Parcelable.Creator<SavedState>() {
+            @Override
+            public SavedState createFromParcel(Parcel in) {
+                return new SavedState(in);
+            }
+
+            @Override
+            public SavedState[] newArray(int size) {
+                return new SavedState[size];
+            }
+        };
+        int choiceMode;
+        boolean customChoice;
+        int checkedItemCount;
+        SparseBooleanArray checkState;
+        LongSparseArray<Integer> checkIdState;
+        // This keeps the parent(RecyclerView)'s state
+        Parcelable mSuperState;
+
+        SavedState() {
+            mSuperState = null;
+        }
+
+        /**
+         * Constructor called from {@link #onSaveInstanceState()}
+         */
+        SavedState(Parcelable superState) {
+            mSuperState = superState != EMPTY_STATE ? superState : null;
+        }
+
+        /**
+         * Constructor called from {@link #CREATOR}
+         */
+        private SavedState(Parcel in) {
+            // Parcel 'in' has its parent(RecyclerView)'s saved state.
+            // To restore it, class loader that loaded RecyclerView is required.
+            Parcelable superState = in.readParcelable(RecyclerView.class.getClassLoader());
+            mSuperState = superState != null ? superState : EMPTY_STATE;
+
+            choiceMode = in.readInt();
+            customChoice = NumberUtils.int2boolean(in.readInt());
+            checkedItemCount = in.readInt();
+            checkState = in.readSparseBooleanArray();
+            final int N = in.readInt();
+            if (N > 0) {
+                checkIdState = new LongSparseArray<>();
+                for (int i = 0; i < N; i++) {
+                    final long key = in.readLong();
+                    final int value = in.readInt();
+                    checkIdState.put(key, value);
+                }
+            }
+        }
+
+        @Override
+        public int describeContents() {
+            return 0;
+        }
+
+        @Override
+        public void writeToParcel(@NonNull Parcel out, int flags) {
+            out.writeParcelable(mSuperState, flags);
+
+            out.writeInt(choiceMode);
+            out.writeInt(NumberUtils.boolean2int(customChoice));
+            out.writeInt(checkedItemCount);
+            out.writeSparseBooleanArray(checkState);
+            final int N = checkIdState != null ? checkIdState.size() : 0;
+            out.writeInt(N);
+            for (int i = 0; i < N; i++) {
+                out.writeLong(checkIdState.keyAt(i));
+                out.writeInt(checkIdState.valueAt(i));
+            }
+        }
+
+        public Parcelable getSuperState() {
+            return mSuperState;
+        }
+    }
+
+    class MultiChoiceModeWrapper implements MultiChoiceModeListener {
+        private MultiChoiceModeListener mWrapped;
+
+
+        @SuppressWarnings("BooleanMethodIsAlwaysInverted")
+        public boolean hasWrappedCallback() {
+            return mWrapped != null;
+        }
+
+        @Override
+        public boolean onCreateActionMode(ActionMode mode, Menu menu) {
+            if (mWrapped.onCreateActionMode(mode, menu)) {
+                // Initialize checked graphic state?
+                setLongClickable(false);
+                return true;
+            }
+            return false;
+        }
+
+        @Override
+        public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
+            return mWrapped.onPrepareActionMode(mode, menu);
+        }
+
+        @Override
+        public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
+            return mWrapped.onActionItemClicked(mode, item);
+        }
+
+        @Override
+        public void onDestroyActionMode(ActionMode mode) {
+            mWrapped.onDestroyActionMode(mode);
+            mChoiceActionMode = null;
+
+            // Ending selection mode means deselecting everything.
+            clearChoices();
+
+            requestLayout();
+
+            setLongClickable(true);
+        }
+
+        @Override
+        public void onItemCheckedStateChanged(ActionMode mode,
+                                              int position, long id, boolean checked) {
+            mWrapped.onItemCheckedStateChanged(mode, position, id, checked);
+
+            // If there are no items selected we no longer need the selection mode.
+            if (getCheckedItemCount() == 0) {
+                mode.finish();
+            }
+        }
+    }
+}

app/src/main/java/com/hippo/easyrecyclerview/FastScroller.java

@@ -0,0 +1,404 @@
+/*
+ * Copyright 2015 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.easyrecyclerview;
+
+import android.animation.Animator;
+import android.animation.ObjectAnimator;
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.graphics.Canvas;
+import android.graphics.drawable.Drawable;
+import android.os.Handler;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.ViewConfiguration;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.hippo.ehviewer.R;
+import com.hippo.yorozuya.AnimationUtils;
+import com.hippo.yorozuya.LayoutUtils;
+import com.hippo.yorozuya.MathUtils;
+import com.hippo.yorozuya.SimpleAnimatorListener;
+import com.hippo.yorozuya.SimpleHandler;
+
+public class FastScroller extends View {
+
+    private static final int INVALID = -1;
+
+    private static final int SCROLL_BAR_FADE_DURATION = 500;
+    private static final int SCROLL_BAR_DELAY = 1000;
+
+    private static final int MIN_HANDLER_HEIGHT_DP = 32;
+
+    private Handler mSimpleHandler;
+
+    private boolean mDraggable;
+
+    private int mMinHandlerHeight;
+
+    private RecyclerView mRecyclerView;
+    private RecyclerView.OnScrollListener mOnScrollChangeListener;
+    private RecyclerView.Adapter<?> mAdapter;
+    private RecyclerView.AdapterDataObserver mAdapterDataObserver;
+
+    private Drawable mHandler;
+    private int mHandlerOffset = INVALID;
+    private int mHandlerHeight = INVALID;
+
+    private float mDownX = INVALID;
+    private float mDownY = INVALID;
+
+    private float mLastMotionY = INVALID;
+
+    private boolean mDragged = false;
+
+    private boolean mCantDrag = false;
+
+    private int mTouchSlop;
+
+    private OnDragHandlerListener mListener;
+
+    private ObjectAnimator mShowAnimator;
+    private ObjectAnimator mHideAnimator;
+
+    private final Runnable mHideRunnable = new Runnable() {
+        @Override
+        public void run() {
+            mHideAnimator.start();
+        }
+    };
+
+    public FastScroller(Context context) {
+        super(context);
+        init(context, null, 0);
+    }
+
+    public FastScroller(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        init(context, attrs, 0);
+    }
+
+    public FastScroller(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+        init(context, attrs, defStyleAttr);
+    }
+
+    private void init(Context context, AttributeSet attrs, int defStyleAttr) {
+        mSimpleHandler = SimpleHandler.getInstance();
+
+        TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.FastScroller, defStyleAttr, 0);
+        mHandler = a.getDrawable(R.styleable.FastScroller_handler);
+        mDraggable = a.getBoolean(R.styleable.FastScroller_draggable, true);
+        a.recycle();
+
+        setAlpha(0.0f);
+        setVisibility(INVISIBLE);
+
+        mMinHandlerHeight = LayoutUtils.dp2pix(context, MIN_HANDLER_HEIGHT_DP);
+        mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();
+
+        mShowAnimator = ObjectAnimator.ofFloat(this, "alpha", 1.0f);
+        mShowAnimator.setInterpolator(AnimationUtils.FAST_SLOW_INTERPOLATOR);
+        mShowAnimator.setDuration(SCROLL_BAR_FADE_DURATION);
+
+        mHideAnimator = ObjectAnimator.ofFloat(this, "alpha", 0.0f);
+        mHideAnimator.setInterpolator(AnimationUtils.SLOW_FAST_INTERPOLATOR);
+        mHideAnimator.setDuration(SCROLL_BAR_FADE_DURATION);
+        mHideAnimator.addListener(new SimpleAnimatorListener() {
+
+            private boolean mCancel;
+
+            @Override
+            public void onAnimationCancel(Animator animation) {
+                mCancel = true;
+            }
+
+            @Override
+            public void onAnimationEnd(Animator animation) {
+                if (mCancel) {
+                    mCancel = false;
+                } else {
+                    setVisibility(INVISIBLE);
+                }
+            }
+        });
+    }
+
+    public void setOnDragHandlerListener(OnDragHandlerListener listener) {
+        mListener = listener;
+    }
+
+    private void updatePosition(boolean show) {
+        if (mRecyclerView == null) {
+            return;
+        }
+
+        int paddingTop = getPaddingTop();
+        int paddingBottom = getPaddingBottom();
+        int height = getHeight() - paddingTop - paddingBottom;
+        int offset = mRecyclerView.computeVerticalScrollOffset();
+        int extent = mRecyclerView.computeVerticalScrollExtent();
+        int range = mRecyclerView.computeVerticalScrollRange();
+
+        if (height <= 0 || extent >= range || extent <= 0) {
+            return;
+        }
+
+        int endOffset = height * offset / range;
+        int endHeight = height * extent / range;
+
+        endHeight = Math.max(endHeight, mMinHandlerHeight);
+        endOffset = Math.min(endOffset, height - endHeight);
+
+        mHandlerOffset = endOffset + paddingTop;
+        mHandlerHeight = endHeight;
+
+        if (show) {
+            if (mHideAnimator.isRunning()) {
+                mHideAnimator.cancel();
+                mShowAnimator.start();
+            } else if (getVisibility() != VISIBLE && !mShowAnimator.isRunning()) {
+                setVisibility(VISIBLE);
+                mShowAnimator.start();
+            }
+
+            Handler handler = mSimpleHandler;
+            handler.removeCallbacks(mHideRunnable);
+
+            if (!mDragged) {
+                handler.postDelayed(mHideRunnable, SCROLL_BAR_DELAY);
+            }
+        }
+    }
+
+    public void setHandlerDrawable(Drawable drawable) {
+        mHandler = drawable;
+        invalidate();
+    }
+
+    public boolean isDraggable() {
+        return mDraggable;
+    }
+
+    public void setDraggable(boolean draggable) {
+        mDraggable = draggable;
+        if (mDragged) {
+            mDragged = false;
+        }
+        mSimpleHandler.removeCallbacks(mHideRunnable);
+        mHideRunnable.run();
+    }
+
+    public boolean isAttached() {
+        return mRecyclerView != null;
+    }
+
+    public void attachToRecyclerView(RecyclerView recyclerView) {
+        if (recyclerView == null) {
+            return;
+        }
+
+        if (mRecyclerView != null) {
+            throw new IllegalStateException("The FastScroller is already attached to a RecyclerView, " +
+                    "call detachedFromRecyclerView first");
+        }
+
+        mRecyclerView = recyclerView;
+        mOnScrollChangeListener = new RecyclerView.OnScrollListener() {
+
+            @Override
+            public void onScrollStateChanged(@NonNull RecyclerView recyclerView, int newState) {
+            }
+
+            @Override
+            public void onScrolled(@NonNull RecyclerView recyclerView, int dx, int dy) {
+                updatePosition(true);
+                invalidate();
+            }
+        };
+
+        recyclerView.addOnScrollListener(mOnScrollChangeListener);
+
+        mAdapter = recyclerView.getAdapter();
+        if (mAdapter != null) {
+            mAdapterDataObserver = new RecyclerView.AdapterDataObserver() {
+                @Override
+                public void onItemRangeChanged(int positionStart, int itemCount) {
+                    super.onItemRangeChanged(positionStart, itemCount);
+                    updatePosition(false);
+                    invalidate();
+                }
+
+                @Override
+                public void onItemRangeChanged(int positionStart, int itemCount, Object payload) {
+                    super.onItemRangeChanged(positionStart, itemCount, payload);
+                    updatePosition(false);
+                    invalidate();
+                }
+
+                @Override
+                public void onItemRangeInserted(int positionStart, int itemCount) {
+                    super.onItemRangeInserted(positionStart, itemCount);
+                    updatePosition(false);
+                    invalidate();
+                }
+
+                @Override
+                public void onItemRangeRemoved(int positionStart, int itemCount) {
+                    super.onItemRangeRemoved(positionStart, itemCount);
+                    updatePosition(false);
+                    invalidate();
+                }
+
+                @Override
+                public void onItemRangeMoved(int fromPosition, int toPosition, int itemCount) {
+                    super.onItemRangeMoved(fromPosition, toPosition, itemCount);
+                    updatePosition(false);
+                    invalidate();
+                }
+            };
+            mAdapter.registerAdapterDataObserver(mAdapterDataObserver);
+        }
+    }
+
+    public void detachedFromRecyclerView() {
+        if (mRecyclerView != null && mOnScrollChangeListener != null) {
+            mRecyclerView.removeOnScrollListener(mOnScrollChangeListener);
+        }
+        mRecyclerView = null;
+        mOnScrollChangeListener = null;
+
+        if (mAdapter != null && mAdapterDataObserver != null) {
+            mAdapter.unregisterAdapterDataObserver(mAdapterDataObserver);
+        }
+        mAdapter = null;
+        mAdapterDataObserver = null;
+
+        setAlpha(0.0f);
+        setVisibility(INVISIBLE);
+    }
+
+    @Override
+    protected void onDraw(Canvas canvas) {
+        if (mRecyclerView == null || mHandler == null) {
+            return;
+        }
+        if (mHandlerHeight == INVALID) {
+            updatePosition(false);
+        }
+        if (mHandlerHeight == INVALID) {
+            return;
+        }
+
+        int paddingLeft = getPaddingLeft();
+        int saved = canvas.save();
+        canvas.translate(paddingLeft, mHandlerOffset);
+        mHandler.setBounds(0, 0, getWidth() - paddingLeft - getPaddingRight(), mHandlerHeight);
+        mHandler.draw(canvas);
+        canvas.restoreToCount(saved);
+    }
+
+    @SuppressLint("ClickableViewAccessibility")
+    @Override
+    public boolean onTouchEvent(MotionEvent event) {
+        if (!mDraggable || getVisibility() != VISIBLE || mRecyclerView == null || mHandlerHeight == INVALID) {
+            return false;
+        }
+
+        int action = event.getAction();
+        if (action == MotionEvent.ACTION_DOWN) {
+            mCantDrag = false;
+        }
+
+        if (mCantDrag) {
+            return false;
+        }
+
+        switch (action) {
+            case MotionEvent.ACTION_DOWN: {
+                mDragged = false;
+                mDownX = event.getX();
+                mDownY = event.getY();
+                if (mDownY < mHandlerOffset || mDownY > mHandlerOffset + mHandlerHeight) {
+                    mCantDrag = true;
+                    return false;
+                }
+                break;
+            }
+            case MotionEvent.ACTION_MOVE: {
+                if (!mDragged) {
+                    float x = event.getX();
+                    float y = event.getY();
+                    // Check touch slop
+                    if (MathUtils.dist(x, y, mDownX, mDownY) < mTouchSlop) {
+                        return true;
+                    }
+                    if (Math.abs(x - mDownX) > Math.abs(y - mDownY) ||
+                            y < mHandlerOffset || y > mHandlerOffset + mHandlerHeight) {
+                        mCantDrag = true;
+                        return false;
+                    } else {
+                        mDragged = true;
+                        mSimpleHandler.removeCallbacks(mHideRunnable);
+                        // Update mLastMotionY
+                        if (mDownY < mHandlerOffset || mDownY >= mHandlerOffset + mHandlerHeight) {
+                            // the point out of handler, make the point in handler center
+                            mLastMotionY = mHandlerOffset + mHandlerHeight / 2;
+                        } else {
+                            mLastMotionY = mDownY;
+                        }
+                        // Notify
+                        if (mListener != null) {
+                            mListener.onStartDragHandler();
+                        }
+                    }
+                }
+
+                int range = mRecyclerView.computeVerticalScrollRange();
+                if (range <= 0) {
+                    break;
+                }
+                float y = event.getY();
+                int scroll = (int) (range * (y - mLastMotionY) / (getHeight() - getPaddingTop() - getPaddingBottom()));
+                mRecyclerView.scrollBy(0, scroll);
+                mLastMotionY = y;
+                break;
+            }
+            case MotionEvent.ACTION_UP:
+            case MotionEvent.ACTION_CANCEL:
+                // Notify
+                if (mDragged && mListener != null) {
+                    mListener.onEndDragHandler();
+                }
+                mDragged = false;
+                mSimpleHandler.postDelayed(mHideRunnable, SCROLL_BAR_DELAY);
+                break;
+        }
+
+        return true;
+    }
+
+    public interface OnDragHandlerListener {
+        void onStartDragHandler();
+
+        void onEndDragHandler();
+    }
+}

app/src/main/java/com/hippo/easyrecyclerview/HandlerDrawable.java

@@ -0,0 +1,86 @@
+/*
+ * Copyright 2015 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.easyrecyclerview;
+
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.ColorFilter;
+import android.graphics.Paint;
+import android.graphics.PixelFormat;
+import android.graphics.RectF;
+import android.graphics.drawable.Drawable;
+
+import androidx.annotation.NonNull;
+
+public class HandlerDrawable extends Drawable {
+
+    private final Paint mPaint;
+    private final RectF mTemp = new RectF();
+    private int mColor = Color.BLACK;
+
+    public HandlerDrawable() {
+        mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
+        mPaint.setColor(mColor);
+        mPaint.setStyle(Paint.Style.FILL);
+    }
+
+    @Override
+    public void draw(@NonNull Canvas canvas) {
+        int width = getBounds().width();
+        int height = getBounds().height();
+
+        if (width > height) {
+            canvas.drawRect(0, 0, width, height, mPaint);
+        } else {
+            mTemp.set(0, 0, width, width);
+            canvas.drawArc(mTemp, -180, 180, true, mPaint);
+            mTemp.set(0, height - width, width, height);
+            canvas.drawArc(mTemp, 0, 180, true, mPaint);
+            float halfWidth = (float) width / 2.0f;
+            canvas.drawRect(0, halfWidth, width, height - halfWidth, mPaint);
+        }
+    }
+
+    public void setColor(int color) {
+        if (mColor != color) {
+            mColor = color;
+            mPaint.setColor(color);
+        }
+    }
+
+    @Override
+    public void setAlpha(int alpha) {
+        mPaint.setAlpha(alpha);
+    }
+
+    @Override
+    public void setColorFilter(ColorFilter colorFilter) {
+        mPaint.setColorFilter(colorFilter);
+    }
+
+    @Override
+    public int getOpacity() {
+        int alpha = Color.alpha(mColor);
+        if (alpha == 0xff) {
+            return PixelFormat.OPAQUE;
+        } else if (alpha == 0x00) {
+            return PixelFormat.TRANSPARENT;
+        } else {
+            return PixelFormat.TRANSLUCENT;
+        }
+    }
+}

app/src/main/java/com/hippo/easyrecyclerview/LayoutManagerUtils.java

@@ -0,0 +1,151 @@
+/*
+ * Copyright 2015 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.easyrecyclerview;
+
+import android.content.Context;
+import android.graphics.PointF;
+
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+import androidx.recyclerview.widget.StaggeredGridLayoutManager;
+
+import com.hippo.yorozuya.MathUtils;
+import com.hippo.yorozuya.SimpleHandler;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+public final class LayoutManagerUtils {
+
+    private static Method sCsdfp = null;
+
+    static {
+        try {
+            sCsdfp = StaggeredGridLayoutManager.class.getDeclaredMethod("calculateScrollDirectionForPosition", int.class);
+            sCsdfp.setAccessible(true);
+        } catch (NoSuchMethodException e) {
+            // Ignore
+            e.printStackTrace();
+        }
+    }
+
+    public static void scrollToPositionWithOffset(
+            RecyclerView.LayoutManager layoutManager, int position, int offset) {
+        if (layoutManager instanceof LinearLayoutManager) {
+            ((LinearLayoutManager) layoutManager).scrollToPositionWithOffset(position, offset);
+        } else if (layoutManager instanceof StaggeredGridLayoutManager) {
+            ((StaggeredGridLayoutManager) layoutManager).scrollToPositionWithOffset(position, offset);
+        } else {
+            throw new IllegalStateException("Can't do scrollToPositionWithOffset for " +
+                    layoutManager.getClass().getName());
+        }
+    }
+
+    public static void smoothScrollToPosition(
+            RecyclerView.LayoutManager layoutManager, Context context, int position) {
+        smoothScrollToPosition(layoutManager, context, position, -1);
+    }
+
+    public static void smoothScrollToPosition(
+            RecyclerView.LayoutManager layoutManager, Context context, int position,
+            int millisecondsPerInch) {
+        SimpleSmoothScroller smoothScroller;
+        if (layoutManager instanceof final LinearLayoutManager linearLayoutManager) {
+            smoothScroller = new SimpleSmoothScroller(context, millisecondsPerInch) {
+                @Override
+                public PointF computeScrollVectorForPosition(int targetPosition) {
+                    return linearLayoutManager.computeScrollVectorForPosition(targetPosition);
+                }
+            };
+
+        } else if (layoutManager instanceof final StaggeredGridLayoutManager staggeredGridLayoutManager) {
+            smoothScroller = new SimpleSmoothScroller(context, millisecondsPerInch) {
+                @Override
+                public PointF computeScrollVectorForPosition(int targetPosition) {
+                    int direction = 0;
+                    try {
+                        direction = (Integer) sCsdfp.invoke(staggeredGridLayoutManager, targetPosition);
+                    } catch (IllegalAccessException | InvocationTargetException e) {
+                        e.printStackTrace();
+                    }
+
+                    if (direction == 0) {
+                        return null;
+                    }
+                    if (staggeredGridLayoutManager.getOrientation() == StaggeredGridLayoutManager.HORIZONTAL) {
+                        return new PointF(direction, 0);
+                    } else {
+                        return new PointF(0, direction);
+                    }
+                }
+            };
+
+        } else {
+            throw new IllegalStateException("Can't do smoothScrollToPosition for " +
+                    layoutManager.getClass().getName());
+        }
+        smoothScroller.setTargetPosition(position);
+        layoutManager.startSmoothScroll(smoothScroller);
+    }
+
+    public static void scrollToPositionProperly(final RecyclerView.LayoutManager layoutManager,
+                                                final Context context, final int position, final OnScrollToPositionListener listener) {
+        SimpleHandler.getInstance().postDelayed(() -> {
+            int first = getFirstVisibleItemPosition(layoutManager);
+            int last = getLastVisibleItemPosition(layoutManager);
+            int offset = Math.abs(position - first);
+            int max = last - first;
+            if (offset < max && max > 0) {
+                smoothScrollToPosition(layoutManager, context, position,
+                        MathUtils.lerp(100, 25, (offset / max)));
+            } else {
+                scrollToPositionWithOffset(layoutManager, position, 0);
+                if (listener != null) {
+                    listener.onScrollToPosition(position);
+                }
+            }
+        }, 200);
+    }
+
+    public static int getFirstVisibleItemPosition(RecyclerView.LayoutManager layoutManager) {
+        if (layoutManager instanceof LinearLayoutManager) {
+            return ((LinearLayoutManager) layoutManager).findFirstVisibleItemPosition();
+        } else if (layoutManager instanceof StaggeredGridLayoutManager) {
+            int[] positions = ((StaggeredGridLayoutManager) layoutManager).findFirstVisibleItemPositions(null);
+            return MathUtils.min(positions);
+        } else {
+            throw new IllegalStateException("Can't do getFirstVisibleItemPosition for " +
+                    layoutManager.getClass().getName());
+        }
+    }
+
+    public static int getLastVisibleItemPosition(RecyclerView.LayoutManager layoutManager) {
+        if (layoutManager instanceof LinearLayoutManager) {
+            return ((LinearLayoutManager) layoutManager).findLastVisibleItemPosition();
+        } else if (layoutManager instanceof StaggeredGridLayoutManager) {
+            int[] positions = ((StaggeredGridLayoutManager) layoutManager).findLastVisibleItemPositions(null);
+            return MathUtils.max(positions);
+        } else {
+            throw new IllegalStateException("Can't do getLastVisibleItemPosition for " +
+                    layoutManager.getClass().getName());
+        }
+    }
+
+    public interface OnScrollToPositionListener {
+        void onScrollToPosition(int position);
+    }
+}

app/src/main/java/com/hippo/easyrecyclerview/MarginItemDecoration.java

@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2015 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.easyrecyclerview;
+
+import android.graphics.Rect;
+import android.view.View;
+
+import androidx.recyclerview.widget.RecyclerView;
+
+public class MarginItemDecoration extends RecyclerView.ItemDecoration {
+
+    private int mMargin;
+    private int mPaddingLeft;
+    private int mPaddingTop;
+    private int mPaddingRight;
+    private int mPaddingBottom;
+
+    public MarginItemDecoration(int margin, int paddingLeft, int paddingTop,
+                                int paddingRight, int paddingBottom) {
+        setMargin(margin, paddingLeft, paddingTop, paddingRight, paddingBottom);
+    }
+
+    @Override
+    public void getItemOffsets(Rect outRect, View view,
+                               RecyclerView parent, RecyclerView.State state) {
+        outRect.set(mMargin, mMargin, mMargin, mMargin);
+    }
+
+    /**
+     * @param margin        gap between two item
+     * @param paddingLeft   gap between RecyclerView left and left item left
+     * @param paddingTop    gap between RecyclerView top and top item top
+     * @param paddingRight  gap between RecyclerView right and right item right
+     * @param paddingBottom gap between RecyclerView bottom and bottom item bottom
+     */
+    public void setMargin(int margin, int paddingLeft, int paddingTop,
+                          int paddingRight, int paddingBottom) {
+        int halfMargin = margin / 2;
+        mMargin = halfMargin;
+        mPaddingLeft = paddingLeft - halfMargin;
+        mPaddingTop = paddingTop - halfMargin;
+        mPaddingRight = paddingRight - halfMargin;
+        mPaddingBottom = paddingBottom - halfMargin;
+    }
+
+    public void applyPaddings(View view) {
+        view.setPadding(mPaddingLeft, mPaddingTop, mPaddingRight, mPaddingBottom);
+    }
+}

app/src/main/java/com/hippo/easyrecyclerview/SimpleHolder.java

@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2015 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.easyrecyclerview;
+
+import android.view.View;
+
+import androidx.recyclerview.widget.RecyclerView;
+
+public class SimpleHolder extends RecyclerView.ViewHolder {
+
+    public SimpleHolder(View itemView) {
+        super(itemView);
+    }
+}

app/src/main/java/com/hippo/easyrecyclerview/SimpleSmoothScroller.java

@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2015 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.easyrecyclerview;
+
+import android.content.Context;
+
+import androidx.recyclerview.widget.LinearSmoothScroller;
+
+public abstract class SimpleSmoothScroller extends LinearSmoothScroller {
+
+    private final float mMillisecondsPerPx;
+
+    public SimpleSmoothScroller(Context context, float millisecondsPerInch) {
+        super(context);
+        mMillisecondsPerPx = millisecondsPerInch / context.getResources().getDisplayMetrics().densityDpi;
+    }
+
+    @Override
+    protected int calculateTimeForScrolling(int dx) {
+        if (mMillisecondsPerPx <= 0) {
+            return super.calculateTimeForScrolling(dx);
+        } else {
+            return (int) Math.ceil(Math.abs(dx) * mMillisecondsPerPx);
+        }
+    }
+}

app/src/main/java/com/hippo/ehviewer/AppConfig.java

@@ -0,0 +1,178 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.ehviewer;
+
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.os.Environment;
+
+import androidx.annotation.Nullable;
+
+import com.hippo.ehviewer.client.exception.ParseException;
+import com.hippo.util.ReadableTime;
+import com.hippo.yorozuya.FileUtils;
+import com.hippo.yorozuya.IOUtils;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.nio.charset.StandardCharsets;
+
+public class AppConfig {
+
+    public static final String APP_DIRNAME = "EhViewer";
+
+    private static final String DOWNLOAD = "download";
+    private static final String TEMP = "temp";
+    private static final String PARSE_ERROR = "parse_error";
+    private static final String CRASH = "crash";
+
+    @SuppressLint("StaticFieldLeak")
+    private static Context sContext;
+
+    public static void initialize(Context context) {
+        sContext = context.getApplicationContext();
+    }
+
+    @Nullable
+    public static File getExternalAppDir() {
+        if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) {
+            File dir = sContext.getExternalFilesDir(null);
+            return FileUtils.ensureDirectory(dir) ? dir : null;
+        }
+        return null;
+    }
+
+    /**
+     * mkdirs and get
+     */
+    @Nullable
+    public static File getDirInExternalAppDir(String filename) {
+        File appFolder = getExternalAppDir();
+        if (appFolder != null) {
+            File dir = new File(appFolder, filename);
+            return FileUtils.ensureDirectory(dir) ? dir : null;
+        }
+        return null;
+    }
+
+    @Nullable
+    public static File getFileInExternalAppDir(String filename) {
+        File appFolder = getExternalAppDir();
+        if (appFolder != null) {
+            File file = new File(appFolder, filename);
+            return FileUtils.ensureFile(file) ? file : null;
+        }
+        return null;
+    }
+
+    @Nullable
+    public static File getDefaultDownloadDir() {
+        return getDirInExternalAppDir(DOWNLOAD);
+    }
+
+    @Nullable
+    public static File getExternalTempDir() {
+        File dir = sContext.getExternalCacheDir();
+        File file;
+        if (null != dir && FileUtils.ensureDirectory(file = new File(dir, TEMP))) {
+            return file;
+        } else {
+            return null;
+        }
+    }
+
+    @Nullable
+    public static File getExternalCopyTempDir() {
+        File dir = sContext.getExternalCacheDir();
+        File file;
+        if (null != dir && FileUtils.ensureDirectory(file = new File(dir, "copy"))) {
+            return file;
+        } else {
+            return null;
+        }
+    }
+
+    @Nullable
+    public static File getExternalParseErrorDir() {
+        return getDirInExternalAppDir(PARSE_ERROR);
+    }
+
+    @Nullable
+    public static File getExternalCrashDir() {
+        return getDirInExternalAppDir(CRASH);
+    }
+
+    @Nullable
+    public static File getTempDir() {
+        File dir = sContext.getCacheDir();
+        File file;
+        if (null != dir && FileUtils.ensureDirectory(file = new File(dir, TEMP))) {
+            return file;
+        } else {
+            return null;
+        }
+    }
+
+    @Nullable
+    public static File createTempFile() {
+        return FileUtils.createTempFile(getTempDir(), null);
+    }
+
+    public static void saveParseErrorBody(ParseException e) {
+        File dir = getExternalParseErrorDir();
+        if (null == dir) {
+            return;
+        }
+
+        File file = new File(dir, ReadableTime.getFilenamableTime(System.currentTimeMillis()) + ".txt");
+        OutputStream os = null;
+        try {
+            os = new FileOutputStream(file);
+            String message = e.getMessage();
+            String body = e.getBody();
+            if (null != message) {
+                os.write(message.getBytes(StandardCharsets.UTF_8));
+                os.write('\n');
+            }
+            if (null != body) {
+                os.write(body.getBytes(StandardCharsets.UTF_8));
+            }
+            os.flush();
+        } catch (IOException e1) {
+            // Ignore
+        } finally {
+            IOUtils.closeQuietly(os);
+        }
+    }
+
+    @Nullable
+    public static File getFilesDir(String name) {
+        File dir = sContext.getFilesDir();
+        if (dir == null) {
+            return null;
+        }
+
+        dir = new File(dir, name);
+        if (dir.isDirectory() || dir.mkdirs()) {
+            return dir;
+        } else {
+            return null;
+        }
+    }
+}

app/src/main/java/com/hippo/ehviewer/Crash.kt

@@ -0,0 +1,173 @@
+/*
+ * Copyright 2019 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hippo.ehviewer
+
+import android.os.Build
+import android.os.Debug
+import com.hippo.util.ReadableTime
+import com.hippo.yorozuya.FileUtils
+import com.hippo.yorozuya.IOUtils
+import com.hippo.yorozuya.OSUtils
+import java.io.File
+import java.io.FileWriter
+import java.io.IOException
+import java.io.PrintWriter
+import java.util.Arrays
+
+object Crash {
+
+    @Throws(IOException::class)
+    private fun collectInfo(fw: FileWriter) {
+        fw.write("======== PackageInfo ========\r\n")
+        fw.write("PackageName=")
+        fw.write(BuildConfig.APPLICATION_ID)
+        fw.write("\r\n")
+        fw.write("VersionName=")
+        fw.write(BuildConfig.VERSION_NAME)
+        fw.write("\r\n")
+        fw.write("VersionCode=")
+        fw.write(BuildConfig.VERSION_CODE)
+        fw.write("\r\n")
+        fw.write("CommitSha=")
+        fw.write(BuildConfig.COMMIT_SHA)
+        fw.write("\r\n")
+        fw.write("BuildTime=")
+        fw.write(BuildConfig.BUILD_TIME)
+        fw.write("\r\n")
+        fw.write("\r\n")
+
+        // Runtime
+        val topActivityClazzName = EhApplication.application.topActivity?.javaClass?.name
+        fw.write("======== Runtime ========\r\n")
+        fw.write("TopActivity=")
+        fw.write(topActivityClazzName ?: "null")
+        fw.write("\r\n")
+        fw.write("\r\n")
+        fw.write("\r\n")
+
+        // Device info
+        fw.write("======== DeviceInfo ========\r\n")
+        fw.write("BOARD=")
+        fw.write(Build.BOARD)
+        fw.write("\r\n")
+        fw.write("BOOTLOADER=")
+        fw.write(Build.BOOTLOADER)
+        fw.write("\r\n")
+        fw.write("SUPPORTED_ABIS=")
+        fw.write(Arrays.toString(Build.SUPPORTED_ABIS))
+        fw.write("\r\n")
+        fw.write("DEVICE=")
+        fw.write(Build.DEVICE)
+        fw.write("\r\n")
+        fw.write("DISPLAY=")
+        fw.write(Build.DISPLAY)
+        fw.write("\r\n")
+        fw.write("FINGERPRINT=")
+        fw.write(Build.FINGERPRINT)
+        fw.write("\r\n")
+        fw.write("HARDWARE=")
+        fw.write(Build.HARDWARE)
+        fw.write("\r\n")
+        fw.write("HOST=")
+        fw.write(Build.HOST)
+        fw.write("\r\n")
+        fw.write("ID=")
+        fw.write(Build.ID)
+        fw.write("\r\n")
+        fw.write("MANUFACTURER=")
+        fw.write(Build.MANUFACTURER)
+        fw.write("\r\n")
+        fw.write("MODEL=")
+        fw.write(Build.MODEL)
+        fw.write("\r\n")
+        fw.write("PRODUCT=")
+        fw.write(Build.PRODUCT)
+        fw.write("\r\n")
+        fw.write("RADIO=")
+        fw.write(Build.getRadioVersion())
+        fw.write("\r\n")
+        fw.write("TAGS=")
+        fw.write(Build.TAGS)
+        fw.write("\r\n")
+        fw.write("TYPE=")
+        fw.write(Build.TYPE)
+        fw.write("\r\n")
+        fw.write("USER=")
+        fw.write(Build.USER)
+        fw.write("\r\n")
+        fw.write("CODENAME=")
+        fw.write(Build.VERSION.CODENAME)
+        fw.write("\r\n")
+        fw.write("INCREMENTAL=")
+        fw.write(Build.VERSION.INCREMENTAL)
+        fw.write("\r\n")
+        fw.write("RELEASE=")
+        fw.write(Build.VERSION.RELEASE)
+        fw.write("\r\n")
+        fw.write("SDK=")
+        fw.write(Build.VERSION.SDK_INT.toString())
+        fw.write("\r\n")
+        fw.write("MEMORY=")
+        fw.write(
+            FileUtils.humanReadableByteCount(OSUtils.getAppAllocatedMemory(), false)
+        )
+        fw.write("\r\n")
+        fw.write("MEMORY_NATIVE=")
+        fw.write(FileUtils.humanReadableByteCount(Debug.getNativeHeapAllocatedSize(), false))
+        fw.write("\r\n")
+        fw.write("MEMORY_MAX=")
+        fw.write(FileUtils.humanReadableByteCount(OSUtils.getAppMaxMemory(), false))
+        fw.write("\r\n")
+        fw.write("MEMORY_TOTAL=")
+        fw.write(FileUtils.humanReadableByteCount(OSUtils.getTotalMemory(), false))
+        fw.write("\r\n")
+        fw.write("\r\n")
+    }
+
+    private fun getThrowableInfo(t: Throwable, fw: FileWriter) {
+        val printWriter = PrintWriter(fw)
+        t.printStackTrace(printWriter)
+        var cause = t.cause
+        while (cause != null) {
+            cause.printStackTrace(printWriter)
+            cause = cause.cause
+        }
+    }
+
+    fun saveCrashLog(t: Throwable) {
+        val dir = AppConfig.getExternalCrashDir() ?: return
+        val nowString = ReadableTime.getFilenamableTime(System.currentTimeMillis())
+        val fileName = "crash-$nowString.log"
+        val file = File(dir, fileName)
+        var fw: FileWriter? = null
+        try {
+            fw = FileWriter(file)
+            fw.write("TIME=")
+            fw.write(nowString)
+            fw.write("\r\n")
+            fw.write("\r\n")
+            collectInfo(fw)
+            fw.write("======== CrashInfo ========\r\n")
+            getThrowableInfo(t, fw)
+            fw.write("\r\n")
+            fw.flush()
+        } catch (e: Exception) {
+            file.delete()
+        } finally {
+            IOUtils.closeQuietly(fw)
+        }
+    }
+}

app/src/main/java/com/hippo/ehviewer/EhApplication.kt

@@ -0,0 +1,250 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.ehviewer
+
+import android.annotation.SuppressLint
+import android.app.Activity
+import android.app.Application
+import android.content.ComponentCallbacks2
+import androidx.appcompat.app.AppCompatDelegate
+import androidx.collection.LruCache
+import androidx.lifecycle.DefaultLifecycleObserver
+import androidx.lifecycle.LifecycleOwner
+import androidx.lifecycle.ProcessLifecycleOwner
+import coil.ImageLoader
+import coil.ImageLoaderFactory
+import coil.util.DebugLogger
+import com.hippo.Native
+import com.hippo.ehviewer.client.EhCookieStore
+import com.hippo.ehviewer.client.EhDns
+import com.hippo.ehviewer.client.EhSSLSocketFactory
+import com.hippo.ehviewer.client.EhTagDatabase
+import com.hippo.ehviewer.client.data.GalleryDetail
+import com.hippo.ehviewer.coil.MergeInterceptor
+import com.hippo.ehviewer.dao.buildMainDB
+import com.hippo.ehviewer.download.DownloadManager
+import com.hippo.ehviewer.ui.CommonOperations
+import com.hippo.ehviewer.ui.EhActivity
+import com.hippo.util.ExceptionUtils
+import com.hippo.util.ReadableTime
+import com.hippo.yorozuya.FileUtils
+import com.hippo.yorozuya.IntIdGenerator
+import eu.kanade.tachiyomi.core.preference.AndroidPreferenceStore
+import eu.kanade.tachiyomi.ui.reader.setting.ReaderPreferences
+import eu.kanade.tachiyomi.util.lang.launchIO
+import kotlinx.coroutines.DelicateCoroutinesApi
+import okhttp3.OkHttpClient
+import java.net.Proxy
+import java.security.KeyStore
+import javax.net.ssl.TrustManagerFactory
+import javax.net.ssl.X509TrustManager
+
+class EhApplication : Application(), DefaultLifecycleObserver, ImageLoaderFactory {
+    private val mIdGenerator = IntIdGenerator()
+    private val mGlobalStuffMap = HashMap<Int, Any>()
+    private val mActivityList = ArrayList<Activity>()
+    val topActivity: EhActivity?
+        get() = if (mActivityList.isNotEmpty()) {
+            mActivityList[mActivityList.size - 1] as EhActivity
+        } else {
+            null
+        }
+
+    fun recreateAllActivity() {
+        mActivityList.forEach { it.recreate() }
+    }
+
+    @OptIn(DelicateCoroutinesApi::class)
+    @SuppressLint("StaticFieldLeak")
+    override fun onCreate() {
+        ProcessLifecycleOwner.get().lifecycle.addObserver(this)
+        application = this
+        val handler = Thread.getDefaultUncaughtExceptionHandler()
+        Thread.setDefaultUncaughtExceptionHandler { t, e ->
+            try {
+                if (Settings.getSaveCrashLog()) {
+                    Crash.saveCrashLog(e)
+                }
+            } catch (ignored: Throwable) {
+            }
+            handler?.uncaughtException(t, e)
+        }
+        super<Application>.onCreate()
+        Native.initialize()
+        GetText.initialize(this)
+        Settings.initialize()
+        ReadableTime.initialize(this)
+        AppConfig.initialize(this)
+        EhTagDatabase.update()
+        AppCompatDelegate.setDefaultNightMode(Settings.getTheme())
+        launchIO {
+            launchIO {
+                ehDatabase
+            }
+            launchIO {
+                DownloadManager.isIdle
+            }
+            launchIO {
+                cleanupDownload()
+            }
+        }
+        mIdGenerator.setNextId(Settings.getInt(KEY_GLOBAL_STUFF_NEXT_ID, 0))
+    }
+
+    private fun cleanupDownload() {
+        try {
+            val downloadLocation = Settings.getDownloadLocation()
+            if (Settings.getMediaScan()) {
+                CommonOperations.removeNoMediaFile(downloadLocation)
+            } else {
+                CommonOperations.ensureNoMediaFile(downloadLocation)
+            }
+        } catch (t: Throwable) {
+            t.printStackTrace()
+            ExceptionUtils.throwIfFatal(t)
+        }
+
+        // Clear temp files
+        try {
+            clearTempDir()
+        } catch (t: Throwable) {
+            t.printStackTrace()
+            ExceptionUtils.throwIfFatal(t)
+        }
+    }
+
+    private fun clearTempDir() {
+        var dir = AppConfig.getTempDir()
+        if (null != dir) {
+            FileUtils.deleteContent(dir)
+        }
+        dir = AppConfig.getExternalTempDir()
+        if (null != dir) {
+            FileUtils.deleteContent(dir)
+        }
+    }
+
+    override fun onTrimMemory(level: Int) {
+        super.onTrimMemory(level)
+        if (level >= ComponentCallbacks2.TRIM_MEMORY_RUNNING_LOW) {
+            galleryDetailCache.evictAll()
+        }
+    }
+
+    fun putGlobalStuff(o: Any): Int {
+        val id = mIdGenerator.nextId()
+        mGlobalStuffMap[id] = o
+        Settings.putInt(KEY_GLOBAL_STUFF_NEXT_ID, mIdGenerator.nextId())
+        return id
+    }
+
+    fun containGlobalStuff(id: Int): Boolean {
+        return mGlobalStuffMap.containsKey(id)
+    }
+
+    fun getGlobalStuff(id: Int): Any? {
+        return mGlobalStuffMap[id]
+    }
+
+    fun removeGlobalStuff(id: Int): Any? {
+        return mGlobalStuffMap.remove(id)
+    }
+
+    fun removeGlobalStuff(o: Any) {
+        mGlobalStuffMap.values.removeAll(setOf(o))
+    }
+
+    fun registerActivity(activity: Activity) {
+        mActivityList.add(activity)
+    }
+
+    fun unregisterActivity(activity: Activity) {
+        mActivityList.remove(activity)
+    }
+
+    override fun onPause(owner: LifecycleOwner) {
+        if (!locked)
+            locked_last_leave_time = System.currentTimeMillis() / 1000
+        locked = true
+    }
+
+    override fun newImageLoader(): ImageLoader {
+        return ImageLoader.Builder(this).apply {
+            okHttpClient(okHttpClient)
+            components { add(MergeInterceptor) }
+            crossfade(300)
+            if (BuildConfig.DEBUG) logger(DebugLogger())
+        }.build()
+    }
+
+    companion object {
+        private const val KEY_GLOBAL_STUFF_NEXT_ID = "global_stuff_next_id"
+        var locked = true
+        var locked_last_leave_time: Long = 0
+
+        @JvmStatic
+        lateinit var application: EhApplication
+            private set
+
+        @JvmStatic
+        val ehCookieStore by lazy { EhCookieStore }
+
+        @JvmStatic
+        val ehProxySelector by lazy { EhProxySelector() }
+
+        @JvmStatic
+        val okHttpClient by lazy {
+            val builder = OkHttpClient.Builder()
+                .cookieJar(ehCookieStore)
+                .dns(EhDns)
+                .proxySelector(ehProxySelector)
+
+            if (Settings.getDF()) {
+                val factory =
+                    TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm())!!
+                factory.init(null as KeyStore?)
+                val manager = factory.trustManagers!!
+
+                val trustManager = manager.filterIsInstance<X509TrustManager>().first()
+                builder.sslSocketFactory(EhSSLSocketFactory, trustManager)
+                builder.proxy(Proxy.NO_PROXY)
+            }
+            builder.build()
+        }
+
+        @JvmStatic
+        val galleryDetailCache by lazy {
+            LruCache<Long, GalleryDetail>(25).also {
+                favouriteStatusRouter.addListener { gid, slot ->
+                    it[gid]?.favoriteSlot = slot
+                }
+            }
+        }
+
+        @JvmStatic
+        val hosts by lazy { Hosts(application, "hosts.db") }
+
+        @JvmStatic
+        val favouriteStatusRouter by lazy { FavouriteStatusRouter() }
+
+        @JvmStatic
+        val readerPreferences by lazy { ReaderPreferences(AndroidPreferenceStore(application)) }
+
+        @JvmStatic
+        val ehDatabase by lazy { buildMainDB(application) }
+    }
+}

app/src/main/java/com/hippo/ehviewer/EhDB.kt

@@ -0,0 +1,459 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hippo.ehviewer
+
+import android.content.Context
+import android.net.Uri
+import android.os.ParcelFileDescriptor
+import android.os.ParcelFileDescriptor.MODE_READ_ONLY
+import androidx.paging.PagingSource
+import androidx.room.Room.databaseBuilder
+import com.hippo.Native
+import com.hippo.ehviewer.EhApplication.Companion.ehDatabase
+import com.hippo.ehviewer.client.data.GalleryInfo
+import com.hippo.ehviewer.dao.BasicDao
+import com.hippo.ehviewer.dao.DownloadDirname
+import com.hippo.ehviewer.dao.DownloadInfo
+import com.hippo.ehviewer.dao.DownloadLabel
+import com.hippo.ehviewer.dao.EhDatabase
+import com.hippo.ehviewer.dao.Filter
+import com.hippo.ehviewer.dao.HistoryInfo
+import com.hippo.ehviewer.dao.LocalFavoriteInfo
+import com.hippo.ehviewer.dao.QuickSearch
+import com.hippo.ehviewer.download.DownloadManager
+
+object EhDB {
+    private const val CUR_DB_VER = 4
+    private val db = ehDatabase
+
+    // Fix state
+    @get:Synchronized
+    val allDownloadInfo: List<DownloadInfo>
+        get() = db.downloadsDao().list().onEach {
+            if (it.state == DownloadInfo.STATE_WAIT || it.state == DownloadInfo.STATE_DOWNLOAD) {
+                it.state = DownloadInfo.STATE_NONE
+            }
+        }
+
+    @Synchronized
+    fun updateDownloadInfo(downloadInfos: List<DownloadInfo>) {
+        val dao = db.downloadsDao()
+        dao.update(downloadInfos)
+    }
+
+    @Synchronized
+    fun putDownloadInfo(downloadInfo: DownloadInfo) {
+        db.downloadsDao().run {
+            if (load(downloadInfo.gid) != null) {
+                update(downloadInfo)
+            } else {
+                insert(downloadInfo)
+            }
+        }
+    }
+
+    @Synchronized
+    fun removeDownloadInfo(downloadInfo: DownloadInfo) {
+        db.downloadsDao().delete(downloadInfo)
+    }
+
+    @Synchronized
+    fun getDownloadDirname(gid: Long): String? {
+        val dao = db.downloadDirnameDao()
+        val raw = dao.load(gid)
+        return raw?.dirname
+    }
+
+    @Synchronized
+    fun putDownloadDirname(gid: Long, dirname: String?) {
+        val dao = db.downloadDirnameDao()
+        var raw = dao.load(gid)
+        if (raw != null) {
+            raw.dirname = dirname
+            dao.update(raw)
+        } else {
+            raw = DownloadDirname(gid, dirname)
+            dao.insert(raw)
+        }
+    }
+
+    @Synchronized
+    fun removeDownloadDirname(gid: Long) {
+        val dao = db.downloadDirnameDao()
+        dao.deleteByKey(gid)
+    }
+
+    @Synchronized
+    fun clearDownloadDirname() {
+        val dao = db.downloadDirnameDao()
+        dao.deleteAll()
+    }
+
+    @get:Synchronized
+    val allDownloadLabelList: List<DownloadLabel>
+        get() = db.downloadLabelDao().list()
+
+    @Synchronized
+    fun addDownloadLabel(label: String): DownloadLabel {
+        val dao = db.downloadLabelDao()
+        val raw = DownloadLabel()
+        raw.label = label
+        raw.time = System.currentTimeMillis()
+        raw.id = dao.insert(raw)
+        return raw
+    }
+
+    @Synchronized
+    fun addDownloadLabel(raw: DownloadLabel): DownloadLabel {
+        // Reset id
+        raw.id = null
+        val dao = db.downloadLabelDao()
+        raw.id = dao.insert(raw)
+        return raw
+    }
+
+    @Synchronized
+    fun updateDownloadLabel(raw: DownloadLabel?) {
+        val dao = db.downloadLabelDao()
+        dao.update(raw!!)
+    }
+
+    @Synchronized
+    fun moveDownloadLabel(fromPosition: Int, toPosition: Int) {
+        if (fromPosition == toPosition) {
+            return
+        }
+        val reverse = fromPosition > toPosition
+        val offset = if (reverse) toPosition else fromPosition
+        val limit = if (reverse) fromPosition - toPosition + 1 else toPosition - fromPosition + 1
+        val dao = db.downloadLabelDao()
+        val list = dao.list(offset, limit)
+        val step = if (reverse) 1 else -1
+        val start = if (reverse) limit - 1 else 0
+        val end = if (reverse) 0 else limit - 1
+        val toTime = list[end].time
+        var i = end
+        while (if (reverse) i < start else i > start) {
+            list[i].time = list[i + step].time
+            i += step
+        }
+        list[start].time = toTime
+        dao.update(list)
+    }
+
+    @Synchronized
+    fun removeDownloadLabel(raw: DownloadLabel?) {
+        val dao = db.downloadLabelDao()
+        dao.delete(raw!!)
+    }
+
+    @get:Synchronized
+    val allLocalFavorites: List<GalleryInfo>
+        get() {
+            val dao = db.localFavoritesDao()
+            val list = dao.list()
+            return ArrayList<GalleryInfo>(list)
+        }
+
+    @Synchronized
+    fun searchLocalFavorites(query: String): List<GalleryInfo> {
+        val dao = db.localFavoritesDao()
+        val list = dao.list("%$query%")
+        return ArrayList<GalleryInfo>(list)
+    }
+
+    @Synchronized
+    fun removeLocalFavorites(gid: Long) {
+        db.localFavoritesDao().deleteByKey(gid)
+    }
+
+    @Synchronized
+    fun removeLocalFavorites(gidArray: LongArray) {
+        val dao = db.localFavoritesDao()
+        for (gid in gidArray) {
+            dao.deleteByKey(gid)
+        }
+    }
+
+    @JvmStatic
+    @Synchronized
+    fun containLocalFavorites(gid: Long): Boolean {
+        val dao = db.localFavoritesDao()
+        return null != dao.load(gid)
+    }
+
+    @Synchronized
+    fun putLocalFavorites(galleryInfo: GalleryInfo) {
+        val dao = db.localFavoritesDao()
+        if (null == dao.load(galleryInfo.gid)) {
+            val info: LocalFavoriteInfo
+            if (galleryInfo is LocalFavoriteInfo) {
+                info = galleryInfo
+            } else {
+                info = LocalFavoriteInfo(galleryInfo)
+                info.time = System.currentTimeMillis()
+            }
+            dao.insert(info)
+        }
+    }
+
+    @Synchronized
+    fun putLocalFavorites(galleryInfoList: List<GalleryInfo>) {
+        for (gi in galleryInfoList) {
+            putLocalFavorites(gi)
+        }
+    }
+
+    @get:Synchronized
+    val allQuickSearch: List<QuickSearch>
+        get() {
+            val dao = db.quickSearchDao()
+            return dao.list()
+        }
+
+    @Synchronized
+    fun insertQuickSearch(quickSearch: QuickSearch) {
+        val dao = db.quickSearchDao()
+        quickSearch.id = null
+        quickSearch.time = System.currentTimeMillis()
+        quickSearch.id = dao.insert(quickSearch)
+    }
+
+    @Synchronized
+    fun importQuickSearch(quickSearchList: List<QuickSearch?>) {
+        val dao = db.quickSearchDao()
+        for (quickSearch in quickSearchList) {
+            dao.insert(quickSearch!!)
+        }
+    }
+
+    @Synchronized
+    fun deleteQuickSearch(quickSearch: QuickSearch?) {
+        val dao = db.quickSearchDao()
+        dao.delete(quickSearch)
+    }
+
+    @Synchronized
+    fun moveQuickSearch(fromPosition: Int, toPosition: Int) {
+        if (fromPosition == toPosition) {
+            return
+        }
+        val reverse = fromPosition > toPosition
+        val offset = if (reverse) toPosition else fromPosition
+        val limit = if (reverse) fromPosition - toPosition + 1 else toPosition - fromPosition + 1
+        val dao = db.quickSearchDao()
+        val list = dao.list(offset, limit)
+        val step = if (reverse) 1 else -1
+        val start = if (reverse) limit - 1 else 0
+        val end = if (reverse) 0 else limit - 1
+        val toTime = list[end].time
+        var i = end
+        while (if (reverse) i < start else i > start) {
+            list[i].time = list[i + step].time
+            i += step
+        }
+        list[start].time = toTime
+        dao.update(list)
+    }
+
+    @get:Synchronized
+    val historyLazyList: PagingSource<Int, HistoryInfo>
+        get() = db.historyDao().listLazy()
+
+    @Synchronized
+    fun putHistoryInfo(galleryInfo: GalleryInfo?) {
+        val dao = db.historyDao()
+        val info: HistoryInfo = if (galleryInfo is HistoryInfo) {
+            galleryInfo
+        } else {
+            HistoryInfo(galleryInfo!!)
+        }
+        info.time = System.currentTimeMillis()
+        if (null != dao.load(info.gid)) {
+            dao.update(info)
+        } else {
+            dao.insert(info)
+        }
+    }
+
+    @Synchronized
+    fun putHistoryInfoNonRefresh(info: GalleryInfo) {
+        val dao = db.historyDao()
+        val i = dao.load(info.gid)
+        if (null != i) {
+            val historyInfo: HistoryInfo
+            if (info is HistoryInfo) {
+                historyInfo = info
+            } else {
+                historyInfo = HistoryInfo(info)
+                historyInfo.time = i.time
+            }
+            dao.update(historyInfo)
+        }
+    }
+
+    @Synchronized
+    fun putHistoryInfo(historyInfoList: List<HistoryInfo>) {
+        val dao = db.historyDao()
+        for (info in historyInfoList) {
+            if (null == dao.load(info.gid)) {
+                dao.insert(info)
+            }
+        }
+    }
+
+    @Synchronized
+    fun deleteHistoryInfo(info: HistoryInfo?) {
+        val dao = db.historyDao()
+        dao.delete(info!!)
+    }
+
+    @Synchronized
+    fun clearHistoryInfo() {
+        val dao = db.historyDao()
+        dao.deleteAll()
+    }
+
+    @get:Synchronized
+    val allFilter: List<Filter>
+        get() = db.filterDao().list()
+
+    @Synchronized
+    fun addFilter(filter: Filter): Boolean {
+        val existFilter: Filter? = try {
+            db.filterDao().load(filter.text!!, filter.mode)
+        } catch (e: Exception) {
+            null
+        }
+        return if (existFilter == null) {
+            filter.id = null
+            filter.id = db.filterDao().insert(filter)
+            true
+        } else {
+            false
+        }
+    }
+
+    @Synchronized
+    fun deleteFilter(filter: Filter) {
+        db.filterDao().delete(filter)
+    }
+
+    @Synchronized
+    fun triggerFilter(filter: Filter) {
+        filter.enable = filter.enable?.not() ?: false
+        db.filterDao().update(filter)
+    }
+
+    private fun <T> copyDao(from: BasicDao<T>, to: BasicDao<T>) {
+        val list = from.list()
+        for (item in list) to.insert(item)
+    }
+
+    @Synchronized
+    fun exportDB(context: Context, uri: Uri): Boolean {
+        val ehExportName = "eh.export.db"
+        runCatching {
+            context.deleteDatabase(ehExportName)
+            val newDb = databaseBuilder(context, EhDatabase::class.java, ehExportName).build()
+            copyDao(db.downloadsDao(), newDb.downloadsDao())
+            copyDao(db.downloadLabelDao(), newDb.downloadLabelDao())
+            copyDao(db.downloadDirnameDao(), newDb.downloadDirnameDao())
+            copyDao(db.historyDao(), newDb.historyDao())
+            copyDao(db.quickSearchDao(), newDb.quickSearchDao())
+            copyDao(db.localFavoritesDao(), newDb.localFavoritesDao())
+            copyDao(db.filterDao(), newDb.filterDao())
+            val dbFile = context.getDatabasePath(ehExportName)
+            context.contentResolver.openFileDescriptor(uri, "rw")!!.use { toFd ->
+                ParcelFileDescriptor.open(dbFile, MODE_READ_ONLY).use { fromFd ->
+                    Native.sendfile(fromFd.fd, toFd.fd)
+                }
+            }
+            return true
+        }.onFailure {
+            it.printStackTrace()
+        }
+        return false
+    }
+
+    /**
+     * @return error string, null for no error
+     */
+    @Synchronized
+    fun importDB(context: Context, uri: Uri): String? {
+        runCatching {
+            val oldDB = databaseBuilder(context, EhDatabase::class.java, "tmp.db")
+                .createFromInputStream { context.contentResolver.openInputStream(uri) }.build()
+
+            // Download label
+            val manager = DownloadManager
+            runCatching {
+                val downloadLabelList = oldDB.downloadLabelDao().list()
+                manager.addDownloadLabel(downloadLabelList)
+            }
+
+            // Downloads
+            runCatching {
+                val downloadInfoList = oldDB.downloadsDao().list()
+                manager.addDownload(downloadInfoList, false)
+            }
+
+            // Download dirname
+            runCatching {
+                oldDB.downloadDirnameDao().list().forEach {
+                    putDownloadDirname(it.gid, it.dirname)
+                }
+            }
+
+            // History
+            runCatching {
+                val historyInfoList = oldDB.historyDao().list()
+                putHistoryInfo(historyInfoList)
+            }
+
+            // QuickSearch
+            runCatching {
+                val quickSearchList = oldDB.quickSearchDao().list()
+                val currentQuickSearchList = db.quickSearchDao().list()
+                val importList = quickSearchList.mapNotNull { newQS ->
+                    newQS.takeIf { currentQuickSearchList.find { it.name == newQS.name } == null }
+                }
+                importQuickSearch(importList)
+            }
+
+            // LocalFavorites
+            runCatching {
+                oldDB.localFavoritesDao().list().forEach {
+                    putLocalFavorites(it)
+                }
+            }
+
+            // Filter
+            runCatching {
+                val filterList = oldDB.filterDao().list()
+                val currentFilterList = db.filterDao().list()
+                filterList.forEach {
+                    if (it !in currentFilterList) addFilter(it)
+                }
+            }
+            oldDB.close()
+        }.onFailure {
+            it.printStackTrace()
+            return context.getString(R.string.cant_read_the_file)
+        }
+        return null
+    }
+}

app/src/main/java/com/hippo/ehviewer/EhProxySelector.java

@@ -0,0 +1,110 @@
+/*
+ * Copyright 2019 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.ehviewer;
+
+import android.text.TextUtils;
+
+import com.hippo.network.InetValidator;
+import com.hippo.util.ExceptionUtils;
+
+import java.io.IOException;
+import java.net.InetAddress;
+import java.net.InetSocketAddress;
+import java.net.Proxy;
+import java.net.ProxySelector;
+import java.net.SocketAddress;
+import java.net.URI;
+import java.util.Collections;
+import java.util.List;
+
+public class EhProxySelector extends ProxySelector {
+
+    public static final int TYPE_DIRECT = 0;
+    public static final int TYPE_SYSTEM = 1;
+    public static final int TYPE_HTTP = 2;
+    public static final int TYPE_SOCKS = 3;
+
+    private ProxySelector delegation;
+    private ProxySelector alternative;
+
+    EhProxySelector() {
+        alternative = ProxySelector.getDefault();
+        if (alternative == null) {
+            alternative = new NullProxySelector();
+        }
+
+        updateProxy();
+    }
+
+    public void updateProxy() {
+        switch (Settings.getProxyType()) {
+            case TYPE_DIRECT:
+                delegation = new NullProxySelector();
+                break;
+            default:
+            case TYPE_SYSTEM:
+                delegation = alternative;
+                break;
+            case TYPE_HTTP:
+            case TYPE_SOCKS:
+                delegation = null;
+                break;
+        }
+    }
+
+    @Override
+    public List<Proxy> select(URI uri) {
+        int type = Settings.getProxyType();
+        if (type == TYPE_HTTP || type == TYPE_SOCKS) {
+            try {
+                String ip = Settings.getProxyIp();
+                int port = Settings.getProxyPort();
+                if (!TextUtils.isEmpty(ip) && InetValidator.isValidInetPort(port)) {
+                    InetAddress inetAddress = InetAddress.getByName(ip);
+                    SocketAddress socketAddress = new InetSocketAddress(inetAddress, port);
+                    return Collections.singletonList(new Proxy(type == TYPE_HTTP ? Proxy.Type.HTTP : Proxy.Type.SOCKS, socketAddress));
+                }
+            } catch (Throwable t) {
+                ExceptionUtils.throwIfFatal(t);
+            }
+        }
+
+        if (delegation != null) {
+            return delegation.select(uri);
+        }
+
+        return alternative.select(uri);
+    }
+
+    @Override
+    public void connectFailed(URI uri, SocketAddress sa, IOException ioe) {
+        if (delegation != null) {
+            delegation.select(uri);
+        }
+    }
+
+    private static class NullProxySelector extends ProxySelector {
+        @Override
+        public List<Proxy> select(URI uri) {
+            return Collections.singletonList(Proxy.NO_PROXY);
+        }
+
+        @Override
+        public void connectFailed(URI uri, SocketAddress sa, IOException ioe) {
+        }
+    }
+}

app/src/main/java/com/hippo/ehviewer/FavouriteStatusRouter.java

@@ -0,0 +1,74 @@
+/*
+ * Copyright 2019 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.ehviewer;
+
+import android.annotation.SuppressLint;
+
+import com.hippo.ehviewer.client.data.GalleryInfo;
+import com.hippo.yorozuya.IntIdGenerator;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+public class FavouriteStatusRouter {
+
+    private static final String KEY_DATA_MAP_NEXT_ID = "data_map_next_id";
+
+    private final IntIdGenerator idGenerator = new IntIdGenerator(Settings.getInt(KEY_DATA_MAP_NEXT_ID, 0));
+    @SuppressLint("UseSparseArrays")
+    private final HashMap<Integer, Map<Long, GalleryInfo>> maps = new HashMap<>();
+
+    private final List<Listener> listeners = new ArrayList<>();
+
+    public int saveDataMap(Map<Long, GalleryInfo> map) {
+        int id = idGenerator.nextId();
+        maps.put(id, map);
+        Settings.putInt(KEY_DATA_MAP_NEXT_ID, idGenerator.nextId());
+        return id;
+    }
+
+    public Map<Long, GalleryInfo> restoreDataMap(int id) {
+        return maps.remove(id);
+    }
+
+    public void modifyFavourites(long gid, int slot) {
+        for (Map<Long, GalleryInfo> map : maps.values()) {
+            GalleryInfo info = map.get(gid);
+            if (info != null) {
+                info.setFavoriteSlot(slot);
+            }
+        }
+
+        for (Listener listener : listeners) {
+            listener.onModifyFavourites(gid, slot);
+        }
+    }
+
+    public void addListener(Listener listener) {
+        listeners.add(listener);
+    }
+
+    public void removeListener(Listener listener) {
+        listeners.remove(listener);
+    }
+
+    public interface Listener {
+        void onModifyFavourites(long gid, int slot);
+    }
+}

app/src/main/java/com/hippo/ehviewer/GetText.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.ehviewer;
+
+import android.content.Context;
+import android.content.res.Resources;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.StringRes;
+
+public class GetText {
+
+    private static Resources sResources;
+
+    public static void initialize(Context context) {
+        sResources = context.getApplicationContext().getResources();
+    }
+
+    @NonNull
+    public static String getString(@StringRes int id) {
+        return sResources.getString(id);
+    }
+
+    @NonNull
+    public static String getString(@StringRes int id, Object... formatArgs) {
+        return sResources.getString(id, formatArgs);
+    }
+}

app/src/main/java/com/hippo/ehviewer/Hosts.java

@@ -0,0 +1,343 @@
+/*
+ * Copyright 2018 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.ehviewer;
+
+/*
+ * Created by Hippo on 2018/3/21.
+ */
+
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
+import android.util.Pair;
+
+import androidx.annotation.Nullable;
+
+import com.hippo.database.MSQLiteBuilder;
+import com.hippo.util.SqlUtils;
+
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import java.util.ArrayList;
+import java.util.List;
+
+public class Hosts {
+
+    private static final int VERSION_1 = 1;
+    private static final String TABLE_HOSTS = "HOSTS";
+    private static final String COLUMN_HOST = "HOST";
+    private static final String COLUMN_IP = "IP";
+
+    private static final int DB_VERSION = VERSION_1;
+
+    private final SQLiteDatabase db;
+
+    public Hosts(Context context, String name) {
+        SQLiteOpenHelper helper = new MSQLiteBuilder()
+                .version(VERSION_1)
+                .createTable(TABLE_HOSTS)
+                .insertColumn(TABLE_HOSTS, COLUMN_HOST, String.class)
+                .insertColumn(TABLE_HOSTS, COLUMN_IP, String.class)
+                .build(context, name, DB_VERSION);
+        db = helper.getWritableDatabase();
+    }
+
+    @Nullable
+    public static InetAddress toInetAddress(String host, String ip) {
+        if (!isValidHost(host)) {
+            return null;
+        }
+
+        if (ip == null) {
+            return null;
+        }
+
+        byte[] bytes = parseV4(ip);
+        if (bytes == null) {
+            bytes = parseV6(ip);
+        }
+        if (bytes == null) {
+            return null;
+        }
+
+        try {
+            return InetAddress.getByAddress(host, bytes);
+        } catch (UnknownHostException e) {
+            return null;
+        }
+    }
+
+    /**
+     * Returns true if the host is valid.
+     */
+    public static boolean isValidHost(String host) {
+        if (host == null) {
+            return false;
+        }
+
+        if (host.length() > 253) {
+            return false;
+        }
+
+        int labelLength = 0;
+        for (int i = 0, n = host.length(); i < n; i++) {
+            char ch = host.charAt(i);
+
+            if (ch == '.') {
+                if (labelLength < 1 || labelLength > 63) {
+                    return false;
+                }
+                labelLength = 0;
+            } else {
+                labelLength++;
+            }
+
+            if ((ch < 'a' || ch > 'z') && (ch < '0' || ch > '9') && ch != '-' && ch != '.') {
+                return false;
+            }
+        }
+
+        return labelLength >= 1 && labelLength <= 63;
+    }
+
+    /**
+     * Returns true if ips are valid.
+     */
+    public static boolean isValidIp(String ips) {
+        if (ips == null) {
+            return false;
+        }
+        String[] list = ips.split("\\+");
+        for (String ip : list) {
+            if (parseV4(ip) == null && parseV6(ip) == null) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    // org.xbill.DNS.Address.parseV4
+    @Nullable
+    private static byte[] parseV4(String s) {
+        int numDigits;
+        int currentOctet;
+        byte[] values = new byte[4];
+        int currentValue;
+        int length = s.length();
+
+        currentOctet = 0;
+        currentValue = 0;
+        numDigits = 0;
+        for (int i = 0; i < length; i++) {
+            char c = s.charAt(i);
+            if (c >= '0' && c <= '9') {
+                /* Can't have more than 3 digits per octet. */
+                if (numDigits == 3)
+                    return null;
+                /* Octets shouldn't start with 0, unless they are 0. */
+                if (numDigits > 0 && currentValue == 0)
+                    return null;
+                numDigits++;
+                currentValue *= 10;
+                currentValue += (c - '0');
+                /* 255 is the maximum value for an octet. */
+                if (currentValue > 255)
+                    return null;
+            } else if (c == '.') {
+                /* Can't have more than 3 dots. */
+                if (currentOctet == 3)
+                    return null;
+                /* Two consecutive dots are bad. */
+                if (numDigits == 0)
+                    return null;
+                values[currentOctet++] = (byte) currentValue;
+                currentValue = 0;
+                numDigits = 0;
+            } else
+                return null;
+        }
+        /* Must have 4 octets. */
+        if (currentOctet != 3)
+            return null;
+        /* The fourth octet can't be empty. */
+        if (numDigits == 0)
+            return null;
+        values[currentOctet] = (byte) currentValue;
+        return values;
+    }
+
+    // org.xbill.DNS.Address.parseV6
+    @Nullable
+    private static byte[] parseV6(String s) {
+        int range = -1;
+        byte[] data = new byte[16];
+
+        String[] tokens = s.split(":", -1);
+
+        int first = 0;
+        int last = tokens.length - 1;
+
+        if (tokens[0].length() == 0) {
+            // If the first two tokens are empty, it means the string
+            // started with ::, which is fine.  If only the first is
+            // empty, the string started with :, which is bad.
+            if (last - first > 0 && tokens[1].length() == 0)
+                first++;
+            else
+                return null;
+        }
+
+        if (tokens[last].length() == 0) {
+            // If the last two tokens are empty, it means the string
+            // ended with ::, which is fine.  If only the last is
+            // empty, the string ended with :, which is bad.
+            if (last - first > 0 && tokens[last - 1].length() == 0)
+                last--;
+            else
+                return null;
+        }
+
+        if (last - first + 1 > 8)
+            return null;
+
+        int i, j;
+        for (i = first, j = 0; i <= last; i++) {
+            if (tokens[i].length() == 0) {
+                if (range >= 0)
+                    return null;
+                range = j;
+                continue;
+            }
+
+            if (tokens[i].indexOf('.') >= 0) {
+                // An IPv4 address must be the last component
+                if (i < last)
+                    return null;
+                // There can't have been more than 6 components.
+                if (i > 6)
+                    return null;
+                byte[] v4addr = parseV4(tokens[i]);
+                if (v4addr == null)
+                    return null;
+                for (int k = 0; k < 4; k++)
+                    data[j++] = v4addr[k];
+                break;
+            }
+
+            try {
+                for (int k = 0; k < tokens[i].length(); k++) {
+                    char c = tokens[i].charAt(k);
+                    if (Character.digit(c, 16) < 0)
+                        return null;
+                }
+                int x = Integer.parseInt(tokens[i], 16);
+                if (x > 0xFFFF || x < 0)
+                    return null;
+                data[j++] = (byte) (x >>> 8);
+                data[j++] = (byte) (x & 0xFF);
+            } catch (NumberFormatException e) {
+                return null;
+            }
+        }
+
+        if (j < 16 && range < 0)
+            return null;
+
+        if (range >= 0) {
+            int empty = 16 - j;
+            System.arraycopy(data, range, data, range + empty, j - range);
+            for (i = range; i < range + empty; i++)
+                data[i] = 0;
+        }
+
+        return data;
+    }
+
+    /**
+     * Gets a InetAddress with the host.
+     */
+    @Nullable
+    public List<InetAddress> get(String host) {
+        if (!isValidHost(host)) {
+            return null;
+        }
+        try (Cursor cursor = db.rawQuery("SELECT * FROM " + TABLE_HOSTS + " WHERE " + COLUMN_HOST + " = ?;", new String[]{host})) {
+            if (cursor.moveToNext()) {
+                String[] ips = SqlUtils.getString(cursor, COLUMN_IP, null).split("\\+");
+                List<InetAddress> addresses = new ArrayList<>();
+                for (String ip : ips) {
+                    addresses.add(toInetAddress(host, ip));
+                }
+                return addresses;
+            } else {
+                return null;
+            }
+        }
+    }
+
+    public boolean contains(String host) {
+        try (Cursor cursor = db.rawQuery("SELECT * FROM " + TABLE_HOSTS + " WHERE " + COLUMN_HOST + " = ?;", new String[]{host})) {
+            return cursor.moveToNext();
+        }
+    }
+
+    /**
+     * Puts the host-ip pair into this hosts.
+     */
+    public boolean put(String host, String ip) {
+        if (!isValidHost(host) || !isValidIp(ip)) {
+            return false;
+        }
+
+        ContentValues values = new ContentValues();
+        values.put(COLUMN_HOST, host);
+        values.put(COLUMN_IP, ip);
+
+        if (contains(host)) {
+            db.update(TABLE_HOSTS, values, COLUMN_HOST + " = ?", new String[]{host});
+        } else {
+            db.insert(TABLE_HOSTS, null, values);
+        }
+
+        return true;
+    }
+
+    /**
+     * Puts delete the entry with the host.
+     */
+    public void delete(String host) {
+        db.delete(TABLE_HOSTS, COLUMN_HOST + " = ?", new String[]{host});
+    }
+
+    /**
+     * Get all data from this host.
+     */
+    public List<Pair<String, String>> getAll() {
+        List<Pair<String, String>> result = new ArrayList<>();
+
+        try (Cursor cursor = db.rawQuery("SELECT * FROM " + TABLE_HOSTS + ";", null)) {
+            while (cursor.moveToNext()) {
+                String host = SqlUtils.getString(cursor, COLUMN_HOST, null);
+                String ip = SqlUtils.getString(cursor, COLUMN_IP, null);
+                result.add(new Pair<>(host, ip));
+            }
+        }
+        return result;
+    }
+}

app/src/main/java/com/hippo/ehviewer/Settings.java

@@ -0,0 +1,756 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.ehviewer;
+
+import android.content.SharedPreferences;
+import android.net.Uri;
+import android.util.Log;
+
+import androidx.annotation.DimenRes;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.preference.PreferenceManager;
+
+import com.hippo.ehviewer.client.EhConfig;
+import com.hippo.ehviewer.client.data.FavListUrlBuilder;
+import com.hippo.ehviewer.ui.CommonOperations;
+import com.hippo.ehviewer.ui.scene.GalleryListScene;
+import com.hippo.unifile.UniFile;
+import com.hippo.yorozuya.AssertUtilsKt;
+import com.hippo.yorozuya.NumberUtils;
+
+import java.util.Locale;
+import java.util.Set;
+
+public class Settings {
+
+    /********************
+     ****** Eh
+     ********************/
+
+    public static final String KEY_THEME = "theme";
+
+    public static final String KEY_ACCOUNT = "account";
+    public static final String KEY_IMAGE_LIMITS = "image_limits";
+    public static final String KEY_U_CONFIG = "uconfig";
+    public static final String KEY_MY_TAGS = "mytags";
+    public static final String KEY_BLACK_DARK_THEME = "black_dark_theme";
+    public static final int THEME_SYSTEM = -1;
+    public static final String KEY_GALLERY_SITE = "gallery_site";
+    public static final String KEY_LIST_MODE = "list_mode";
+    public static final String KEY_DETAIL_SIZE = "detail_size";
+    public static final String KEY_THUMB_SIZE = "thumb_size_";
+    public static final String KEY_THUMB_RESOLUTION = "thumb_resolution";
+    public static final String KEY_SHOW_JPN_TITLE = "show_jpn_title";
+    public static final String KEY_SHOW_TAG_TRANSLATIONS = "show_tag_translations";
+    public static final String KEY_TAG_TRANSLATIONS_SOURCE = "tag_translations_source";
+    public static final String KEY_DEFAULT_CATEGORIES = "default_categories";
+    public static final int DEFAULT_DEFAULT_CATEGORIES = EhConfig.ALL_CATEGORY;
+    public static final String KEY_EXCLUDED_TAG_NAMESPACES = "excluded_tag_namespaces";
+    public static final String KEY_EXCLUDED_LANGUAGES = "excluded_languages";
+    public static final String KEY_REQUEST_NEWS = "request_news";
+    public static final String KEY_REQUEST_NEWS_TIMER = "request_news_timer";
+    public static final String KEY_REQUEST_NEWS_TIMER_HOUR = "request_news_timer_hour";
+    public static final String KEY_REQUEST_NEWS_TIMER_MINUTE = "request_news_timer_minute";
+    public static final String KEY_HIDE_HV_EVENTS = "hide_hv_events";
+    public static final String[] SIGN_IN_REQUIRED = {
+            KEY_IMAGE_LIMITS,
+            KEY_GALLERY_SITE,
+            KEY_U_CONFIG,
+            KEY_MY_TAGS,
+            KEY_SHOW_JPN_TITLE,
+            KEY_REQUEST_NEWS,
+            KEY_REQUEST_NEWS_TIMER,
+            KEY_HIDE_HV_EVENTS
+    };
+    /********************
+     ****** Privacy and Security
+     ********************/
+    public static final String KEY_SEC_SECURITY = "enable_secure";
+    public static final boolean VALUE_SEC_SECURITY = false;
+    /********************
+     ****** Download
+     ********************/
+    public static final String KEY_DOWNLOAD_SAVE_SCHEME = "image_scheme";
+    public static final String KEY_DOWNLOAD_SAVE_AUTHORITY = "image_authority";
+    public static final String KEY_DOWNLOAD_SAVE_PATH = "image_path";
+    public static final String KEY_NOTIFICATION_REQUIRED = "notification_required";
+    public static final String KEY_DOWNLOAD_SAVE_QUERY = "image_query";
+    public static final String KEY_DOWNLOAD_SAVE_FRAGMENT = "image_fragment";
+    public static final String KEY_MEDIA_SCAN = "media_scan";
+    public static final String KEY_IMAGE_RESOLUTION = "image_size";
+    public static final String DEFAULT_IMAGE_RESOLUTION = EhConfig.IMAGE_SIZE_AUTO;
+    public static final int INVALID_DEFAULT_FAV_SLOT = -2;
+    /********************
+     ****** Advanced
+     ********************/
+    public static final String KEY_SAVE_PARSE_ERROR_BODY = "save_parse_error_body";
+    public static final String KEY_SECURITY = "require_unlock";
+    public static final String KEY_SECURITY_DELAY = "require_unlock_delay";
+    public static final String KEY_READ_CACHE_SIZE = "read_cache_size";
+    public static final int DEFAULT_READ_CACHE_SIZE = 320;
+    public static final String KEY_BUILT_IN_HOSTS = "built_in_hosts_2";
+    public static final String KEY_DOMAIN_FRONTING = "domain_fronting";
+    public static final String KEY_BYPASS_VPN = "bypass_vpn";
+    public static final String KEY_LIST_THUMB_SIZE = "list_tile_size";
+    private static final boolean DEFAULT_HIDE_HV_EVENTS = false;
+    private static final String KEY_SHOW_COMMENTS = "show_gallery_comments";
+    private static final boolean DEFAULT_SHOW_COMMENTS = true;
+    private static final String TAG = Settings.class.getSimpleName();
+    private static final String KEY_DISPLAY_NAME = "display_name";
+    private static final String DEFAULT_DISPLAY_NAME = null;
+    private static final int DEFAULT_LIST_THUMB_SIZE = 40;
+    private static final String KEY_AVATAR = "avatar";
+    private static final String KEY_REMOVE_IMAGE_FILES = "include_pic";
+    private static final boolean DEFAULT_REMOVE_IMAGE_FILES = true;
+    private static final String KEY_NEED_SIGN_IN = "need_sign_in";
+    private static final boolean DEFAULT_NEED_SIGN_IN = true;
+    private static final String KEY_SELECT_SITE = "select_site";
+    private static final boolean DEFAULT_SELECT_SITE = true;
+    private static final int DEFAULT_THEME = THEME_SYSTEM;
+    private static final int DEFAULT_GALLERY_SITE = 1;
+    private static final String KEY_LAUNCH_PAGE = "launch_page";
+    private static final int DEFAULT_LAUNCH_PAGE = 0;
+    private static final int DEFAULT_LIST_MODE = 0;
+    private static final int DEFAULT_DETAIL_SIZE = 0;
+    private static final int DEFAULT_THUMB_SIZE = 120;
+    private static final int DEFAULT_THUMB_RESOLUTION = 0;
+    private static final boolean DEFAULT_SHOW_JPN_TITLE = false;
+    private static final String KEY_SHOW_GALLERY_PAGES = "show_gallery_pages";
+    private static final boolean DEFAULT_SHOW_GALLERY_PAGES = false;
+    private static final boolean DEFAULT_SHOW_TAG_TRANSLATIONS = false;
+    private static final int DEFAULT_EXCLUDED_TAG_NAMESPACES = 0;
+    private static final String DEFAULT_EXCLUDED_LANGUAGES = null;
+    private static final String KEY_METERED_NETWORK_WARNING = "cellular_network_warning";
+    private static final boolean DEFAULT_METERED_NETWORK_WARNING = false;
+    private static final String KEY_APP_LINK_VERIFY_TIP = "app_link_verify_tip";
+    private static final boolean DEFAULT_APP_LINK_VERIFY_TIP = false;
+    private static final boolean DEFAULT_MEDIA_SCAN = false;
+    private static final String KEY_RECENT_DOWNLOAD_LABEL = "recent_download_label";
+    private static final String DEFAULT_RECENT_DOWNLOAD_LABEL = null;
+    private static final String KEY_HAS_DEFAULT_DOWNLOAD_LABEL = "has_default_download_label";
+    private static final boolean DEFAULT_HAS_DOWNLOAD_LABEL = false;
+    private static final String KEY_DEFAULT_DOWNLOAD_LABEL = "default_download_label";
+    private static final String DEFAULT_DOWNLOAD_LABEL = null;
+    private static final String KEY_MULTI_THREAD_DOWNLOAD = "download_thread";
+    private static final int DEFAULT_MULTI_THREAD_DOWNLOAD = 3;
+    private static final String KEY_PRELOAD_IMAGE = "preload_image";
+    private static final int DEFAULT_PRELOAD_IMAGE = 5;
+    private static final String KEY_DOWNLOAD_ORIGIN_IMAGE = "download_origin_image";
+    private static final boolean DEFAULT_DOWNLOAD_ORIGIN_IMAGE = false;
+    /********************
+     ****** Favorites
+     ********************/
+    private static final String KEY_FAV_CAT_0 = "fav_cat_0";
+    private static final String KEY_FAV_CAT_1 = "fav_cat_1";
+    private static final String KEY_FAV_CAT_2 = "fav_cat_2";
+    private static final String KEY_FAV_CAT_3 = "fav_cat_3";
+    private static final String KEY_FAV_CAT_4 = "fav_cat_4";
+    private static final String KEY_FAV_CAT_5 = "fav_cat_5";
+    private static final String KEY_FAV_CAT_6 = "fav_cat_6";
+    private static final String KEY_FAV_CAT_7 = "fav_cat_7";
+    private static final String KEY_FAV_CAT_8 = "fav_cat_8";
+    private static final String KEY_FAV_CAT_9 = "fav_cat_9";
+    private static final String DEFAULT_FAV_CAT_0 = "Favorites 0";
+    private static final String DEFAULT_FAV_CAT_1 = "Favorites 1";
+    private static final String DEFAULT_FAV_CAT_2 = "Favorites 2";
+    private static final String DEFAULT_FAV_CAT_3 = "Favorites 3";
+    private static final String DEFAULT_FAV_CAT_4 = "Favorites 4";
+    private static final String DEFAULT_FAV_CAT_5 = "Favorites 5";
+    private static final String DEFAULT_FAV_CAT_6 = "Favorites 6";
+    private static final String DEFAULT_FAV_CAT_7 = "Favorites 7";
+    private static final String DEFAULT_FAV_CAT_8 = "Favorites 8";
+    private static final String DEFAULT_FAV_CAT_9 = "Favorites 9";
+    private static final String KEY_FAV_COUNT_0 = "fav_count_0";
+    private static final String KEY_FAV_COUNT_1 = "fav_count_1";
+    private static final String KEY_FAV_COUNT_2 = "fav_count_2";
+    private static final String KEY_FAV_COUNT_3 = "fav_count_3";
+    private static final String KEY_FAV_COUNT_4 = "fav_count_4";
+    private static final String KEY_FAV_COUNT_5 = "fav_count_5";
+    private static final String KEY_FAV_COUNT_6 = "fav_count_6";
+    private static final String KEY_FAV_COUNT_7 = "fav_count_7";
+    private static final String KEY_FAV_COUNT_8 = "fav_count_8";
+    private static final String KEY_FAV_COUNT_9 = "fav_count_9";
+    private static final String KEY_FAV_LOCAL = "fav_local";
+    private static final String KEY_FAV_CLOUD = "fav_cloud";
+    private static final int DEFAULT_FAV_COUNT = 0;
+    private static final String KEY_RECENT_FAV_CAT = "recent_fav_cat";
+    private static final int DEFAULT_RECENT_FAV_CAT = FavListUrlBuilder.FAV_CAT_ALL;
+    // -1 for local, 0 - 9 for cloud favorite, other for no default fav slot
+    private static final String KEY_DEFAULT_FAV_SLOT = "default_favorite_2";
+    private static final int DEFAULT_DEFAULT_FAV_SLOT = INVALID_DEFAULT_FAV_SLOT;
+    private static final boolean DEFAULT_SAVE_PARSE_ERROR_BODY = true;
+    private static final String KEY_SAVE_CRASH_LOG = "save_crash_log";
+    private static final boolean DEFAULT_SAVE_CRASH_LOG = true;
+    private static final boolean DEFAULT_BUILT_IN_HOSTS = false;
+    private static final boolean DEFAULT_FRONTING = false;
+    private static final boolean DEFAULT_BYPASS_VPN = true;
+    private static final String KEY_PROXY_TYPE = "proxy_type";
+    private static final int DEFAULT_PROXY_TYPE = EhProxySelector.TYPE_SYSTEM;
+    private static final String KEY_PROXY_IP = "proxy_ip";
+    private static final String DEFAULT_PROXY_IP = null;
+    private static final String KEY_PROXY_PORT = "proxy_port";
+    private static final int DEFAULT_PROXY_PORT = -1;
+    private static final String KEY_CLIPBOARD_TEXT_HASH_CODE = "clipboard_text_hash_code";
+    private static final int DEFAULT_CLIPBOARD_TEXT_HASH_CODE = 0;
+    private static final String KEY_DOWNLOAD_DELAY = "download_delay";
+    private static final int DEFAULT_DOWNLOAD_DELAY = 0;
+    private static final boolean DEFAULT_REQUEST_NEWS = false;
+    private static final String KEY_ARCHIVE_PASSWDS = "archive_passwds";
+    private static final String KEY_QS_SAVE_PROGRESS = "qs_save_progress";
+    private static final boolean DEFAULT_QS_SAVE_PROGRESS = true;
+    public static boolean LIST_THUMB_SIZE_INITED = false;
+    public static SharedPreferences sSettingsPre;
+    private static int LIST_THUMB_SIZE = 40;
+    private static EhConfig sEhConfig;
+
+    public static void initialize() {
+        sSettingsPre = PreferenceManager.getDefaultSharedPreferences(EhApplication.getApplication());
+        sEhConfig = loadEhConfig();
+        fixDefaultValue();
+    }
+
+    private static void fixDefaultValue() {
+        if ("CN".equals(Locale.getDefault().getCountry())) {
+            // Enable domain fronting if the country is CN
+            if (!sSettingsPre.contains(KEY_BUILT_IN_HOSTS)) {
+                putBuiltInHosts(true);
+            }
+            if (!sSettingsPre.contains(KEY_DOMAIN_FRONTING)) {
+                putDF(true);
+            }
+            // Enable show tag translations if the country is CN
+            if (!sSettingsPre.contains(KEY_SHOW_TAG_TRANSLATIONS)) {
+                putShowTagTranslations(true);
+
+            }
+        }
+    }
+
+    private static EhConfig loadEhConfig() {
+        EhConfig ehConfig = new EhConfig();
+        ehConfig.imageSize = getImageResolution();
+        ehConfig.excludedLanguages = getExcludedLanguages();
+        ehConfig.defaultCategories = getDefaultCategories();
+        ehConfig.excludedNamespaces = getExcludedTagNamespaces();
+        ehConfig.setDirty();
+        return ehConfig;
+    }
+
+    public static boolean getBoolean(String key, boolean defValue) {
+        try {
+            return sSettingsPre.getBoolean(key, defValue);
+        } catch (ClassCastException e) {
+            Log.d(TAG, "Get ClassCastException when get " + key + " value", e);
+            return defValue;
+        }
+    }
+
+    public static void putBoolean(String key, boolean value) {
+        sSettingsPre.edit().putBoolean(key, value).apply();
+    }
+
+    public static int getInt(String key, int defValue) {
+        try {
+            return sSettingsPre.getInt(key, defValue);
+        } catch (ClassCastException e) {
+            Log.d(TAG, "Get ClassCastException when get " + key + " value", e);
+            return defValue;
+        }
+    }
+
+    public static void putInt(String key, int value) {
+        sSettingsPre.edit().putInt(key, value).apply();
+    }
+
+    public static String getString(String key, String defValue) {
+        try {
+            return sSettingsPre.getString(key, defValue);
+        } catch (ClassCastException e) {
+            Log.d(TAG, "Get ClassCastException when get " + key + " value", e);
+            return defValue;
+        }
+    }
+
+    public static void putString(String key, String value) {
+        sSettingsPre.edit().putString(key, value).apply();
+    }
+
+    public static Set<String> getStringSet(String key) {
+        return sSettingsPre.getStringSet(key, null);
+    }
+
+    public static void putStringToStringSet(String key, String value) {
+        Set<String> set = getStringSet(key);
+        if (set == null)
+            set = Set.of(value);
+        else if (set.contains(value))
+            return;
+        else
+            set.add(value);
+        sSettingsPre.edit().putStringSet(key, set).apply();
+    }
+
+    public static int getIntFromStr(String key, int defValue) {
+        try {
+            return NumberUtils.parseIntSafely(sSettingsPre.getString(key, Integer.toString(defValue)), defValue);
+        } catch (ClassCastException e) {
+            Log.d(TAG, "Get ClassCastException when get " + key + " value", e);
+            return defValue;
+        }
+    }
+
+    public static void putIntToStr(String key, int value) {
+        sSettingsPre.edit().putString(key, Integer.toString(value)).apply();
+    }
+
+    @Nullable
+    public static String getDisplayName() {
+        return getString(KEY_DISPLAY_NAME, DEFAULT_DISPLAY_NAME);
+    }
+
+    public static void putDisplayName(String value) {
+        putString(KEY_DISPLAY_NAME, value);
+    }
+
+    public static void putAvatar(String value) {
+        putString(KEY_AVATAR, value);
+    }
+
+    public static boolean getRemoveImageFiles() {
+        return getBoolean(KEY_REMOVE_IMAGE_FILES, DEFAULT_REMOVE_IMAGE_FILES);
+    }
+
+    public static void putRemoveImageFiles(boolean value) {
+        putBoolean(KEY_REMOVE_IMAGE_FILES, value);
+    }
+
+    public static EhConfig getEhConfig() {
+        return sEhConfig;
+    }
+
+    public static boolean getNeedSignIn() {
+        return getBoolean(KEY_NEED_SIGN_IN, DEFAULT_NEED_SIGN_IN);
+    }
+
+    public static void putNeedSignIn(boolean value) {
+        putBoolean(KEY_NEED_SIGN_IN, value);
+    }
+
+    public static boolean getSelectSite() {
+        return getBoolean(KEY_SELECT_SITE, DEFAULT_SELECT_SITE);
+    }
+
+    public static void putSelectSite(boolean value) {
+        putBoolean(KEY_SELECT_SITE, value);
+    }
+
+    public static int getTheme() {
+        return getIntFromStr(KEY_THEME, DEFAULT_THEME);
+    }
+
+    public static int getGallerySite() {
+        return getIntFromStr(KEY_GALLERY_SITE, DEFAULT_GALLERY_SITE);
+    }
+
+    public static void putGallerySite(int value) {
+        putIntToStr(KEY_GALLERY_SITE, value);
+    }
+
+    public static String getLaunchPageGalleryListSceneAction() {
+        int value = getIntFromStr(KEY_LAUNCH_PAGE, DEFAULT_LAUNCH_PAGE);
+        return switch (value) {
+            case 0 -> GalleryListScene.ACTION_HOMEPAGE;
+            case 1 -> GalleryListScene.ACTION_SUBSCRIPTION;
+            case 2 -> GalleryListScene.ACTION_WHATS_HOT;
+            case 3 -> GalleryListScene.ACTION_TOP_LIST;
+            default -> throw new IllegalStateException("Unexpected value: " + value);
+        };
+    }
+
+    public static int getListMode() {
+        return getIntFromStr(KEY_LIST_MODE, DEFAULT_LIST_MODE);
+    }
+
+    public static int getDetailSize() {
+        return getIntFromStr(KEY_DETAIL_SIZE, DEFAULT_DETAIL_SIZE);
+    }
+
+    @DimenRes
+    public static int getDetailSizeResId() {
+        return switch (getDetailSize()) {
+            case 0 -> R.dimen.gallery_list_column_width_long;
+            case 1 -> R.dimen.gallery_list_column_width_short;
+            default -> throw new IllegalStateException("Unexpected value: " + getDetailSize());
+        };
+    }
+
+    public static int getThumbSize() {
+        return dip2px(getInt(KEY_THUMB_SIZE, DEFAULT_THUMB_SIZE));
+    }
+
+    public static int dip2px(int dpValue) {
+        final float scale = EhApplication.getApplication().getResources().getDisplayMetrics().density;
+        return (int) (dpValue * scale + 0.5f);
+    }
+
+    public static int getThumbResolution() {
+        return getIntFromStr(KEY_THUMB_RESOLUTION, DEFAULT_THUMB_RESOLUTION);
+    }
+
+    public static boolean getShowComments() {
+        return getBoolean(KEY_SHOW_COMMENTS, DEFAULT_SHOW_COMMENTS);
+    }
+
+    public static boolean getRequestNews() {
+        return getBoolean(KEY_REQUEST_NEWS, DEFAULT_REQUEST_NEWS);
+    }
+
+    public static boolean getHideHvEvents() {
+        return getBoolean(KEY_HIDE_HV_EVENTS, DEFAULT_HIDE_HV_EVENTS);
+    }
+
+    public static boolean getShowJpnTitle() {
+        return getBoolean(KEY_SHOW_JPN_TITLE, DEFAULT_SHOW_JPN_TITLE);
+    }
+
+    public static boolean getShowGalleryPages() {
+        return getBoolean(KEY_SHOW_GALLERY_PAGES, DEFAULT_SHOW_GALLERY_PAGES);
+    }
+
+    public static boolean getShowTagTranslations() {
+        return getBoolean(KEY_SHOW_TAG_TRANSLATIONS, DEFAULT_SHOW_TAG_TRANSLATIONS);
+    }
+
+    public static void putShowTagTranslations(boolean value) {
+        putBoolean(KEY_SHOW_TAG_TRANSLATIONS, value);
+    }
+
+    public static int getDefaultCategories() {
+        return getInt(KEY_DEFAULT_CATEGORIES, DEFAULT_DEFAULT_CATEGORIES);
+    }
+
+    public static int getExcludedTagNamespaces() {
+        return getInt(KEY_EXCLUDED_TAG_NAMESPACES, DEFAULT_EXCLUDED_TAG_NAMESPACES);
+    }
+
+    public static String getExcludedLanguages() {
+        return getString(KEY_EXCLUDED_LANGUAGES, DEFAULT_EXCLUDED_LANGUAGES);
+    }
+
+    public static boolean getMeteredNetworkWarning() {
+        return getBoolean(KEY_METERED_NETWORK_WARNING, DEFAULT_METERED_NETWORK_WARNING);
+    }
+
+    public static boolean getAppLinkVerifyTip() {
+        return getBoolean(KEY_APP_LINK_VERIFY_TIP, DEFAULT_APP_LINK_VERIFY_TIP);
+    }
+
+    public static void putAppLinkVerifyTip(boolean value) {
+        putBoolean(KEY_APP_LINK_VERIFY_TIP, value);
+    }
+
+    public static boolean getEnabledSecurity() {
+        return getBoolean(KEY_SEC_SECURITY, VALUE_SEC_SECURITY);
+    }
+
+    @Nullable
+    public static UniFile getDownloadLocation() {
+        UniFile dir;
+        Uri.Builder builder = new Uri.Builder();
+        builder.scheme(getString(KEY_DOWNLOAD_SAVE_SCHEME, null));
+        builder.encodedAuthority(getString(KEY_DOWNLOAD_SAVE_AUTHORITY, null));
+        builder.encodedPath(getString(KEY_DOWNLOAD_SAVE_PATH, null));
+        builder.encodedQuery(getString(KEY_DOWNLOAD_SAVE_QUERY, null));
+        builder.encodedFragment(getString(KEY_DOWNLOAD_SAVE_FRAGMENT, null));
+        dir = UniFile.fromUri(EhApplication.getApplication(), builder.build());
+        return dir != null ? dir : UniFile.fromFile(AppConfig.getDefaultDownloadDir());
+    }
+
+    public static void putDownloadLocation(@NonNull UniFile location) {
+        Uri uri = location.getUri();
+        putString(KEY_DOWNLOAD_SAVE_SCHEME, uri.getScheme());
+        putString(KEY_DOWNLOAD_SAVE_AUTHORITY, uri.getEncodedAuthority());
+        putString(KEY_DOWNLOAD_SAVE_PATH, uri.getEncodedPath());
+        putString(KEY_DOWNLOAD_SAVE_QUERY, uri.getEncodedQuery());
+        putString(KEY_DOWNLOAD_SAVE_FRAGMENT, uri.getEncodedFragment());
+
+        if (getMediaScan()) {
+            CommonOperations.removeNoMediaFile(location);
+        } else {
+            CommonOperations.ensureNoMediaFile(location);
+        }
+    }
+
+    public static boolean getMediaScan() {
+        return getBoolean(KEY_MEDIA_SCAN, DEFAULT_MEDIA_SCAN);
+    }
+
+    public static String getRecentDownloadLabel() {
+        return getString(KEY_RECENT_DOWNLOAD_LABEL, DEFAULT_RECENT_DOWNLOAD_LABEL);
+    }
+
+    public static void putRecentDownloadLabel(String value) {
+        putString(KEY_RECENT_DOWNLOAD_LABEL, value);
+    }
+
+    public static boolean getHasDefaultDownloadLabel() {
+        return getBoolean(KEY_HAS_DEFAULT_DOWNLOAD_LABEL, DEFAULT_HAS_DOWNLOAD_LABEL);
+    }
+
+    public static void putHasDefaultDownloadLabel(boolean hasDefaultDownloadLabel) {
+        putBoolean(KEY_HAS_DEFAULT_DOWNLOAD_LABEL, hasDefaultDownloadLabel);
+    }
+
+    public static String getDefaultDownloadLabel() {
+        return getString(KEY_DEFAULT_DOWNLOAD_LABEL, DEFAULT_DOWNLOAD_LABEL);
+    }
+
+    public static void putDefaultDownloadLabel(String value) {
+        putString(KEY_DEFAULT_DOWNLOAD_LABEL, value);
+    }
+
+    public static int getMultiThreadDownload() {
+        return getIntFromStr(KEY_MULTI_THREAD_DOWNLOAD, DEFAULT_MULTI_THREAD_DOWNLOAD);
+    }
+
+    public static int getDownloadDelay() {
+        return getIntFromStr(KEY_DOWNLOAD_DELAY, DEFAULT_DOWNLOAD_DELAY);
+    }
+
+    public static int getPreloadImage() {
+        return getIntFromStr(KEY_PRELOAD_IMAGE, DEFAULT_PRELOAD_IMAGE);
+    }
+
+    public static String getImageResolution() {
+        return getString(KEY_IMAGE_RESOLUTION, DEFAULT_IMAGE_RESOLUTION);
+    }
+
+    public static void putImageResolution(String value) {
+        sEhConfig.imageSize = value;
+        sEhConfig.setDirty();
+        putString(KEY_IMAGE_RESOLUTION, value);
+    }
+
+    public static boolean getDownloadOriginImage() {
+        return getBoolean(KEY_DOWNLOAD_ORIGIN_IMAGE, DEFAULT_DOWNLOAD_ORIGIN_IMAGE);
+    }
+
+    public static String[] getFavCat() {
+        String[] favCat = new String[10];
+        favCat[0] = sSettingsPre.getString(KEY_FAV_CAT_0, DEFAULT_FAV_CAT_0);
+        favCat[1] = sSettingsPre.getString(KEY_FAV_CAT_1, DEFAULT_FAV_CAT_1);
+        favCat[2] = sSettingsPre.getString(KEY_FAV_CAT_2, DEFAULT_FAV_CAT_2);
+        favCat[3] = sSettingsPre.getString(KEY_FAV_CAT_3, DEFAULT_FAV_CAT_3);
+        favCat[4] = sSettingsPre.getString(KEY_FAV_CAT_4, DEFAULT_FAV_CAT_4);
+        favCat[5] = sSettingsPre.getString(KEY_FAV_CAT_5, DEFAULT_FAV_CAT_5);
+        favCat[6] = sSettingsPre.getString(KEY_FAV_CAT_6, DEFAULT_FAV_CAT_6);
+        favCat[7] = sSettingsPre.getString(KEY_FAV_CAT_7, DEFAULT_FAV_CAT_7);
+        favCat[8] = sSettingsPre.getString(KEY_FAV_CAT_8, DEFAULT_FAV_CAT_8);
+        favCat[9] = sSettingsPre.getString(KEY_FAV_CAT_9, DEFAULT_FAV_CAT_9);
+        return favCat;
+    }
+
+    public static void putFavCat(String[] value) {
+        AssertUtilsKt.assertEquals(10, value.length);
+        sSettingsPre.edit()
+                .putString(KEY_FAV_CAT_0, value[0])
+                .putString(KEY_FAV_CAT_1, value[1])
+                .putString(KEY_FAV_CAT_2, value[2])
+                .putString(KEY_FAV_CAT_3, value[3])
+                .putString(KEY_FAV_CAT_4, value[4])
+                .putString(KEY_FAV_CAT_5, value[5])
+                .putString(KEY_FAV_CAT_6, value[6])
+                .putString(KEY_FAV_CAT_7, value[7])
+                .putString(KEY_FAV_CAT_8, value[8])
+                .putString(KEY_FAV_CAT_9, value[9])
+                .apply();
+    }
+
+    public static int[] getFavCount() {
+        int[] favCount = new int[10];
+        favCount[0] = sSettingsPre.getInt(KEY_FAV_COUNT_0, DEFAULT_FAV_COUNT);
+        favCount[1] = sSettingsPre.getInt(KEY_FAV_COUNT_1, DEFAULT_FAV_COUNT);
+        favCount[2] = sSettingsPre.getInt(KEY_FAV_COUNT_2, DEFAULT_FAV_COUNT);
+        favCount[3] = sSettingsPre.getInt(KEY_FAV_COUNT_3, DEFAULT_FAV_COUNT);
+        favCount[4] = sSettingsPre.getInt(KEY_FAV_COUNT_4, DEFAULT_FAV_COUNT);
+        favCount[5] = sSettingsPre.getInt(KEY_FAV_COUNT_5, DEFAULT_FAV_COUNT);
+        favCount[6] = sSettingsPre.getInt(KEY_FAV_COUNT_6, DEFAULT_FAV_COUNT);
+        favCount[7] = sSettingsPre.getInt(KEY_FAV_COUNT_7, DEFAULT_FAV_COUNT);
+        favCount[8] = sSettingsPre.getInt(KEY_FAV_COUNT_8, DEFAULT_FAV_COUNT);
+        favCount[9] = sSettingsPre.getInt(KEY_FAV_COUNT_9, DEFAULT_FAV_COUNT);
+        return favCount;
+    }
+
+    public static void putFavCount(int[] count) {
+        AssertUtilsKt.assertEquals(10, count.length);
+        sSettingsPre.edit()
+                .putInt(KEY_FAV_COUNT_0, count[0])
+                .putInt(KEY_FAV_COUNT_1, count[1])
+                .putInt(KEY_FAV_COUNT_2, count[2])
+                .putInt(KEY_FAV_COUNT_3, count[3])
+                .putInt(KEY_FAV_COUNT_4, count[4])
+                .putInt(KEY_FAV_COUNT_5, count[5])
+                .putInt(KEY_FAV_COUNT_6, count[6])
+                .putInt(KEY_FAV_COUNT_7, count[7])
+                .putInt(KEY_FAV_COUNT_8, count[8])
+                .putInt(KEY_FAV_COUNT_9, count[9])
+                .apply();
+    }
+
+    public static int getFavLocalCount() {
+        return sSettingsPre.getInt(KEY_FAV_LOCAL, DEFAULT_FAV_COUNT);
+    }
+
+    public static void putFavLocalCount(int count) {
+        sSettingsPre.edit().putInt(KEY_FAV_LOCAL, count).apply();
+    }
+
+    public static int getFavCloudCount() {
+        return sSettingsPre.getInt(KEY_FAV_CLOUD, DEFAULT_FAV_COUNT);
+    }
+
+    public static void putFavCloudCount(int count) {
+        sSettingsPre.edit().putInt(KEY_FAV_CLOUD, count).apply();
+    }
+
+    public static int getRecentFavCat() {
+        return getInt(KEY_RECENT_FAV_CAT, DEFAULT_RECENT_FAV_CAT);
+    }
+
+    public static void putRecentFavCat(int value) {
+        putInt(KEY_RECENT_FAV_CAT, value);
+    }
+
+    public static int getDefaultFavSlot() {
+        return getInt(KEY_DEFAULT_FAV_SLOT, DEFAULT_DEFAULT_FAV_SLOT);
+    }
+
+    public static void putDefaultFavSlot(int value) {
+        putInt(KEY_DEFAULT_FAV_SLOT, value);
+    }
+
+    public static boolean getQSSaveProgress() {
+        return getBoolean(KEY_QS_SAVE_PROGRESS, DEFAULT_QS_SAVE_PROGRESS);
+    }
+
+    public static void putQSSaveProgress(boolean value) {
+        putBoolean(KEY_QS_SAVE_PROGRESS, value);
+    }
+
+    public static boolean getSaveParseErrorBody() {
+        return getBoolean(KEY_SAVE_PARSE_ERROR_BODY, DEFAULT_SAVE_PARSE_ERROR_BODY);
+    }
+
+    public static boolean getSaveCrashLog() {
+        return getBoolean(KEY_SAVE_CRASH_LOG, DEFAULT_SAVE_CRASH_LOG);
+    }
+
+    public static boolean getSecurity() {
+        return getBoolean(KEY_SECURITY, false);
+    }
+
+    public static void putSecurity(boolean value) {
+        putBoolean(KEY_SECURITY, value);
+    }
+
+    public static int getSecurityDelay() {
+        return getInt(KEY_SECURITY_DELAY, 0);
+    }
+
+    public static int getReadCacheSize() {
+        return getIntFromStr(KEY_READ_CACHE_SIZE, DEFAULT_READ_CACHE_SIZE);
+    }
+
+    public static boolean getBuiltInHosts() {
+        return getBoolean(KEY_BUILT_IN_HOSTS, DEFAULT_BUILT_IN_HOSTS);
+    }
+
+    public static void putBuiltInHosts(boolean value) {
+        putBoolean(KEY_BUILT_IN_HOSTS, value);
+    }
+
+    public static boolean getDF() {
+        return getBoolean(KEY_DOMAIN_FRONTING, DEFAULT_FRONTING);
+    }
+
+    public static void putDF(boolean value) {
+        putBoolean(KEY_DOMAIN_FRONTING, value);
+    }
+
+    public static boolean getBypassVpn() {
+        return getBoolean(KEY_BYPASS_VPN, DEFAULT_BYPASS_VPN);
+    }
+
+    public static int getProxyType() {
+        return getInt(KEY_PROXY_TYPE, DEFAULT_PROXY_TYPE);
+    }
+
+    public static void putProxyType(int value) {
+        putInt(KEY_PROXY_TYPE, value);
+    }
+
+    public static String getProxyIp() {
+        return getString(KEY_PROXY_IP, DEFAULT_PROXY_IP);
+    }
+
+    public static void putProxyIp(String value) {
+        putString(KEY_PROXY_IP, value);
+    }
+
+    public static int getProxyPort() {
+        return getInt(KEY_PROXY_PORT, DEFAULT_PROXY_PORT);
+    }
+
+    public static void putProxyPort(int value) {
+        putInt(KEY_PROXY_PORT, value);
+    }
+
+    public static int getClipboardTextHashCode() {
+        return getInt(KEY_CLIPBOARD_TEXT_HASH_CODE, DEFAULT_CLIPBOARD_TEXT_HASH_CODE);
+    }
+
+    public static void putClipboardTextHashCode(int value) {
+        putInt(KEY_CLIPBOARD_TEXT_HASH_CODE, value);
+    }
+
+    public static Set<String> getArchivePasswds() {
+        return getStringSet(KEY_ARCHIVE_PASSWDS);
+    }
+
+    public static void putPasswdToArchivePasswds(String value) {
+        putStringToStringSet(KEY_ARCHIVE_PASSWDS, value);
+    }
+
+    public static int getListThumbSize() {
+        if (LIST_THUMB_SIZE_INITED) {
+            return LIST_THUMB_SIZE;
+        }
+        int size = 3 * getInt(KEY_LIST_THUMB_SIZE, DEFAULT_LIST_THUMB_SIZE);
+        LIST_THUMB_SIZE = size;
+        LIST_THUMB_SIZE_INITED = true;
+        return size;
+    }
+
+    public static boolean getNotificationRequired() {
+        return getBoolean(KEY_NOTIFICATION_REQUIRED, false);
+    }
+
+    public static void putNotificationRequired() {
+        putBoolean(KEY_NOTIFICATION_REQUIRED, true);
+    }
+}

app/src/main/java/com/hippo/ehviewer/UrlOpener.java

@@ -0,0 +1,86 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.ehviewer;
+
+import android.content.ActivityNotFoundException;
+import android.content.Context;
+import android.content.Intent;
+import android.net.Uri;
+import android.text.TextUtils;
+import android.widget.Toast;
+
+import androidx.annotation.NonNull;
+import androidx.browser.customtabs.CustomTabsIntent;
+
+import com.hippo.ehviewer.client.data.GalleryDetail;
+import com.hippo.ehviewer.client.parser.GalleryPageUrlParser;
+
+import eu.kanade.tachiyomi.ui.reader.ReaderActivity;
+
+public final class UrlOpener {
+
+    private UrlOpener() {
+    }
+
+    public static void openUrl(@NonNull Context context, String url, boolean ehUrl) {
+        openUrl(context, url, ehUrl, null);
+    }
+
+    public static void openUrl(@NonNull Context context, String url, boolean ehUrl, GalleryDetail galleryDetail) {
+        if (TextUtils.isEmpty(url)) {
+            return;
+        }
+
+        Intent intent;
+        Uri uri = Uri.parse(url);
+
+        if (ehUrl) {
+            if (galleryDetail != null) {
+                GalleryPageUrlParser.Result result = GalleryPageUrlParser.parse(url);
+                if (result != null) {
+                    if (result.gid == galleryDetail.getGid()) {
+                        intent = new Intent(context, ReaderActivity.class);
+                        intent.setAction(ReaderActivity.ACTION_EH);
+                        intent.putExtra(ReaderActivity.KEY_GALLERY_INFO, galleryDetail);
+                        intent.putExtra(ReaderActivity.KEY_PAGE, result.page);
+                        context.startActivity(intent);
+                        return;
+                    }
+                } else if (url.startsWith("#c")) {
+                    try {
+                        intent = new Intent(context, ReaderActivity.class);
+                        intent.setAction(ReaderActivity.ACTION_EH);
+                        intent.putExtra(ReaderActivity.KEY_GALLERY_INFO, galleryDetail);
+                        intent.putExtra(ReaderActivity.KEY_PAGE, Integer.parseInt(url.replace("#c", "")) - 1);
+                        context.startActivity(intent);
+                        return;
+                    } catch (NumberFormatException e) {
+                        //
+                    }
+                }
+            }
+        }
+
+        CustomTabsIntent.Builder customTabsIntent = new CustomTabsIntent.Builder();
+        customTabsIntent.setShowTitle(true);
+        try {
+            customTabsIntent.build().launchUrl(context, uri);
+        } catch (ActivityNotFoundException e) {
+            Toast.makeText(context, R.string.no_browser_installed, Toast.LENGTH_LONG).show();
+        }
+    }
+}

app/src/main/java/com/hippo/ehviewer/WindowInsetsAnimationHelper.java

@@ -0,0 +1,109 @@
+/*
+ * Copyright 2022 Tarsin Norbin
+ *
+ * This file is part of EhViewer
+ *
+ * EhViewer is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * EhViewer is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with EhViewer.
+ * If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.hippo.ehviewer;
+
+import android.view.View;
+
+import androidx.annotation.NonNull;
+import androidx.core.view.WindowInsetsAnimationCompat;
+import androidx.core.view.WindowInsetsCompat;
+
+import com.hippo.yorozuya.MathUtils;
+
+import java.util.HashMap;
+import java.util.List;
+
+public class WindowInsetsAnimationHelper extends WindowInsetsAnimationCompat.Callback {
+    private final View[] views;
+    private final HashMap<View, Integer> startPaddings = new HashMap<>();
+    private final HashMap<View, Integer> endPaddings = new HashMap<>();
+    WindowInsetsAnimationCompat animation;
+
+    public WindowInsetsAnimationHelper(int dispatchMode, View... views) {
+        super(dispatchMode);
+        this.views = views;
+    }
+
+    @Override
+    public void onPrepare(@NonNull WindowInsetsAnimationCompat animation) {
+        super.onPrepare(animation);
+        this.animation = animation;
+        for (View view : views) {
+            if (view == null) {
+                continue;
+            }
+            startPaddings.put(view, view.getPaddingBottom());
+        }
+    }
+
+    @NonNull
+    @Override
+    public WindowInsetsAnimationCompat.BoundsCompat onStart(@NonNull WindowInsetsAnimationCompat animation, @NonNull WindowInsetsAnimationCompat.BoundsCompat bounds) {
+        this.animation = animation;
+        for (View view : views) {
+            if (view == null) {
+                continue;
+            }
+            endPaddings.put(view, view.getPaddingBottom());
+            int startPadding = startPaddings.containsKey(view) ? startPaddings.get(view) : 0;
+            view.setTranslationY(-(startPadding - view.getPaddingBottom()));
+        }
+        return bounds;
+    }
+
+    @NonNull
+    @Override
+    public WindowInsetsCompat onProgress(@NonNull WindowInsetsCompat insets, @NonNull List<WindowInsetsAnimationCompat> runningAnimations) {
+        if (animation == null) {
+            return insets;
+        }
+        WindowInsetsAnimationCompat imeAnimation = null;
+        for (WindowInsetsAnimationCompat animation : runningAnimations) {
+            if ((animation.getTypeMask() & WindowInsetsCompat.Type.ime()) != 0) {
+                imeAnimation = animation;
+                break;
+            }
+        }
+        if (imeAnimation != null) {
+            for (View view : views) {
+                if (view == null) {
+                    continue;
+                }
+                int startPadding = startPaddings.containsKey(view) ? startPaddings.get(view) : 0;
+                int endPadding = endPaddings.containsKey(view) ? endPaddings.get(view) : 0;
+                view.setTranslationY(MathUtils.lerp(endPadding - startPadding, 0, animation.getInterpolatedFraction()));
+            }
+        }
+        return insets;
+    }
+
+    @Override
+    public void onEnd(@NonNull WindowInsetsAnimationCompat animation) {
+        super.onEnd(animation);
+        startPaddings.clear();
+        endPaddings.clear();
+        this.animation = null;
+        for (View view : views) {
+            if (view == null) {
+                continue;
+            }
+            view.setTranslationY(0);
+        }
+    }
+}

app/src/main/java/com/hippo/ehviewer/client/EhCacheKeyFactory.kt

@@ -13,12 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package com.ehviewer.core.model
+package com.hippo.ehviewer.client
 
-import kotlinx.serialization.Serializable
-
-@Serializable
-data class GalleryTagGroup(
-    val namespace: TagNamespace,
-    val tags: List<GalleryTag>,
-)
+object EhCacheKeyFactory {
+    fun getImageKey(gid: Long, index: Int): String {
+        return "image:$gid:$index"
+    }
+}

app/src/main/java/com/hippo/ehviewer/client/EhClient.kt

@@ -0,0 +1,184 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hippo.ehviewer.client
+
+import eu.kanade.tachiyomi.util.lang.launchIO
+import eu.kanade.tachiyomi.util.lang.withUIContext
+import kotlinx.coroutines.CancellationException
+import kotlinx.coroutines.CoroutineScope
+import java.io.File
+
+object EhClient {
+    internal fun enqueue(request: EhRequest, scope: CoroutineScope) {
+        check(!request.isActive) // Abort if attempt to execute an active request
+        request.job = scope.launchIO {
+            val callback: Callback<Any?>? = request.callback
+            try {
+                val result: Any? = request.run {
+                    if (args == null)
+                        execute(method)
+                    else
+                        execute(method, *args!!)
+                }
+                withUIContext { callback?.onSuccess(result) }
+            } catch (e: Exception) {
+                if (e is CancellationException)
+                    throw e // Don't catch coroutine CancellationException
+                e.printStackTrace()
+                withUIContext { callback?.onFailure(e) }
+            }
+        }
+    }
+
+    suspend fun execute(method: Int, vararg params: Any?): Any? {
+        return when (method) {
+            METHOD_SIGN_IN -> EhEngine.signIn(
+                params[0] as String,
+                params[1] as String
+            )
+
+            METHOD_GET_GALLERY_LIST -> EhEngine.getGalleryList(
+                params[0] as String
+            )
+
+            METHOD_GET_GALLERY_DETAIL -> EhEngine.getGalleryDetail(
+                params[0] as String?
+            )
+
+            METHOD_GET_PREVIEW_SET -> EhEngine.getPreviewSet(
+                params[0] as String?
+            )
+
+            METHOD_GET_RATE_GALLERY -> EhEngine.rateGallery(
+                params[0] as Long,
+                params[1] as String?,
+                params[2] as Long,
+                params[3] as String?,
+                params[4] as Float
+            )
+
+            METHOD_GET_COMMENT_GALLERY -> EhEngine.commentGallery(
+                params[0] as String?,
+                params[1] as String,
+                params[2] as String?
+            )
+
+            METHOD_GET_GALLERY_TOKEN -> EhEngine.getGalleryToken(
+                params[0] as Long,
+                params[1] as String?,
+                params[2] as Int
+            )
+
+            METHOD_GET_FAVORITES -> EhEngine.getFavorites(
+                params[0] as String
+            )
+
+            METHOD_ADD_FAVORITES -> EhEngine.addFavorites(
+                params[0] as Long,
+                params[1] as String?,
+                params[2] as Int,
+                params[3] as String?
+            )
+
+            METHOD_ADD_FAVORITES_RANGE -> @Suppress("UNCHECKED_CAST") EhEngine.addFavoritesRange(
+                params[0] as LongArray,
+                params[1] as Array<String?>,
+                params[2] as Int
+            )
+
+            METHOD_MODIFY_FAVORITES -> EhEngine.modifyFavorites(
+                params[0] as String,
+                params[1] as LongArray,
+                params[2] as Int
+            )
+
+            METHOD_GET_TORRENT_LIST -> EhEngine.getTorrentList(
+                params[0] as String?,
+                params[1] as Long,
+                params[2] as String?
+            )
+
+            METHOD_GET_PROFILE -> EhEngine.getProfile()
+            METHOD_VOTE_COMMENT -> EhEngine.voteComment(
+                params[0] as Long,
+                params[1] as String?,
+                params[2] as Long,
+                params[3] as String?,
+                params[4] as Long,
+                params[5] as Int
+            )
+
+            METHOD_IMAGE_SEARCH -> EhEngine.imageSearch(
+                params[0] as File,
+                params[1] as Boolean,
+                params[2] as Boolean,
+                params[3] as Boolean
+            )
+
+            METHOD_ARCHIVE_LIST -> EhEngine.getArchiveList(
+                params[0] as String?,
+                params[1] as Long,
+                params[2] as String?
+            )
+
+            METHOD_DOWNLOAD_ARCHIVE -> EhEngine.downloadArchive(
+                params[0] as Long,
+                params[1] as String?,
+                params[2] as String?,
+                params[3] as String?,
+                params[4] as Boolean
+            )
+
+            METHOD_VOTE_TAG -> EhEngine.voteTag(
+                params[0] as Long,
+                params[1] as String?,
+                params[2] as Long,
+                params[3] as String?,
+                params[4] as String?,
+                params[5] as Int
+            )
+
+            METHOD_GET_UCONFIG -> EhEngine.getUConfig()
+            else -> throw IllegalStateException("Can't detect method $method")
+        }
+    }
+
+    interface Callback<E> {
+        fun onSuccess(result: E)
+        fun onFailure(e: Exception)
+        fun onCancel()
+    }
+
+    const val METHOD_SIGN_IN = 0
+    const val METHOD_GET_GALLERY_LIST = 1
+    const val METHOD_GET_GALLERY_DETAIL = 3
+    const val METHOD_GET_PREVIEW_SET = 4
+    const val METHOD_GET_RATE_GALLERY = 5
+    const val METHOD_GET_COMMENT_GALLERY = 6
+    const val METHOD_GET_GALLERY_TOKEN = 7
+    const val METHOD_GET_FAVORITES = 8
+    const val METHOD_ADD_FAVORITES = 9
+    const val METHOD_ADD_FAVORITES_RANGE = 10
+    const val METHOD_MODIFY_FAVORITES = 11
+    const val METHOD_GET_TORRENT_LIST = 12
+    const val METHOD_GET_PROFILE = 14
+    const val METHOD_VOTE_COMMENT = 15
+    const val METHOD_IMAGE_SEARCH = 16
+    const val METHOD_ARCHIVE_LIST = 17
+    const val METHOD_DOWNLOAD_ARCHIVE = 18
+    const val METHOD_VOTE_TAG = 19
+    const val METHOD_GET_UCONFIG = 20
+}

app/src/main/java/com/hippo/ehviewer/client/EhConfig.java

@@ -0,0 +1,806 @@
+/*
+ * Copyright 2015 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.ehviewer.client;
+
+import com.hippo.network.InetValidator;
+
+/**
+ * Some configurable stuff about EH. It ends up cookie.
+ */
+public class EhConfig implements Cloneable {
+
+    /**
+     * The Cookie key of uconfig
+     */
+    public static final String KEY_UCONFIG = "uconfig";
+    /**
+     * The Cookie key of lofi resolution
+     */
+    public static final String KEY_LOFI_RESOLUTION = "xres";
+    /**
+     * The Cookie key of show warning
+     */
+    public static final String KEY_CONTENT_WARNING = "nw";
+    /**
+     * load images through the Hentai@Home Network
+     */
+    public static final String LOAD_FROM_HAH_YES = "y";
+    /**
+     * do not load images through the Hentai@Home Network
+     */
+    public static final String LOAD_FROM_HAH_NO = "n";
+    /**
+     * Image Size Auto
+     */
+    public static final String IMAGE_SIZE_AUTO = "a";
+    /**
+     * Image Size 780x
+     */
+    public static final String IMAGE_SIZE_780X = "780";
+    /**
+     * Image Size 980x
+     */
+    public static final String IMAGE_SIZE_980X = "980";
+    /**
+     * Image Size 1280x
+     */
+    public static final String IMAGE_SIZE_1280X = "1280";
+    /**
+     * Image Size 1600x
+     */
+    public static final String IMAGE_SIZE_1600X = "1600";
+    /**
+     * Image Size 2400x
+     */
+    public static final String IMAGE_SIZE_2400X = "2400";
+    /**
+     * Manual Accept, Manual Start
+     */
+    public static final String ARCHIVER_DOWNLOAD_MAMS = "0";
+    /**
+     * >Manual Accept, Auto Start
+     */
+    public static final String ARCHIVER_DOWNLOAD_AAMS = "1";
+    /**
+     * Auto Accept, Manual Start
+     */
+    public static final String ARCHIVER_DOWNLOAD_MAAS = "2";
+    /**
+     * Auto Accept, Auto Start
+     */
+    public static final String ARCHIVER_DOWNLOAD_AAAS = "3";
+    /**
+     * List View on the front and search pages
+     */
+    public static final String LAYOUT_MODE_LIST = "l";
+    /**
+     * Thumbnail View on the front and search pages
+     */
+    public static final String LAYOUT_MODE_THUMB = "t";
+    public static final int MISC = 0x1;
+    public static final int DOUJINSHI = 0x2;
+    public static final int MANGA = 0x4;
+    public static final int ARTIST_CG = 0x8;
+    public static final int GAME_CG = 0x10;
+    public static final int IMAGE_SET = 0x20;
+    public static final int COSPLAY = 0x40;
+    public static final int ASIAN_PORN = 0x80;
+    public static final int NON_H = 0x100;
+    public static final int WESTERN = 0x200;
+    public static final int ALL_CATEGORY = 0x3ff;
+    public static final int NAMESPACES_RECLASS = 0x1;
+    public static final int NAMESPACES_LANGUAGE = 0x2;
+    public static final int NAMESPACES_PARODY = 0x4;
+    public static final int NAMESPACES_CHARACTER = 0x8;
+    public static final int NAMESPACES_GROUP = 0x10;
+    public static final int NAMESPACES_ARTIST = 0x20;
+    public static final int NAMESPACES_MALE = 0x40;
+    public static final int NAMESPACES_FEMALE = 0x80;
+    public static final String JAPANESE_ORIGINAL = "0";
+    public static final String JAPANESE_TRANSLATED = "1024";
+    public static final String JAPANESE_REWRITE = "2048";
+    public static final String ENGLISH_ORIGINAL = "1";
+    public static final String ENGLISH_TRANSLATED = "1025";
+    public static final String ENGLISH_REWRITE = "2049";
+    public static final String CHINESE_ORIGINAL = "10";
+    public static final String CHINESE_TRANSLATED = "1034";
+    public static final String CHINESE_REWRITE = "2058";
+    public static final String DUTCH_ORIGINAL = "20";
+    public static final String DUTCH_TRANSLATED = "1044";
+    public static final String DUTCH_REWRITE = "2068";
+    public static final String FRENCH_ORIGINAL = "30";
+    public static final String FRENCH_TRANSLATED = "1054";
+    public static final String FRENCH_REWRITE = "2078";
+    public static final String GERMAN_ORIGINAL = "40";
+    public static final String GERMAN_TRANSLATED = "1064";
+    public static final String GERMAN_REWRITE = "2088";
+    public static final String HUNGARIAN_ORIGINAL = "50";
+    public static final String HUNGARIAN_TRANSLATED = "1074";
+    public static final String HUNGARIAN_REWRITE = "2098";
+    public static final String ITALIAN_ORIGINAL = "60";
+    public static final String ITALIAN_TRANSLATED = "1084";
+    public static final String ITALIAN_REWRITE = "2108";
+    public static final String KOREAN_ORIGINAL = "70";
+    public static final String KOREAN_TRANSLATED = "1094";
+    public static final String KOREAN_REWRITE = "2118";
+    public static final String POLISH_ORIGINAL = "80";
+    public static final String POLISH_TRANSLATED = "1104";
+    public static final String POLISH_REWRITE = "2128";
+    public static final String PORTUGUESE_ORIGINAL = "90";
+    public static final String PORTUGUESE_TRANSLATED = "1114";
+    public static final String PORTUGUESE_REWRITE = "2138";
+    public static final String RUSSIAN_ORIGINAL = "100";
+    public static final String RUSSIAN_TRANSLATED = "1124";
+    public static final String RUSSIAN_REWRITE = "2148";
+    public static final String SPANISH_ORIGINAL = "110";
+    public static final String SPANISH_TRANSLATED = "1134";
+    public static final String SPANISH_REWRITE = "2158";
+    public static final String THAI_ORIGINAL = "120";
+    public static final String THAI_TRANSLATED = "1144";
+    public static final String THAI_REWRITE = "2168";
+    public static final String VIETNAMESE_ORIGINAL = "130";
+    public static final String VIETNAMESE_TRANSLATED = "1154";
+    public static final String VIETNAMESE_REWRITE = "2178";
+    public static final String NA_ORIGINAL = "254";
+    public static final String NA_TRANSLATED = "1278";
+    public static final String NA_REWRITE = "2302";
+    public static final String OTHER_ORIGINAL = "255";
+    public static final String OTHER_TRANSLATED = "1279";
+    public static final String OTHER_REWRITE = "2303";
+    /**
+     * 25 results per page for the index/search page and torrent search pages
+     */
+    public static final String RESULT_COUNT_25 = "0";
+    /**
+     * 50 results per page for the index/search page and torrent search pages
+     */
+    public static final String RESULT_COUNT_50 = "1";
+    /**
+     * 100 results per page for the index/search page and torrent search pages
+     */
+    public static final String RESULT_COUNT_100 = "2";
+    /**
+     * 200 results per page for the index/search page and torrent search pages
+     */
+    public static final String RESULT_COUNT_200 = "3";
+    /**
+     * On mouse-over
+     */
+    public static final String MOUSE_OVER_YES = "m";
+    /**
+     * On page load
+     */
+    public static final String MOUSE_OVER_NO = "p";
+    /**
+     * Preview normal size
+     */
+    public static final String PREVIEW_SIZE_NORMAL = "m";
+    /**
+     * Preview large size
+     */
+    public static final String PREVIEW_SIZE_LARGE = "l";
+    /**
+     * 4 row preview per page
+     */
+    public static final String PREVIEW_ROW_4 = "2";
+    /**
+     * 10 row preview per page
+     */
+    public static final String PREVIEW_ROW_10 = "5";
+    /**
+     * 20 row preview per page
+     */
+    public static final String PREVIEW_ROW_20 = "10";
+    /**
+     * 40 row preview per page
+     */
+    public static final String PREVIEW_ROW_40 = "20";
+    /**
+     * Oldest comments first
+     */
+    public static final String COMMENTS_SORT_OLDEST_FIRST = "a";
+    /**
+     * Recent comments first
+     */
+    public static final String COMMENTS_SORT_RECENT_FIRST = "d";
+    /**
+     * By highest score
+     */
+    public static final String COMMENTS_SORT_HIGHEST_SCORE_FIRST = "s";
+    /**
+     * Show gallery comment votes On score hover or click
+     */
+    public static final String COMMENTS_VOTES_POP = "0";
+    /**
+     * Always show gallery comment votes
+     */
+    public static final String COMMENTS_VOTES_ALWAYS = "1";
+    /**
+     * Sort order for gallery tags alphabetically
+     */
+    public static final String TAGS_SORT_ALPHABETICAL = "a";
+    /**
+     * Sort order for gallery tags by tag power
+     */
+    public static final String TAGS_SORT_POWER = "p";
+    /**
+     * Show gallery page numbers
+     */
+    public static final String SHOW_GALLERY_INDEX_YES = "1";
+    /**
+     * Do not show gallery page numbers
+     */
+    public static final String SHOW_GALLERY_INDEX_NO = "0";
+    /**
+     * Enable Tag Flagging
+     */
+    public static final String ENABLE_TAG_FLAGGING_YES = "y";
+    /**
+     * Do not enable Tag Flagging
+     */
+    public static final String ENABLE_TAG_FLAGGING_NO = "n";
+    /**
+     * Always display the original images
+     */
+    public static final String ALWAYS_ORIGINAL_YES = "y";
+    /**
+     * Do not Always display the original images
+     */
+    public static final String ALWAYS_ORIGINAL_NO = "n";
+    /**
+     * Enable the Multi-Page Viewe
+     */
+    public static final String MULTI_PAGE_YES = "y";
+    /**
+     * Do not enable the Multi-Page Viewe
+     */
+    public static final String MULTI_PAGE_NO = "n";
+    /**
+     * Align left, only scale if image is larger than browser width
+     */
+    public static final String MULTI_PAGE_STYLE_N = "n";
+    /**
+     * Align center, only scale if image is larger than browser width
+     */
+    public static final String MULTI_PAGE_STYLE_C = "c";
+    /**
+     * Align center, Always scale images to fit browser width
+     */
+    public static final String MULTI_PAGE_STYLE_Y = "y";
+    /**
+     * Show Multi-Page Viewer Thumbnail Pane
+     */
+    public static final String MULTI_PAGE_THUMB_SHOW = "n";
+    /**
+     * Hide Multi-Page Viewer Thumbnail Pane
+     */
+    public static final String MULTI_PAGE_THUMB_HIDE = "y";
+    /**
+     * 460x for lofi resolution
+     */
+    public static final String LOFI_RESOLUTION_460X = "1";
+    /**
+     * 780X for lofi resolution
+     */
+    public static final String LOFI_RESOLUTION_780X = "2";
+    /**
+     * 980X for lofi resolution
+     */
+    public static final String LOFI_RESOLUTION_980X = "3";
+    /**
+     * show warning
+     */
+    public static final String CONTENT_WARNING_SHOW = "0";
+    /**
+     * not show warning
+     */
+    public static final String CONTENT_WARNING_NOT_SHOW = "1";
+    /**
+     * The key of load images through the Hentai@Home Network
+     *
+     * @see #LOAD_FROM_HAH_YES
+     * @see #LOAD_FROM_HAH_NO
+     */
+    private static final String KEY_LOAD_FROM_HAH = "uh";
+    /**
+     * The key of Image Size Settings
+     *
+     * @see #IMAGE_SIZE_AUTO
+     * @see #IMAGE_SIZE_780X
+     * @see #IMAGE_SIZE_980X
+     * @see #IMAGE_SIZE_1280X
+     * @see #IMAGE_SIZE_1600X
+     * @see #IMAGE_SIZE_2400X
+     */
+    private static final String KEY_IMAGE_SIZE = "xr";
+    /**
+     * The key of scale images width
+     */
+    private static final String KEY_SCALE_WIDTH = "rx";
+    /**
+     * The key of scale images height
+     */
+    private static final String KEY_SCALE_HEIGHT = "ry";
+    /**
+     * The key of Gallery Name Display
+     *
+     * @see #GALLERY_TITLE_DEFAULT
+     * @see #GALLERY_TITLE_JAPANESE
+     */
+    private static final String KEY_GALLERY_TITLE = "tl";
+    /**
+     * The key of the behavior for downloading archiver
+     *
+     * @see #ARCHIVER_DOWNLOAD_MAMS
+     * @see #ARCHIVER_DOWNLOAD_MAAS
+     * @see #ARCHIVER_DOWNLOAD_AAMS
+     * @see #ARCHIVER_DOWNLOAD_AAAS
+     */
+    private static final String KEY_ARCHIVER_DOWNLOAD = "ar";
+    /**
+     * The key of display mode would you like to use on the front and search pages
+     *
+     * @see #LAYOUT_MODE_LIST
+     * @see #LAYOUT_MODE_THUMB
+     */
+    private static final String KEY_LAYOUT_MODE = "dm";
+    /**
+     * The key for show popular
+     *
+     * @see #POPULAR_YES
+     * @see #POPULAR_NO
+     */
+    private static final String KEY_POPULAR = "prn";
+    /**
+     * The key of categories would you like to view as default on the front page
+     */
+    private static final String KEY_DEFAULT_CATEGORIES = "cats";
+    /**
+     * The key for favorites sort
+     *
+     * @see #FAVORITES_SORT_GALLERY_UPDATE_TIME
+     * @see #FAVORITES_SORT_FAVORITED_TIME
+     */
+    private static final String KEY_FAVORITES_SORT = "fs";
+    /**
+     * The key of exclude certain namespaces from a default tag search
+     */
+    private static final String KEY_EXCLUDED_NAMESPACES = "xns";
+    /**
+     * The key of hide galleries in certain languages from the gallery list and searches
+     */
+    private static final String KEY_EXCLUDED_LANGUAGES = "xl";
+    /**
+     * The key of how many results would you like per page for the index/search page and torrent search pages
+     *
+     * @see #RESULT_COUNT_25
+     * @see #RESULT_COUNT_50
+     * @see #RESULT_COUNT_100
+     * @see #RESULT_COUNT_200
+     */
+    private static final String KEY_RESULT_COUNT = "rc";
+    /**
+     * The key of mouse-over thumb
+     *
+     * @see #MOUSE_OVER_YES
+     * @see #MOUSE_OVER_NO
+     */
+    private static final String KEY_MOUSE_OVER = "lt";
+    /**
+     * The key of preview size
+     *
+     * @see #PREVIEW_SIZE_NORMAL
+     * @see #PREVIEW_SIZE_LARGE
+     */
+    private static final String KEY_PREVIEW_SIZE = "ts";
+    /**
+     * The key of preview row per page
+     *
+     * @see #PREVIEW_ROW_4
+     * @see #PREVIEW_ROW_10
+     * @see #PREVIEW_ROW_20
+     * @see #PREVIEW_ROW_40
+     */
+    private static final String KEY_PREVIEW_ROW = "tr";
+    /**
+     * The key of sort order for gallery comments
+     *
+     * @see #COMMENTS_SORT_OLDEST_FIRST
+     * @see #COMMENTS_SORT_RECENT_FIRST
+     * @see #COMMENTS_SORT_HIGHEST_SCORE_FIRST
+     */
+    private static final String KEY_COMMENTS_SORT = "cs";
+    /**
+     * The key of show gallery comment votes
+     *
+     * @see #COMMENTS_VOTES_POP
+     * @see #COMMENTS_VOTES_ALWAYS
+     */
+    private static final String KEY_COMMENTS_VOTES = "sc";
+    /**
+     * The key of sort order for gallery tags
+     *
+     * @see #TAGS_SORT_ALPHABETICAL
+     * @see #TAGS_SORT_POWER
+     */
+    private static final String KEY_TAGS_SORT = "to";
+    /**
+     * The key of show gallery page numbers
+     *
+     * @see #SHOW_GALLERY_INDEX_NO
+     * @see #SHOW_GALLERY_INDEX_YES
+     */
+    private static final String KEY_SHOW_GALLERY_INDEX = "pn";
+    /**
+     * The key of the IP:Port of a proxy-enabled Hentai@Home Client
+     * to load all images
+     */
+    private static final String KEY_HAH_CLIENT_IP_PORT = "hp";
+    /**
+     * The key of the passkey of a proxy-enabled Hentai@Home Client
+     * to load all images
+     */
+    private static final String KEY_HAH_CLIENT_PASSKEY = "hk";
+    /**
+     * The key of enable Tag Flagging
+     *
+     * @see #ENABLE_TAG_FLAGGING_NO
+     * @see #ENABLE_TAG_FLAGGING_YES
+     */
+    private static final String KEY_ENABLE_TAG_FLAGGING = "tf";
+    /**
+     * The key of always display the original images instead of the resampled versions
+     *
+     * @see #ALWAYS_ORIGINAL_NO
+     * @see #ALWAYS_ORIGINAL_YES
+     */
+    private static final String KEY_ALWAYS_ORIGINAL = "oi";
+    /**
+     * The key of enable the multi-Page Viewer
+     *
+     * @see #MULTI_PAGE_NO
+     * @see #MULTI_PAGE_YES
+     */
+    private static final String KEY_MULTI_PAGE = "qb";
+    /**
+     * The key of multi-Page Viewer Display Style
+     *
+     * @see #MULTI_PAGE_STYLE_C
+     * @see #MULTI_PAGE_STYLE_N
+     * @see #MULTI_PAGE_STYLE_Y
+     */
+    private static final String KEY_MULTI_PAGE_STYLE = "ms";
+    /**
+     * The key of multi-Page Viewer Thumbnail Pane
+     *
+     * @see #MULTI_PAGE_THUMB_HIDE
+     * @see #MULTI_PAGE_THUMB_SHOW
+     */
+    private static final String KEY_MULTI_PAGE_THUMB = "mt";
+    /**
+     * Default gallery title
+     */
+    private static final String GALLERY_TITLE_DEFAULT = "r";
+    /**
+     * Japanese gallery title
+     */
+    private static final String GALLERY_TITLE_JAPANESE = "j";
+    /**
+     * Show popular
+     */
+    private static final String POPULAR_YES = "y";
+    /**
+     * Don't show popular
+     */
+    private static final String POPULAR_NO = "n";
+    /**
+     * Sort favorites by last gallery update time
+     */
+    private static final String FAVORITES_SORT_GALLERY_UPDATE_TIME = "p";
+    /**
+     * Sort favorites by favorited time
+     */
+    private static final String FAVORITES_SORT_FAVORITED_TIME = "f";
+    /**
+     * Load images through the Hentai@Home Network<br/>
+     * key: {@link #KEY_LOAD_FROM_HAH}<br/>
+     * value: {@link #LOAD_FROM_HAH_YES}, {@link #LOAD_FROM_HAH_NO}
+     */
+    public String loadFromHAH = LOAD_FROM_HAH_YES;
+
+    /**
+     * Image Size<br/>
+     * key: {@link #KEY_IMAGE_SIZE}<br/>
+     * value: {@link #IMAGE_SIZE_AUTO}, {@link #IMAGE_SIZE_780X}, {@link #IMAGE_SIZE_980X},
+     * {@link #IMAGE_SIZE_1280X}, {@link #IMAGE_SIZE_1600X}, {@link #IMAGE_SIZE_2400X}
+     */
+    public String imageSize = IMAGE_SIZE_AUTO;
+
+    /**
+     * Scale width<br/>
+     * key: {@link #KEY_SCALE_WIDTH}<br/>
+     * value: 0 for no limit
+     */
+    public int scaleWidth = 0;
+
+    /**
+     * Scale height<br/>
+     * key: {@link #KEY_SCALE_HEIGHT}<br/>
+     * value: 0 for no limit
+     */
+    public int scaleHeight = 0;
+
+    /**
+     * Gallery title<br/>
+     * key: {@link #KEY_GALLERY_TITLE}<br/>
+     * value: {@link #GALLERY_TITLE_DEFAULT}, {@link #GALLERY_TITLE_JAPANESE}
+     */
+    public String galleryTitle = GALLERY_TITLE_DEFAULT;
+
+    /**
+     * The default behavior for downloading an archiver<br/>
+     * key: {@link #KEY_ARCHIVER_DOWNLOAD}<br/>
+     * value: {@link #ARCHIVER_DOWNLOAD_MAMS}, {@link #ARCHIVER_DOWNLOAD_AAMS},
+     * {@link #ARCHIVER_DOWNLOAD_MAAS}, {@link #ARCHIVER_DOWNLOAD_AAAS}
+     */
+    public String archiverDownload = ARCHIVER_DOWNLOAD_MAMS;
+
+    /**
+     * Display mode used on the front and search pages<br/>
+     * false for list, true for thumb<br/>
+     * key: {@link #KEY_LAYOUT_MODE}<br/>
+     * value: {@link #LAYOUT_MODE_LIST}, {@link #LAYOUT_MODE_THUMB}
+     */
+    public String layoutMode = LAYOUT_MODE_LIST;
+
+    /**
+     * Show popular or not<br/>
+     * key: {@link #KEY_POPULAR}<br/>
+     * value: {@link #POPULAR_YES}, {@link #POPULAR_NO}
+     */
+    public String popular = POPULAR_YES;
+
+    /**
+     * Default categories on the front page<br/>
+     * key: {@link #KEY_DEFAULT_CATEGORIES}<br/>
+     * value: the value of categories, for multiple use & operation,
+     * 0 for none
+     */
+    public int defaultCategories = 0;
+
+    /**
+     * <br/>
+     * key: {@link #KEY_FAVORITES_SORT}<br/>
+     * value: {@link #FAVORITES_SORT_GALLERY_UPDATE_TIME}, {@link #FAVORITES_SORT_FAVORITED_TIME}
+     */
+    public String favoritesSort = FAVORITES_SORT_FAVORITED_TIME;
+
+    /**
+     * Certain namespaces excluded from a default tag search<br/>
+     * key: {@link #KEY_EXCLUDED_NAMESPACES}<br/>
+     * value: the value of namespaces, for multiple use & operation,
+     * 0 for none
+     */
+    public int excludedNamespaces = 0;
+
+    /**
+     * Certain languages excluded from list and searches<br/>
+     * key: {@link #KEY_EXCLUDED_LANGUAGES}<br/>
+     * value: {@link #JAPANESE_TRANSLATED}, {@link #JAPANESE_REWRITE} ...
+     * For multiple languages, use <code>x<code/> to combine them, like 1x1024x2048
+     */
+    public String excludedLanguages = "";
+
+    /**
+     * How many results would you like per page for the index/search page
+     * and torrent search pages<br/>
+     * key: {@link #KEY_RESULT_COUNT}<br/>
+     * value: {@link #RESULT_COUNT_25}, {@link #RESULT_COUNT_50},
+     * {@link #RESULT_COUNT_100}, {@link #RESULT_COUNT_200}<br/>
+     * Require <code>Hath Perk:Paging Enlargement</code>
+     */
+    public String resultCount = RESULT_COUNT_25;
+
+    /**
+     * mouse-over thumb<br/>
+     * key: {@link #KEY_MOUSE_OVER}<br/>
+     * value: {@link #MOUSE_OVER_YES}, {@link #MOUSE_OVER_NO}
+     */
+    public String mouseOver = MOUSE_OVER_YES;
+
+    /**
+     * Default preview mode<br/>
+     * key: {@link #KEY_PREVIEW_SIZE}<br/>
+     * value: {@link #PREVIEW_SIZE_NORMAL}, {@link #PREVIEW_SIZE_LARGE}
+     */
+    public String previewSize = PREVIEW_SIZE_LARGE;
+
+    /**
+     * Preview row<br/>
+     * key: {@link #KEY_PREVIEW_ROW}<br/>
+     * value: {@link #PREVIEW_ROW_4}, {@link #PREVIEW_ROW_10},
+     * {@link #PREVIEW_ROW_20}, {@link #PREVIEW_ROW_40}
+     */
+    public String previewRow = PREVIEW_ROW_4;
+
+    /**
+     * Sort order for gallery comments<br/>
+     * key: {@link #KEY_COMMENTS_SORT}<br/>
+     * value: {@link #COMMENTS_SORT_OLDEST_FIRST}, {@link #COMMENTS_SORT_RECENT_FIRST},
+     * {@link #COMMENTS_SORT_HIGHEST_SCORE_FIRST}
+     */
+    public String commentSort = COMMENTS_SORT_OLDEST_FIRST;
+
+    /**
+     * Show gallery comment votes mode<br/>
+     * key: {@link #KEY_COMMENTS_VOTES}<br/>
+     * value: {@link #COMMENTS_VOTES_POP}, {@link #COMMENTS_VOTES_ALWAYS}
+     */
+    public String commentVotes = COMMENTS_VOTES_POP;
+
+
+    /**
+     * Sort order for gallery tags<br/>
+     * key: {@link #KEY_TAGS_SORT}<br/>
+     * value: {@link #TAGS_SORT_ALPHABETICAL}, {@link #TAGS_SORT_POWER}
+     */
+    public String tagSort = TAGS_SORT_ALPHABETICAL;
+
+    /**
+     * Show gallery page numbers<br/>
+     * key: {@link #KEY_SHOW_GALLERY_INDEX}<br/>
+     * value: {@link #SHOW_GALLERY_INDEX_YES}, {@link #SHOW_GALLERY_INDEX_NO}
+     */
+    public String showGalleryIndex = SHOW_GALLERY_INDEX_YES;
+
+    /**
+     * The IP of a proxy-enabled Hentai@Home Client
+     * to load all images<br/>
+     * key: {@link #KEY_HAH_CLIENT_IP_PORT}<br/>
+     */
+    public String hahClientIp = "";
+
+    /**
+     * The PORT of a proxy-enabled Hentai@Home Client
+     * to load all images<br/>
+     * key: {@link #KEY_HAH_CLIENT_IP_PORT}<br/>
+     */
+    public int hahClientPort = -1;
+
+    /**
+     * The passkey of a proxy-enabled Hentai@Home Client
+     * to load all images<br/>
+     * key: {@link #KEY_HAH_CLIENT_PASSKEY}<br/>
+     */
+    public String hahClientPasskey = "";
+
+    /**
+     * Enable tag flagging
+     * key: {@link #KEY_ENABLE_TAG_FLAGGING}<br/>
+     * value: {@link #ENABLE_TAG_FLAGGING_YES}, {@link #ENABLE_TAG_FLAGGING_NO}<br/>
+     * <code>Bronze Star</code> or <code>Hath Perk: Tag Flagging</code> Required
+     */
+    public String enableTagFlagging = ENABLE_TAG_FLAGGING_NO;
+
+    /**
+     * Always display the original images instead of the resampled versions<br/>
+     * key: {@link #KEY_ALWAYS_ORIGINAL}<br/>
+     * value: {@link #ALWAYS_ORIGINAL_YES}, {@link #ALWAYS_ORIGINAL_NO}<br/>
+     * <code>Silver Star</code> or <code>Hath Perk: Source Nexus</code> Required
+     */
+    public String alwaysOriginal = ALWAYS_ORIGINAL_NO;
+
+    /**
+     * Enable the multi-Page Viewer<br/>
+     * key: {@link #KEY_MULTI_PAGE}<br/>
+     * value: {@link #MULTI_PAGE_YES}, {@link #MULTI_PAGE_NO}<br/>
+     * <code>Gold Star</code> or <code>Hath Perk: Multi-Page Viewer</code> Required
+     */
+    public String multiPage = MULTI_PAGE_NO;
+
+    /**
+     * Multi-Page Viewer Display Style<br/>
+     * key: {@link #KEY_MULTI_PAGE_STYLE}<br/>
+     * value: {@link #MULTI_PAGE_STYLE_N}, {@link #MULTI_PAGE_STYLE_C},
+     * {@link #MULTI_PAGE_STYLE_Y}<br/>
+     * <code>Gold Star</code> or <code>Hath Perk: Multi-Page Viewer</code> Required
+     */
+    public String multiPageStyle = MULTI_PAGE_STYLE_N;
+
+    /**
+     * Multi-Page Viewer Thumbnail Pane<br/>
+     * key: {@link #KEY_MULTI_PAGE_THUMB}<br/>
+     * value: {@link #MULTI_PAGE_THUMB_SHOW}, {@link #MULTI_PAGE_THUMB_HIDE}<br/>
+     * <code>Gold Star</code> or <code>Hath Perk: Multi-Page Viewer</code> Required
+     */
+    public String multiPageThumb = MULTI_PAGE_THUMB_SHOW;
+
+    /**
+     * Lofi resolution
+     * key: {@link #KEY_LOFI_RESOLUTION}<br/>
+     * value: {@link #LOFI_RESOLUTION_460X}, {@link #LOFI_RESOLUTION_780X},
+     * {@link #LOFI_RESOLUTION_980X}
+     */
+    public String lofiResolution = LOFI_RESOLUTION_980X;
+
+    /**
+     * Show content warning
+     * key: {@link #KEY_CONTENT_WARNING}<br/>
+     * value: {@link #CONTENT_WARNING_SHOW}, {@link #CONTENT_WARNING_NOT_SHOW}
+     */
+    public String contentWarning = CONTENT_WARNING_NOT_SHOW;
+
+    private String mUconfig;
+
+    private boolean mDirty = true;
+
+    @Override
+    public EhConfig clone() {
+        try {
+            return (EhConfig) super.clone();
+        } catch (CloneNotSupportedException e) {
+            throw new IllegalStateException(e);
+        }
+    }
+
+    public synchronized void setDirty() {
+        mDirty = true;
+    }
+
+    private void updateUconfig() {
+        String hahClientIpPort = (InetValidator.isValidInet4Address(hahClientIp) &&
+                InetValidator.isValidInetPort(hahClientPort)) ?
+                hahClientIp + "%3A" + hahClientPort : "";
+        String hahClientPasskey = null == this.hahClientPasskey ? "" : this.hahClientPasskey;
+        mUconfig = KEY_LOAD_FROM_HAH + "_" + loadFromHAH + "-" +
+                KEY_IMAGE_SIZE + "_" + imageSize + "-" +
+                KEY_SCALE_WIDTH + "_" + scaleWidth + "-" +
+                KEY_SCALE_HEIGHT + "_" + scaleHeight + "-" +
+                KEY_GALLERY_TITLE + "_" + galleryTitle + "-" +
+                KEY_ARCHIVER_DOWNLOAD + "_" + archiverDownload + "-" +
+                KEY_LAYOUT_MODE + "_" + layoutMode + "-" +
+                KEY_POPULAR + "_" + popular + "-" +
+                KEY_DEFAULT_CATEGORIES + "_" + defaultCategories + "-" +
+                KEY_FAVORITES_SORT + "_" + favoritesSort + "-" +
+                KEY_EXCLUDED_NAMESPACES + "_" + excludedNamespaces + "-" +
+                KEY_EXCLUDED_LANGUAGES + "_" + excludedLanguages + "-" +
+                KEY_RESULT_COUNT + "_" + resultCount + "-" +
+                KEY_MOUSE_OVER + "_" + mouseOver + "-" +
+                KEY_PREVIEW_SIZE + "_" + previewSize + "-" +
+                KEY_PREVIEW_ROW + "_" + previewRow + "-" +
+                KEY_COMMENTS_SORT + "_" + commentSort + "-" +
+                KEY_COMMENTS_VOTES + "_" + commentVotes + "-" +
+                KEY_TAGS_SORT + "_" + tagSort + "-" +
+                KEY_SHOW_GALLERY_INDEX + "_" + showGalleryIndex + "-" +
+                KEY_HAH_CLIENT_IP_PORT + "_" + hahClientIpPort + "-" +
+                KEY_HAH_CLIENT_PASSKEY + "_" + hahClientPasskey + "-" +
+                KEY_ENABLE_TAG_FLAGGING + "_" + enableTagFlagging + "-" +
+                KEY_ALWAYS_ORIGINAL + "_" + alwaysOriginal + "-" +
+                KEY_MULTI_PAGE + "_" + multiPage + "-" +
+                KEY_MULTI_PAGE_STYLE + "_" + multiPageStyle + "-" +
+                KEY_MULTI_PAGE_THUMB + "_" + multiPageThumb;
+    }
+
+    public synchronized String uconfig() {
+        if (mDirty) {
+            mDirty = false;
+            updateUconfig();
+        }
+
+        return mUconfig;
+    }
+}

app/src/main/java/com/hippo/ehviewer/client/EhCookieStore.kt

@@ -0,0 +1,250 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hippo.ehviewer.client
+
+import com.hippo.ehviewer.EhApplication
+import com.hippo.network.CookieDatabase
+import com.hippo.network.CookieSet
+import okhttp3.Cookie
+import okhttp3.CookieJar
+import okhttp3.HttpUrl
+import okhttp3.HttpUrl.Companion.toHttpUrl
+import java.util.Collections
+import java.util.regex.Pattern
+
+object EhCookieStore : CookieJar {
+    private val db: CookieDatabase = CookieDatabase(EhApplication.application, "okhttp3-cookie.db")
+    private val map: MutableMap<String, CookieSet> = db.allCookies
+
+    fun signOut() {
+        clear()
+    }
+
+    fun hasSignedIn(): Boolean {
+        val url = EhUrl.HOST_E.toHttpUrl()
+        return contains(url, KEY_IPB_MEMBER_ID) &&
+                contains(url, KEY_IPB_PASS_HASH)
+    }
+
+    const val KEY_IPB_MEMBER_ID = "ipb_member_id"
+    const val KEY_IPB_PASS_HASH = "ipb_pass_hash"
+    const val KEY_IGNEOUS = "igneous"
+    private val sTipsCookie: Cookie = Cookie.Builder()
+        .name(EhConfig.KEY_CONTENT_WARNING)
+        .value(EhConfig.CONTENT_WARNING_NOT_SHOW)
+        .domain(EhUrl.DOMAIN_E)
+        .path("/")
+        .expiresAt(Long.MAX_VALUE)
+        .build()
+
+    fun newCookie(
+        cookie: Cookie, newDomain: String, forcePersistent: Boolean,
+        forceLongLive: Boolean, forceNotHostOnly: Boolean
+    ): Cookie {
+        val builder = Cookie.Builder()
+        builder.name(cookie.name)
+        builder.value(cookie.value)
+        if (forceLongLive) {
+            builder.expiresAt(Long.MAX_VALUE)
+        } else if (cookie.persistent) {
+            builder.expiresAt(cookie.expiresAt)
+        } else if (forcePersistent) {
+            builder.expiresAt(Long.MAX_VALUE)
+        }
+        if (cookie.hostOnly && !forceNotHostOnly) {
+            builder.hostOnlyDomain(newDomain)
+        } else {
+            builder.domain(newDomain)
+        }
+        builder.path(cookie.path)
+        if (cookie.secure) {
+            builder.secure()
+        }
+        if (cookie.httpOnly) {
+            builder.httpOnly()
+        }
+        return builder.build()
+    }
+
+    @Synchronized
+    fun addCookie(cookie: Cookie) {
+        // For cookie database
+        var toAdd: Cookie? = null
+        var toUpdate: Cookie? = null
+        var toRemove: Cookie? = null
+        var set = map[cookie.domain]
+        if (set == null) {
+            set = CookieSet()
+            map[cookie.domain] = set
+        }
+        if (cookie.expiresAt <= System.currentTimeMillis()) {
+            toRemove = set.remove(cookie)
+            // If the cookie is not persistent, it's not in database
+            if (toRemove != null && !toRemove.persistent) {
+                toRemove = null
+            }
+        } else {
+            toAdd = cookie
+            toUpdate = set.add(cookie)
+            // If the cookie is not persistent, it's not in database
+            if (!toAdd.persistent) toAdd = null
+            if (toUpdate != null && !toUpdate.persistent) toUpdate = null
+            // Remove the cookie if it updates to null
+            if (toAdd == null && toUpdate != null) {
+                toRemove = toUpdate
+                toUpdate = null
+            }
+        }
+        if (toRemove != null) {
+            db.remove(toRemove)
+        }
+        if (toAdd != null) {
+            if (toUpdate != null) {
+                db.update(toUpdate, toAdd)
+            } else {
+                db.add(toAdd)
+            }
+        }
+    }
+
+    fun getCookieHeader(url: HttpUrl): String {
+        val cookies = getCookies(url)
+        val cookieHeader = StringBuilder()
+        var i = 0
+        val size = cookies.size
+        while (i < size) {
+            if (i > 0) {
+                cookieHeader.append("; ")
+            }
+            val cookie = cookies[i]
+            cookieHeader.append(cookie.name).append('=').append(cookie.value)
+            i++
+        }
+        return cookieHeader.toString()
+    }
+
+    @Synchronized
+    fun getCookies(url: HttpUrl): List<Cookie> {
+        val accepted: MutableList<Cookie> = ArrayList()
+        val expired: MutableList<Cookie> = ArrayList()
+        for ((domain, cookieSet) in map) {
+            if (domainMatch(url, domain)) {
+                cookieSet[url, accepted, expired]
+            }
+        }
+        for (cookie in expired) {
+            if (cookie.persistent) {
+                db.remove(cookie)
+            }
+        }
+
+        // RFC 6265 Section-5.4 step 2, sort the cookie-list
+        // Cookies with longer paths are listed before cookies with shorter paths.
+        // Ignore creation-time, we don't store them.
+        accepted.sortWith { o1: Cookie, o2: Cookie -> o2.path.length - o1.path.length }
+        return accepted
+    }
+
+    fun contains(url: HttpUrl, name: String?): Boolean {
+        for (cookie in getCookies(url)) {
+            if (cookie.name == name) {
+                return true
+            }
+        }
+        return false
+    }
+
+    /**
+     * Remove all cookies in this `CookieRepository`.
+     */
+    @Synchronized
+    fun clear() {
+        map.clear()
+        db.clear()
+    }
+
+    @Synchronized
+    fun close() {
+        db.close()
+    }
+
+    override fun saveFromResponse(url: HttpUrl, cookies: List<Cookie>) {
+        for (cookie in cookies) {
+            // See https://github.com/Ehviewer-Overhauled/Ehviewer/issues/873
+            if (cookie.name != "__utmp") {
+                addCookie(cookie)
+            }
+        }
+    }
+
+    /**
+     * Quick and dirty pattern to differentiate IP addresses from hostnames. This is an approximation
+     * of Android's private InetAddress#isNumeric API.
+     *
+     *
+     * This matches IPv6 addresses as a hex string containing at least one colon, and possibly
+     * including dots after the first colon. It matches IPv4 addresses as strings containing only
+     * decimal digits and dots. This pattern matches strings like "a:.23" and "54" that are neither IP
+     * addresses nor hostnames; they will be verified as IP addresses (which is a more strict
+     * verification).
+     */
+    private val VERIFY_AS_IP_ADDRESS =
+        Pattern.compile("([0-9a-fA-F]*:[0-9a-fA-F:.]*)|([\\d.]+)")
+
+    /**
+     * Returns true if `host` is not a host name and might be an IP address.
+     */
+    private fun verifyAsIpAddress(host: String): Boolean {
+        return VERIFY_AS_IP_ADDRESS.matcher(host).matches()
+    }
+
+    // okhttp3.Cookie.domainMatch(HttpUrl, String)
+    @JvmStatic
+    fun domainMatch(url: HttpUrl, domain: String?): Boolean {
+        val urlHost = url.host
+        return if (urlHost == domain) {
+            true // As in 'example.com' matching 'example.com'.
+        } else urlHost.endsWith(domain!!)
+                && urlHost[urlHost.length - domain.length - 1] == '.' && !verifyAsIpAddress(
+            urlHost
+        )
+        // As in 'example.com' matching 'www.example.com'.
+    }
+
+    override fun loadForRequest(url: HttpUrl): List<Cookie> {
+        val cookies = getCookies(url)
+        val checkTips = domainMatch(url, EhUrl.DOMAIN_E)
+        return if (checkTips) {
+            val result: MutableList<Cookie> = ArrayList(cookies.size + 1)
+            // Add all but skip some
+            for (cookie in cookies) {
+                val name = cookie.name
+                if (EhConfig.KEY_CONTENT_WARNING == name) {
+                    continue
+                }
+                if (EhConfig.KEY_UCONFIG == name) {
+                    continue
+                }
+                result.add(cookie)
+            }
+            // Add some
+            result.add(sTipsCookie)
+            Collections.unmodifiableList(result)
+        } else {
+            cookies
+        }
+    }
+}

app/src/main/java/com/hippo/ehviewer/client/EhDns.kt

@@ -0,0 +1,130 @@
+/*
+ * Copyright 2018 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hippo.ehviewer.client
+
+import com.hippo.ehviewer.EhApplication
+import com.hippo.ehviewer.Hosts
+import com.hippo.ehviewer.Settings
+import okhttp3.Dns
+import java.net.InetAddress
+import java.net.UnknownHostException
+
+object EhDns : Dns {
+    private val hosts = EhApplication.hosts
+    private val builtInHosts: MutableMap<String, List<InetAddress>> = mutableMapOf()
+
+    init {
+        /* Pair(ip: String!, blockedByCCP: Boolean!) */
+        val ehgtHosts = arrayOf(
+            Pair("37.48.89.44", false),
+            Pair("81.171.10.48", false),
+            Pair("178.162.139.24", false),
+            Pair("178.162.140.212", false),
+            Pair("2001:1af8:4700:a062:8::47de", false),
+            Pair("2001:1af8:4700:a062:9::47de", true),
+            Pair("2001:1af8:4700:a0c9:4::47de", false),
+            Pair("2001:1af8:4700:a0c9:3::47de", true),
+        )
+
+        put(
+            builtInHosts,
+            "e-hentai.org",
+            Pair("104.20.134.21", false),
+            Pair("104.20.135.21", false),
+            Pair("172.67.0.127", false),
+        )
+        put(
+            builtInHosts,
+            "exhentai.org",
+            Pair("178.175.128.252", false),
+            Pair("178.175.129.252", false),
+            Pair("178.175.129.254", false),
+            Pair("178.175.128.254", false),
+            Pair("178.175.132.20", false),
+            Pair("178.175.132.22", false),
+        )
+        put(
+            builtInHosts,
+            "repo.e-hentai.org",
+            Pair("94.100.28.57", true),
+            Pair("94.100.29.73", true),
+        )
+        put(
+            builtInHosts,
+            "forums.e-hentai.org",
+            Pair("94.100.18.243", false),
+        )
+        put(
+            builtInHosts,
+            "ehgt.org",
+            *ehgtHosts
+        )
+        put(
+            builtInHosts,
+            "gt0.ehgt.org",
+            *ehgtHosts
+        )
+        put(
+            builtInHosts,
+            "gt1.ehgt.org",
+            *ehgtHosts
+        )
+        put(
+            builtInHosts,
+            "gt2.ehgt.org",
+            *ehgtHosts
+        )
+        put(
+            builtInHosts,
+            "gt3.ehgt.org",
+            *ehgtHosts
+        )
+        put(
+            builtInHosts,
+            "ul.ehgt.org",
+            Pair("94.100.24.82", true),
+            Pair("94.100.24.72", true),
+        )
+        put(
+            builtInHosts,
+            "raw.githubusercontent.com",
+            Pair("151.101.0.133", false),
+            Pair("151.101.64.133", false),
+            Pair("151.101.128.133", false),
+            Pair("151.101.192.133", false),
+        )
+    }
+
+    private fun put(
+        map: MutableMap<String, List<InetAddress>>,
+        host: String,
+        vararg ips: Pair<String, Boolean>
+    ) {
+        map[host] = ips.mapNotNull { pair ->
+            Hosts.toInetAddress(host, pair.first).takeUnless { Settings.getDF() && pair.second }
+        }
+    }
+
+    @Throws(UnknownHostException::class)
+    override fun lookup(hostname: String): List<InetAddress> {
+        return hosts[hostname] ?: builtInHosts[hostname].takeIf { Settings.getBuiltInHosts() }
+        ?: Dns.SYSTEM.lookup(hostname)
+    }
+
+    fun isInHosts(hostname: String): Boolean {
+        return hosts.contains(hostname) || (builtInHosts.contains(hostname) && Settings.getBuiltInHosts())
+    }
+}

app/src/main/java/com/hippo/ehviewer/client/EhFilter.kt

@@ -0,0 +1,315 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hippo.ehviewer.client
+
+import android.util.Log
+import com.hippo.ehviewer.EhDB
+import com.hippo.ehviewer.client.data.GalleryInfo
+import com.hippo.ehviewer.dao.Filter
+import java.util.Locale
+import java.util.regex.Pattern
+
+object EhFilter {
+    private val mTitleFilterList: MutableList<Filter> = ArrayList()
+    private val mUploaderFilterList: MutableList<Filter> = ArrayList()
+    private val mTagFilterList: MutableList<Filter> = ArrayList()
+    private val mTagNamespaceFilterList: MutableList<Filter> = ArrayList()
+    private val mCommenterFilterList: MutableList<Filter> = ArrayList()
+    private val mCommentFilterList: MutableList<Filter> = ArrayList()
+
+    const val MODE_TITLE = 0
+    const val MODE_UPLOADER = 1
+    const val MODE_TAG = 2
+    const val MODE_TAG_NAMESPACE = 3
+    const val MODE_COMMENTER = 4
+    const val MODE_COMMENT = 5
+    private val TAG = EhFilter::class.java.simpleName
+
+    init {
+        val list = EhDB.allFilter
+        var i = 0
+        val n = list.size
+        while (i < n) {
+            val filter = list[i]
+            when (filter.mode) {
+                MODE_TITLE -> {
+                    filter.text = filter.text!!.lowercase(Locale.getDefault())
+                    mTitleFilterList.add(filter)
+                }
+
+                MODE_TAG -> {
+                    filter.text = filter.text!!.lowercase(Locale.getDefault())
+                    mTagFilterList.add(filter)
+                }
+
+                MODE_TAG_NAMESPACE -> {
+                    filter.text = filter.text!!.lowercase(Locale.getDefault())
+                    mTagNamespaceFilterList.add(filter)
+                }
+
+                MODE_UPLOADER -> mUploaderFilterList.add(filter)
+                MODE_COMMENTER -> mCommenterFilterList.add(filter)
+                MODE_COMMENT -> mCommentFilterList.add(filter)
+                else -> Log.d(TAG, "Unknown mode: " + filter.mode)
+            }
+            i++
+        }
+    }
+
+    val titleFilterList: List<Filter>
+        get() = mTitleFilterList
+    val uploaderFilterList: List<Filter>
+        get() = mUploaderFilterList
+    val tagFilterList: List<Filter>
+        get() = mTagFilterList
+    val tagNamespaceFilterList: List<Filter>
+        get() = mTagNamespaceFilterList
+    val commenterFilterList: List<Filter>
+        get() = mCommenterFilterList
+    val commentFilterList: List<Filter>
+        get() = mCommentFilterList
+
+    @Synchronized
+    fun addFilter(filter: Filter): Boolean {
+        // enable filter by default before it is added to database
+        filter.enable = true
+        if (!EhDB.addFilter(filter)) return false
+        when (filter.mode) {
+            MODE_TITLE -> {
+                filter.text = filter.text!!.lowercase(Locale.getDefault())
+                mTitleFilterList.add(filter)
+            }
+
+            MODE_TAG -> {
+                filter.text = filter.text!!.lowercase(Locale.getDefault())
+                mTagFilterList.add(filter)
+            }
+
+            MODE_TAG_NAMESPACE -> {
+                filter.text = filter.text!!.lowercase(Locale.getDefault())
+                mTagNamespaceFilterList.add(filter)
+            }
+
+            MODE_UPLOADER -> mUploaderFilterList.add(filter)
+            MODE_COMMENTER -> mCommenterFilterList.add(filter)
+            MODE_COMMENT -> mCommentFilterList.add(filter)
+            else -> Log.d(TAG, "Unknown mode: " + filter.mode)
+        }
+        return true
+    }
+
+    @Synchronized
+    fun triggerFilter(filter: Filter) {
+        EhDB.triggerFilter(filter)
+    }
+
+    @Synchronized
+    fun deleteFilter(filter: Filter) {
+        EhDB.deleteFilter(filter)
+        when (filter.mode) {
+            MODE_TITLE -> mTitleFilterList.remove(filter)
+            MODE_TAG -> mTagFilterList.remove(filter)
+            MODE_TAG_NAMESPACE -> mTagNamespaceFilterList.remove(filter)
+            MODE_UPLOADER -> mUploaderFilterList.remove(filter)
+            MODE_COMMENTER -> mCommenterFilterList.remove(filter)
+            MODE_COMMENT -> mCommentFilterList.remove(filter)
+            else -> Log.d(TAG, "Unknown mode: " + filter.mode)
+        }
+    }
+
+    @Synchronized
+    fun needTags(): Boolean {
+        return 0 != mTagFilterList.size || 0 != mTagNamespaceFilterList.size
+    }
+
+    @Synchronized
+    fun filterTitle(info: GalleryInfo?): Boolean {
+        if (null == info) {
+            return false
+        }
+
+        // Title
+        val title = info.title
+        val filters: List<Filter> = mTitleFilterList
+        if (null != title && filters.isNotEmpty()) {
+            var i = 0
+            val n = filters.size
+            while (i < n) {
+                if (filters[i].enable!! && title.lowercase(Locale.getDefault()).contains(
+                        filters[i].text!!
+                    )
+                ) {
+                    return false
+                }
+                i++
+            }
+        }
+        return true
+    }
+
+    @Synchronized
+    fun filterUploader(info: GalleryInfo?): Boolean {
+        if (null == info) {
+            return false
+        }
+
+        // Uploader
+        val uploader = info.uploader
+        val filters: List<Filter> = mUploaderFilterList
+        if (null != uploader && filters.isNotEmpty()) {
+            var i = 0
+            val n = filters.size
+            while (i < n) {
+                if (filters[i].enable!! && uploader == filters[i].text) {
+                    return false
+                }
+                i++
+            }
+        }
+        return true
+    }
+
+    private fun matchTag(tag: String?, filter: String?): Boolean {
+        if (null == tag || null == filter) {
+            return false
+        }
+        val tagNamespace: String?
+        val tagName: String
+        val filterNamespace: String?
+        val filterName: String
+        var index = tag.indexOf(':')
+        if (index < 0) {
+            tagNamespace = null
+            tagName = tag
+        } else {
+            tagNamespace = tag.substring(0, index)
+            tagName = tag.substring(index + 1)
+        }
+        index = filter.indexOf(':')
+        if (index < 0) {
+            filterNamespace = null
+            filterName = filter
+        } else {
+            filterNamespace = filter.substring(0, index)
+            filterName = filter.substring(index + 1)
+        }
+        return if (null != tagNamespace && null != filterNamespace &&
+            tagNamespace != filterNamespace
+        ) {
+            false
+        } else tagName == filterName
+    }
+
+    @Synchronized
+    fun filterTag(info: GalleryInfo?): Boolean {
+        if (null == info) {
+            return false
+        }
+
+        // Tag
+        val tags = info.simpleTags
+        val filters: List<Filter> = mTagFilterList
+        if (null != tags && filters.isNotEmpty()) {
+            for (tag in tags) {
+                var i = 0
+                val n = filters.size
+                while (i < n) {
+                    if (filters[i].enable!! && matchTag(tag, filters[i].text)) {
+                        return false
+                    }
+                    i++
+                }
+            }
+        }
+        return true
+    }
+
+    private fun matchTagNamespace(tag: String?, filter: String?): Boolean {
+        if (null == tag || null == filter) {
+            return false
+        }
+        val tagNamespace: String
+        val index = tag.indexOf(':')
+        return if (index >= 0) {
+            tagNamespace = tag.substring(0, index)
+            tagNamespace == filter
+        } else {
+            false
+        }
+    }
+
+    @Synchronized
+    fun filterTagNamespace(info: GalleryInfo?): Boolean {
+        if (null == info) {
+            return false
+        }
+        val tags = info.simpleTags
+        val filters: List<Filter> = mTagNamespaceFilterList
+        if (null != tags && filters.isNotEmpty()) {
+            for (tag in tags) {
+                var i = 0
+                val n = filters.size
+                while (i < n) {
+                    if (filters[i].enable!! && matchTagNamespace(tag, filters[i].text)) {
+                        return false
+                    }
+                    i++
+                }
+            }
+        }
+        return true
+    }
+
+    @Synchronized
+    fun filterCommenter(commenter: String?): Boolean {
+        if (null == commenter) {
+            return false
+        }
+        val filters: List<Filter> = mCommenterFilterList
+        if (filters.isNotEmpty()) {
+            var i = 0
+            val n = filters.size
+            while (i < n) {
+                if (filters[i].enable!! && commenter == filters[i].text) {
+                    return false
+                }
+                i++
+            }
+        }
+        return true
+    }
+
+    @Synchronized
+    fun filterComment(comment: String?): Boolean {
+        if (null == comment) {
+            return false
+        }
+        val filters: List<Filter> = mCommentFilterList
+        if (filters.isNotEmpty()) {
+            var i = 0
+            val n = filters.size
+            while (i < n) {
+                if (filters[i].enable!!) {
+                    val p = Pattern.compile(filters[i].text!!)
+                    val m = p.matcher(comment)
+                    if (m.find()) return false
+                }
+                i++
+            }
+        }
+        return true
+    }
+}

app/src/main/java/com/hippo/ehviewer/client/EhRequest.kt

@@ -0,0 +1,80 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hippo.ehviewer.client
+
+import android.app.Activity
+import androidx.annotation.MainThread
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.FragmentActivity
+import androidx.lifecycle.lifecycleScope
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.DelicateCoroutinesApi
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.Job
+
+class EhRequest {
+    internal var job: Job? = null
+    val isActive
+        get() = job?.isActive ?: false
+    var method = 0
+        private set
+    var args: Array<out Any?>? = null
+        private set
+    var callback: EhClient.Callback<Any?>? = null
+        private set
+
+    fun setMethod(method: Int): EhRequest {
+        this.method = method
+        return this
+    }
+
+    fun setArgs(vararg args: Any?): EhRequest {
+        this.args = args
+        return this
+    }
+
+    @Suppress("UNCHECKED_CAST")
+    fun setCallback(callback: EhClient.Callback<*>?): EhRequest {
+        this.callback = callback as EhClient.Callback<Any?>?
+        return this
+    }
+
+    fun enqueue(scope: CoroutineScope) {
+        EhClient.enqueue(this, scope)
+    }
+
+    @DelicateCoroutinesApi
+    fun enqueue() {
+        EhClient.enqueue(this, GlobalScope)
+    }
+
+    fun enqueue(fragment: Fragment) {
+        enqueue(fragment.viewLifecycleOwner.lifecycleScope)
+    }
+
+    fun enqueue(activity: Activity) {
+        check(activity is FragmentActivity)
+        enqueue(activity.lifecycleScope)
+    }
+
+    @MainThread
+    fun cancel() {
+        if (isActive) {
+            job?.cancel()
+            callback?.onCancel()
+        }
+    }
+}

app/src/main/java/com/hippo/ehviewer/client/EhRequestBuilder.kt

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hippo.ehviewer.client
+
+import com.hippo.okhttp.ChromeRequestBuilder
+
+class EhRequestBuilder @JvmOverloads constructor(
+    url: String,
+    referer: String?,
+    origin: String? = null
+) : ChromeRequestBuilder(url) {
+    init {
+        referer?.let { addHeader("Referer", it) }
+        origin?.let { addHeader("Origin", it) }
+    }
+}

app/src/main/java/com/hippo/ehviewer/client/EhSSLSocketFactory.kt

@@ -0,0 +1,72 @@
+/*
+ * Copyright 2022 Tarsin Norbin
+ *
+ * This file is part of EhViewer
+ *
+ * EhViewer is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * EhViewer is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with EhViewer.
+ * If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.hippo.ehviewer.client
+
+import android.util.Log
+import java.net.InetAddress
+import java.net.Socket
+import javax.net.ssl.SSLSocket
+import javax.net.ssl.SSLSocketFactory
+
+object EhSSLSocketFactory : SSLSocketFactory() {
+    private val sslSocketFactory = getDefault() as SSLSocketFactory
+    override fun getDefaultCipherSuites(): Array<String> {
+        return sslSocketFactory.defaultCipherSuites
+    }
+
+    override fun getSupportedCipherSuites(): Array<String> {
+        return sslSocketFactory.supportedCipherSuites
+    }
+
+    override fun createSocket(s: Socket, host: String, port: Int, autoClose: Boolean): Socket {
+        val address = s.inetAddress.hostAddress.takeIf { EhDns.isInHosts(host) }
+        val socket = sslSocketFactory.createSocket(s, address ?: host, port, autoClose) as SSLSocket
+        val sslSession = socket.session
+        Log.d(
+            "EhSSLSocketFactory",
+            "Host: " + host + " Address: " + address + " Protocol:" + sslSession.protocol + " CipherSuite:" + sslSession.cipherSuite
+        )
+        return socket
+    }
+
+    override fun createSocket(host: String, port: Int): Socket {
+        return sslSocketFactory.createSocket(host, port)
+    }
+
+    override fun createSocket(
+        host: String,
+        port: Int,
+        localHost: InetAddress,
+        localPort: Int
+    ): Socket {
+        return sslSocketFactory.createSocket(host, port, localHost, localPort)
+    }
+
+    override fun createSocket(host: InetAddress, port: Int): Socket {
+        return sslSocketFactory.createSocket(host, port)
+    }
+
+    override fun createSocket(
+        address: InetAddress,
+        port: Int,
+        localAddress: InetAddress,
+        localPort: Int
+    ): Socket {
+        return sslSocketFactory.createSocket(address, port, localAddress, localPort)
+    }
+}

app/src/main/java/com/hippo/ehviewer/client/EhTagDatabase.kt

@@ -0,0 +1,293 @@
+/*
+ * Copyright 2019 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hippo.ehviewer.client
+
+import android.content.Context
+import com.hippo.ehviewer.AppConfig
+import com.hippo.ehviewer.EhApplication
+import com.hippo.ehviewer.EhApplication.Companion.okHttpClient
+import com.hippo.ehviewer.R
+import com.hippo.util.HashCodeUtils
+import com.hippo.yorozuya.FileUtils
+import com.hippo.yorozuya.copyToFile
+import eu.kanade.tachiyomi.util.lang.launchIO
+import kotlinx.coroutines.DelicateCoroutinesApi
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.flow
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import okio.BufferedSource
+import okio.buffer
+import okio.source
+import org.json.JSONException
+import org.json.JSONObject
+import java.io.File
+import java.io.FileInputStream
+import java.io.IOException
+import java.nio.charset.StandardCharsets
+import java.security.MessageDigest
+import java.security.NoSuchAlgorithmException
+
+private typealias TagGroup = Map<String, String>
+private typealias TagGroups = Map<String, TagGroup>
+
+object EhTagDatabase {
+    private const val NAMESPACE_PREFIX = "n"
+    private lateinit var tagGroups: TagGroups
+
+    fun isInitialized(): Boolean {
+        return this::tagGroups.isInitialized
+    }
+
+    private fun JSONObject.toTagGroups(): TagGroups =
+        keys().asSequence().associateWith { getJSONObject(it).toTagGroup() }
+
+    private fun JSONObject.toTagGroup(): TagGroup =
+        keys().asSequence().associateWith { getString(it) }
+
+    private fun updateData(source: BufferedSource) {
+        try {
+            tagGroups = JSONObject(source.readString(StandardCharsets.UTF_8)).toTagGroups()
+        } catch (e: JSONException) {
+            e.printStackTrace()
+        }
+    }
+
+    fun getTranslation(prefix: String? = NAMESPACE_PREFIX, tag: String?): String? {
+        return tagGroups[prefix]?.get(tag)?.trim()?.takeIf { it.isNotEmpty() }
+    }
+
+    private fun internalSuggestFlow(
+        tags: Map<String, String>,
+        keyword: String,
+        translate: Boolean,
+        exactly: Boolean
+    ): Flow<Pair<String?, String>> = flow {
+        if (exactly) {
+            tags[keyword]?.let {
+                emit(Pair(it.takeIf { translate }, keyword))
+            }
+        } else {
+            if (translate) {
+                tags.forEach { (tag, hint) ->
+                    if (tag != keyword &&
+                        (tag.containsIgnoreSpace(keyword) || hint.containsIgnoreSpace(keyword))
+                    ) {
+                        emit(Pair(hint, tag))
+                    }
+                }
+            } else {
+                tags.keys.forEach { tag ->
+                    if (tag != keyword && tag.containsIgnoreSpace(keyword)) {
+                        emit(Pair(null, tag))
+                    }
+                }
+            }
+        }
+    }
+
+    /* Construct a cold flow for tag database suggestions */
+    fun suggestFlow(
+        keyword: String,
+        translate: Boolean,
+        exactly: Boolean = false
+    ): Flow<Pair<String?, String>> = flow {
+        val keywordPrefix = keyword.substringBefore(':')
+        val keywordTag = keyword.drop(keywordPrefix.length + 1)
+        val prefix = namespaceToPrefix(keywordPrefix) ?: keywordPrefix
+        val tags = tagGroups[prefix.takeIf { keywordTag.isNotEmpty() && it != NAMESPACE_PREFIX }]
+        tags?.let {
+            internalSuggestFlow(it, keywordTag, translate, exactly).collect { (hint, tag) ->
+                emit(Pair(hint, "$prefix:$tag"))
+            }
+        } ?: tagGroups.forEach { (prefix, tags) ->
+            if (prefix != NAMESPACE_PREFIX) {
+                internalSuggestFlow(tags, keyword, translate, exactly).collect { (hint, tag) ->
+                    emit(Pair(hint, "$prefix:$tag"))
+                }
+            } else {
+                internalSuggestFlow(tags, keyword, translate, exactly).collect { (hint, tag) ->
+                    emit(Pair(hint, "$tag:"))
+                }
+            }
+        }
+    }
+
+    private fun String.removeSpace(): String = replace(" ", "")
+
+    private fun String.containsIgnoreSpace(other: String, ignoreCase: Boolean = true): Boolean =
+        removeSpace().contains(other.removeSpace(), ignoreCase)
+
+
+    private val NAMESPACE_TO_PREFIX = HashMap<String, String>().also {
+        it["artist"] = "a"
+        it["cosplayer"] = "cos"
+        it["character"] = "c"
+        it["female"] = "f"
+        it["group"] = "g"
+        it["language"] = "l"
+        it["male"] = "m"
+        it["mixed"] = "x"
+        it["other"] = "o"
+        it["parody"] = "p"
+        it["reclass"] = "r"
+    }
+
+    @JvmStatic
+    fun namespaceToPrefix(namespace: String): String? {
+        return NAMESPACE_TO_PREFIX[namespace]
+    }
+
+    private fun getMetadata(context: Context): Array<String>? {
+        return context.resources.getStringArray(R.array.tag_translation_metadata)
+            .takeIf { it.size == 4 }
+    }
+
+    fun isTranslatable(context: Context): Boolean {
+        return context.resources.getBoolean(R.bool.tag_translatable)
+    }
+
+    private fun getFileContent(file: File): String? {
+        try {
+            file.source().buffer().use { return it.readString(StandardCharsets.UTF_8) }
+        } catch (e: IOException) {
+            return null
+        }
+    }
+
+    private fun getFileSha1(file: File): String? {
+        try {
+            FileInputStream(file).use { stream ->
+                val digest = MessageDigest.getInstance("SHA-1")
+                var n: Int
+                val buffer = ByteArray(4 * 1024)
+                while (stream.read(buffer).also { n = it } != -1) {
+                    digest.update(buffer, 0, n)
+                }
+                return HashCodeUtils.bytesToHexString(digest.digest())
+            }
+        } catch (e: IOException) {
+            return null
+        } catch (e: NoSuchAlgorithmException) {
+            return null
+        }
+    }
+
+    private fun checkData(sha1File: File, dataFile: File): Boolean {
+        val s1 = getFileContent(sha1File) ?: return false
+        val s2 = getFileSha1(dataFile) ?: return false
+        return s1 == s2
+    }
+
+    private fun save(client: OkHttpClient, url: String, file: File): Boolean {
+        val request: Request = Request.Builder().url(url).build()
+        val call = client.newCall(request)
+        runCatching {
+            call.execute().use { response ->
+                if (!response.isSuccessful) {
+                    return false
+                }
+                response.body.use {
+                    it.copyToFile(file)
+                }
+                return true
+            }
+        }.onFailure {
+            file.delete()
+            it.printStackTrace()
+        }
+        return false
+    }
+
+    @OptIn(DelicateCoroutinesApi::class)
+    @JvmStatic
+    fun update() {
+        launchIO {
+            updateInternal()
+        }
+    }
+
+    @Synchronized
+    private fun updateInternal() {
+        val urls = getMetadata(EhApplication.application)
+        urls?.let {
+            val sha1Name = urls[0]
+            val sha1Url = urls[1]
+            val dataName = urls[2]
+            val dataUrl = urls[3]
+
+            try {
+                val dir = AppConfig.getFilesDir("tag-translations")
+                checkNotNull(dir)
+
+                // Check current sha1 and current data
+                val sha1File = File(dir, sha1Name)
+                val dataFile = File(dir, dataName)
+                if (!checkData(sha1File, dataFile)) {
+                    FileUtils.delete(sha1File)
+                    FileUtils.delete(dataFile)
+                }
+
+                // Read current EhTagDatabase
+                if (!isInitialized() && dataFile.exists()) {
+                    try {
+                        dataFile.source().buffer().use { updateData(it) }
+                    } catch (e: IOException) {
+                        FileUtils.delete(sha1File)
+                        FileUtils.delete(dataFile)
+                    }
+                }
+                val client = okHttpClient
+
+                // Save new sha1
+                val tempSha1File = File(dir, "$sha1Name.tmp")
+                check(save(client, sha1Url, tempSha1File))
+
+                // Check new sha1 and current data
+                if (checkData(tempSha1File, dataFile)) {
+                    // The data is the same
+                    FileUtils.delete(tempSha1File)
+                    return
+                }
+
+                // Save new data
+                val tempDataFile = File(dir, "$dataName.tmp")
+                check(save(client, dataUrl, tempDataFile))
+
+                // Check new sha1 and new data
+                if (!checkData(tempSha1File, tempDataFile)) {
+                    FileUtils.delete(tempSha1File)
+                    FileUtils.delete(tempDataFile)
+                    return
+                }
+
+                // Replace current sha1 and current data with new sha1 and new data
+                FileUtils.delete(sha1File)
+                FileUtils.delete(dataFile)
+                tempSha1File.renameTo(sha1File)
+                tempDataFile.renameTo(dataFile)
+
+                // Read new EhTagDatabase
+                try {
+                    dataFile.source().buffer().use { updateData(it) }
+                } catch (_: IOException) {
+                }
+            } catch (e: Throwable) {
+                e.printStackTrace()
+            }
+        }
+    }
+}

app/src/main/java/com/hippo/ehviewer/client/EhUrl.kt

@@ -0,0 +1,176 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hippo.ehviewer.client
+
+import com.hippo.ehviewer.Settings
+import com.hippo.network.UrlBuilder
+
+object EhUrl {
+    const val SITE_E = 0
+    const val SITE_EX = 1
+    const val DOMAIN_EX = "exhentai.org"
+    const val DOMAIN_E = "e-hentai.org"
+    const val DOMAIN_LOFI = "lofi.e-hentai.org"
+    const val HOST_EX = "https://$DOMAIN_EX/"
+    const val API_EX = HOST_EX + "api.php"
+    const val URL_FAVORITES_EX = HOST_EX + "favorites.php"
+    const val URL_UCONFIG_EX = HOST_EX + "uconfig.php"
+    const val URL_MY_TAGS_EX = HOST_EX + "mytags"
+    const val URL_WATCHED_EX = HOST_EX + "watched"
+    const val HOST_E = "https://$DOMAIN_E/"
+    const val API_E = HOST_E + "api.php"
+    const val URL_FAVORITES_E = HOST_E + "favorites.php"
+    const val URL_UCONFIG_E = HOST_E + "uconfig.php"
+    const val URL_MY_TAGS_E = HOST_E + "mytags"
+    const val URL_WATCHED_E = HOST_E + "watched"
+    const val API_SIGN_IN = "https://forums.e-hentai.org/index.php?act=Login&CODE=01"
+    const val URL_POPULAR_E = "https://e-hentai.org/popular"
+    const val URL_POPULAR_EX = "https://exhentai.org/popular"
+    const val URL_IMAGE_SEARCH_E = "https://upload.e-hentai.org/image_lookup.php"
+    const val URL_IMAGE_SEARCH_EX = "https://exhentai.org/upload/image_lookup.php"
+    const val URL_SIGN_IN = "https://forums.e-hentai.org/index.php?act=Login"
+    const val URL_REGISTER = "https://forums.e-hentai.org/index.php?act=Reg&CODE=00"
+    const val URL_FORUMS = "https://forums.e-hentai.org/"
+    const val URL_FUNDS = HOST_E + "exchange.php?t=gp"
+    const val URL_HOME = HOST_E + "home.php"
+    const val URL_NEWS = HOST_E + "news.php"
+    const val REFERER_EX = "https://$DOMAIN_EX"
+    const val ORIGIN_EX = REFERER_EX
+    const val REFERER_E = "https://$DOMAIN_E"
+    const val ORIGIN_E = REFERER_E
+    const val URL_PREFIX_THUMB_E = "https://ehgt.org/"
+    const val URL_PREFIX_THUMB_EX = "https://exhentai.org/t/"
+
+    val host: String
+        get() = when (Settings.getGallerySite()) {
+            SITE_E -> HOST_E
+            SITE_EX -> HOST_EX
+            else -> HOST_E
+        }
+
+    val favoritesUrl: String
+        get() = when (Settings.getGallerySite()) {
+            SITE_E -> URL_FAVORITES_E
+            SITE_EX -> URL_FAVORITES_EX
+            else -> URL_FAVORITES_E
+        }
+
+    val apiUrl: String
+        get() = when (Settings.getGallerySite()) {
+            SITE_E -> API_E
+            SITE_EX -> API_EX
+            else -> API_E
+        }
+
+    @JvmStatic
+    val referer: String
+        get() = when (Settings.getGallerySite()) {
+            SITE_E -> REFERER_E
+            SITE_EX -> REFERER_EX
+            else -> REFERER_E
+        }
+
+    val origin: String
+        get() = when (Settings.getGallerySite()) {
+            SITE_E -> ORIGIN_E
+            SITE_EX -> ORIGIN_EX
+            else -> ORIGIN_E
+        }
+
+    @JvmStatic
+    val uConfigUrl: String
+        get() = when (Settings.getGallerySite()) {
+            SITE_E -> URL_UCONFIG_E
+            SITE_EX -> URL_UCONFIG_EX
+            else -> URL_UCONFIG_E
+        }
+
+    @JvmStatic
+    val myTagsUrl: String
+        get() = when (Settings.getGallerySite()) {
+            SITE_E -> URL_MY_TAGS_E
+            SITE_EX -> URL_MY_TAGS_EX
+            else -> URL_MY_TAGS_E
+        }
+
+    val popularUrl: String
+        get() = when (Settings.getGallerySite()) {
+            SITE_E -> URL_POPULAR_E
+            SITE_EX -> URL_POPULAR_EX
+            else -> URL_POPULAR_E
+        }
+
+    val imageSearchUrl: String
+        get() = when (Settings.getGallerySite()) {
+            SITE_E -> URL_IMAGE_SEARCH_E
+            SITE_EX -> URL_IMAGE_SEARCH_EX
+            else -> URL_IMAGE_SEARCH_E
+        }
+
+    val watchedUrl: String
+        get() = when (Settings.getGallerySite()) {
+            SITE_E -> URL_WATCHED_E
+            SITE_EX -> URL_WATCHED_EX
+            else -> URL_WATCHED_E
+        }
+
+    fun getGalleryDetailUrl(gid: Long, token: String?): String {
+        return getGalleryDetailUrl(gid, token, 0, false)
+    }
+
+    @JvmStatic
+    fun getGalleryDetailUrl(gid: Long, token: String?, index: Int, allComment: Boolean): String {
+        val builder = UrlBuilder(host + "g/" + gid + '/' + token + '/')
+        if (index != 0) {
+            builder.addQuery("p", index)
+        }
+        if (allComment) {
+            builder.addQuery("hc", 1)
+        }
+        return builder.build()
+    }
+
+    @JvmStatic
+    fun getGalleryMultiPageViewerUrl(gid: Long, token: String): String {
+        val builder = UrlBuilder(host + "mpv/" + gid + '/' + token + '/')
+        return builder.build()
+    }
+
+    @JvmStatic
+    fun getPageUrl(gid: Long, index: Int, pToken: String): String {
+        return host + "s/" + pToken + '/' + gid + '-' + (index + 1)
+    }
+
+    fun getAddFavorites(gid: Long, token: String?): String {
+        return host + "gallerypopups.php?gid=" + gid + "&t=" + token + "&act=addfav"
+    }
+
+    fun getDownloadArchive(gid: Long, token: String?, or: String): String {
+        return host + "archiver.php?gid=" + gid + "&token=" + token + "&or=" + or
+    }
+
+    fun getTagDefinitionUrl(tag: String): String {
+        return "https://ehwiki.org/wiki/" + tag.replace(' ', '_')
+    }
+
+    fun getThumbUrlPrefix(): String {
+        return when (Settings.getGallerySite()) {
+            SITE_E -> URL_PREFIX_THUMB_E
+            SITE_EX -> URL_PREFIX_THUMB_EX
+            else -> URL_PREFIX_THUMB_E
+        }
+    }
+}

app/src/main/java/com/hippo/ehviewer/client/EhUtils.kt

@@ -0,0 +1,162 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hippo.ehviewer.client
+
+import android.text.TextUtils
+import com.hippo.ehviewer.EhApplication.Companion.ehCookieStore
+import com.hippo.ehviewer.Settings
+import com.hippo.ehviewer.client.data.GalleryInfo
+import java.util.regex.Pattern
+
+object EhUtils {
+    const val NONE = -1 // Use it for homepage
+    const val PRIVATE = 0x400
+    const val UNKNOWN = 0x800
+
+    // https://youtrack.jetbrains.com/issue/KT-4749
+    private const val BG_COLOR_DOUJINSHI = 0xfff44336u
+    private const val BG_COLOR_MANGA = 0xffff9800u
+    private const val BG_COLOR_ARTIST_CG = 0xfffbc02du
+    private const val BG_COLOR_GAME_CG = 0xff4caf50u
+    private const val BG_COLOR_WESTERN = 0xff8bc34au
+    private const val BG_COLOR_NON_H = 0xff2196f3u
+    private const val BG_COLOR_IMAGE_SET = 0xff3f51b5u
+    private const val BG_COLOR_COSPLAY = 0xff9c27b0u
+    private const val BG_COLOR_ASIAN_PORN = 0xff9575cdu
+    private const val BG_COLOR_MISC = 0xfff06292u
+    private const val BG_COLOR_UNKNOWN = 0xff000000u
+
+    // Remove [XXX], (XXX), {XXX}, ~XXX~ stuff
+    private val PATTERN_TITLE_PREFIX = Pattern.compile(
+        "^(?:\\([^)]*\\)|\\[[^]]*]|\\{[^}]*\\}|~[^~]*~|\\s+)*"
+    )
+
+    // Remove [XXX], (XXX), {XXX}, ~XXX~ stuff and something like ch. 1-23
+    private val PATTERN_TITLE_SUFFIX = Pattern.compile(
+        "(?:\\s+ch.[\\s\\d-]+)?(?:\\([^)]*\\)|\\[[^]]*]|\\{[^}]*\\}|~[^~]*~|\\s+)*$",
+        Pattern.CASE_INSENSITIVE
+    )
+
+    private val CATEGORY_VALUES = hashMapOf(
+        EhConfig.MISC to arrayOf("misc"),
+        EhConfig.DOUJINSHI to arrayOf("doujinshi"),
+        EhConfig.MANGA to arrayOf("manga"),
+        EhConfig.ARTIST_CG to arrayOf("artistcg", "Artist CG Sets", "Artist CG"),
+        EhConfig.GAME_CG to arrayOf("gamecg", "Game CG Sets", "Game CG"),
+        EhConfig.IMAGE_SET to arrayOf("imageset", "Image Sets", "Image Set"),
+        EhConfig.COSPLAY to arrayOf("cosplay"),
+        EhConfig.ASIAN_PORN to arrayOf("asianporn", "Asian Porn"),
+        EhConfig.NON_H to arrayOf("non-h"),
+        EhConfig.WESTERN to arrayOf("western"),
+        PRIVATE to arrayOf("private"),
+        UNKNOWN to arrayOf("unknown")
+    )
+    private val CATEGORY_STRINGS = CATEGORY_VALUES.entries.map { (k, v) -> v to k }
+
+    val isExHentai: Boolean
+        get() = Settings.getGallerySite() == EhUrl.SITE_EX
+
+    @JvmStatic
+    fun getCategory(type: String?): Int {
+        for (entry in CATEGORY_STRINGS) {
+            for (str in entry.first)
+                if (str.equals(type, ignoreCase = true))
+                    return entry.second
+        }
+        return UNKNOWN
+    }
+
+    fun getCategory(type: Int): String {
+        return CATEGORY_VALUES.getOrDefault(type, CATEGORY_VALUES[UNKNOWN])!![0]
+    }
+
+    fun getCategoryColor(category: Int): Int {
+        return when (category) {
+            EhConfig.DOUJINSHI -> BG_COLOR_DOUJINSHI
+            EhConfig.MANGA -> BG_COLOR_MANGA
+            EhConfig.ARTIST_CG -> BG_COLOR_ARTIST_CG
+            EhConfig.GAME_CG -> BG_COLOR_GAME_CG
+            EhConfig.WESTERN -> BG_COLOR_WESTERN
+            EhConfig.NON_H -> BG_COLOR_NON_H
+            EhConfig.IMAGE_SET -> BG_COLOR_IMAGE_SET
+            EhConfig.COSPLAY -> BG_COLOR_COSPLAY
+            EhConfig.ASIAN_PORN -> BG_COLOR_ASIAN_PORN
+            EhConfig.MISC -> BG_COLOR_MISC
+            else -> BG_COLOR_UNKNOWN
+        }.toInt()
+    }
+
+    fun signOut() {
+        ehCookieStore.signOut()
+        Settings.putAvatar(null)
+        Settings.putDisplayName(null)
+        Settings.putGallerySite(EhUrl.SITE_E)
+        Settings.putNeedSignIn(true)
+        Settings.putSelectSite(true)
+    }
+
+    fun needSignedIn(): Boolean {
+        return Settings.getNeedSignIn() && !ehCookieStore.hasSignedIn()
+    }
+
+    @JvmStatic
+    fun getSuitableTitle(gi: GalleryInfo): String {
+        return if (Settings.getShowJpnTitle()) {
+            if (TextUtils.isEmpty(gi.titleJpn)) gi.title else gi.titleJpn
+        } else {
+            if (TextUtils.isEmpty(gi.title)) gi.titleJpn else gi.title
+        }.orEmpty()
+    }
+
+    fun extractTitle(fullTitle: String?): String? {
+        var title: String = fullTitle ?: return null
+        title = PATTERN_TITLE_PREFIX.matcher(title).replaceFirst("")
+        title = PATTERN_TITLE_SUFFIX.matcher(title).replaceFirst("")
+        // Sometimes title is combined by romaji and english translation.
+        // Only need romaji.
+        // TODO But not sure every '|' means that
+        val index = title.indexOf('|')
+        if (index >= 0) {
+            title = title.substring(0, index)
+        }
+        return title.ifEmpty { null }
+    }
+
+    fun fixThumbUrl(url: String): String {
+        return EhUrl.getThumbUrlPrefix() +
+                url.removePrefix(EhUrl.URL_PREFIX_THUMB_E).removePrefix(EhUrl.URL_PREFIX_THUMB_EX)
+    }
+
+    @JvmStatic
+    fun handleThumbUrlResolution(url: String?): String? {
+        if (null == url) {
+            return null
+        }
+        val resolution = when (Settings.getThumbResolution()) {
+            0 -> return url
+            1 -> "250"
+            2 -> "300"
+            else -> return url
+        }
+        val index1 = url.lastIndexOf('_')
+        val index2 = url.lastIndexOf('.')
+        return if (index1 >= 0 && index2 >= 0 && index1 < index2) {
+            url.substring(0, index1 + 1) + resolution + url.substring(index2)
+        } else {
+            url
+        }
+    }
+}

app/src/main/java/com/hippo/ehviewer/client/data/AbstractGalleryInfo.kt

@@ -0,0 +1,25 @@
+package com.hippo.ehviewer.client.data
+
+interface AbstractGalleryInfo {
+    var gid: Long
+    var token: String?
+    var title: String?
+    var titleJpn: String?
+    var thumb: String?
+    var category: Int
+    var posted: String?
+    var uploader: String?
+    var disowned: Boolean
+    var rating: Float
+    var rated: Boolean
+    var simpleTags: Array<String>?
+    var pages: Int
+    var thumbWidth: Int
+    var thumbHeight: Int
+    var spanSize: Int
+    var spanIndex: Int
+    var spanGroupIndex: Int
+    var simpleLanguage: String?
+    var favoriteSlot: Int
+    var favoriteName: String?
+}

app/src/main/java/com/hippo/ehviewer/client/data/BaseGalleryInfo.kt

@@ -0,0 +1,89 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hippo.ehviewer.client.data
+
+import androidx.room.ColumnInfo
+import androidx.room.Ignore
+import androidx.room.PrimaryKey
+import kotlinx.parcelize.Parcelize
+
+@Parcelize
+open class BaseGalleryInfo(
+    @PrimaryKey
+    @ColumnInfo(name = "GID")
+    override var gid: Long = 0,
+
+    @ColumnInfo(name = "TOKEN")
+    override var token: String? = null,
+
+    @ColumnInfo(name = "TITLE")
+    override var title: String? = null,
+
+    @ColumnInfo(name = "TITLE_JPN")
+    override var titleJpn: String? = null,
+
+    @ColumnInfo(name = "THUMB")
+    override var thumb: String? = null,
+
+    @ColumnInfo(name = "CATEGORY")
+    override var category: Int = 0,
+
+    @ColumnInfo(name = "POSTED")
+    override var posted: String? = null,
+
+    @ColumnInfo(name = "UPLOADER")
+    override var uploader: String? = null,
+
+    @Ignore
+    override var disowned: Boolean = false,
+
+    @ColumnInfo(name = "RATING")
+    override var rating: Float = 0f,
+
+    @Ignore
+    override var rated: Boolean = false,
+
+    @Ignore
+    override var simpleTags: Array<String>? = null,
+
+    @Ignore
+    override var pages: Int = 0,
+
+    @Ignore
+    override var thumbWidth: Int = 0,
+
+    @Ignore
+    override var thumbHeight: Int = 0,
+
+    @Ignore
+    override var spanSize: Int = 0,
+
+    @Ignore
+    override var spanIndex: Int = 0,
+
+    @Ignore
+    override var spanGroupIndex: Int = 0,
+
+    @ColumnInfo(name = "SIMPLE_LANGUAGE")
+    override var simpleLanguage: String? = null,
+
+    @Ignore
+    override var favoriteSlot: Int = -2,
+
+    @Ignore
+    override var favoriteName: String? = null
+
+) : GalleryInfo

app/src/main/java/com/hippo/ehviewer/client/data/FavListUrlBuilder.kt

@@ -0,0 +1,58 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hippo.ehviewer.client.data
+
+import android.os.Parcelable
+import com.hippo.ehviewer.client.EhUrl
+import com.hippo.network.UrlBuilder
+import com.hippo.util.encodeUTF8
+import kotlinx.parcelize.Parcelize
+
+@Parcelize
+class FavListUrlBuilder(
+    private var mPrev: String? = null,
+    private var mNext: String? = null,
+    var jumpTo: String? = null,
+    var keyword: String? = null,
+    var favCat: Int = FAV_CAT_ALL,
+) : Parcelable {
+    fun setIndex(index: String?, isNext: Boolean) {
+        mNext = index.takeIf { isNext }
+        mPrev = index.takeUnless { isNext }
+    }
+
+    fun build(): String {
+        val ub = UrlBuilder(EhUrl.favoritesUrl)
+        if (isValidFavCat(favCat)) {
+            ub.addQuery("favcat", favCat.toString())
+        } else if (favCat == FAV_CAT_ALL) {
+            ub.addQuery("favcat", "all")
+        }
+        keyword?.takeIf { it.isNotBlank() }?.let { ub.addQuery("f_search", encodeUTF8(it)) }
+        mPrev?.takeIf { it.isNotEmpty() }?.let { ub.addQuery("prev", it) }
+        mNext?.takeIf { it.isNotEmpty() }?.let { ub.addQuery("next", it) }
+        jumpTo?.takeIf { it.isNotEmpty() }?.let { ub.addQuery("seek", it) }
+        return ub.build()
+    }
+
+    companion object {
+        const val FAV_CAT_ALL = -1
+        const val FAV_CAT_LOCAL = -2
+        fun isValidFavCat(favCat: Int): Boolean {
+            return favCat in 0..9
+        }
+    }
+}

app/src/main/java/com/hippo/ehviewer/client/data/GalleryApiInfo.kt

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hippo.ehviewer.client.data
+
+import android.os.Parcelable
+import kotlinx.parcelize.Parcelize
+
+@Parcelize
+class GalleryApiInfo(
+    var gid: Long = 0,
+    var token: String? = null,
+    var archiverKey: String? = null,
+    var title: String? = null,
+    var titleJpn: String? = null,
+    var category: Int = 0,
+    var thumb: String? = null,
+    var uploader: String? = null,
+    var posted: Long = 0,
+    var filecount: Int = 0,
+    var filesize: Long = 0,
+    var expunged: Boolean = false,
+    var rating: Float = 0f,
+    var torrentcount: Int = 0,
+    var tags: Array<String>?
+) : Parcelable

app/src/main/java/com/hippo/ehviewer/client/data/GalleryComment.kt

@@ -0,0 +1,50 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hippo.ehviewer.client.data
+
+import android.os.Parcelable
+import kotlinx.parcelize.Parcelize
+
+@Parcelize
+class GalleryComment(
+    // 0 for uploader comment. can't vote
+    @JvmField
+    var id: Long = 0,
+    @JvmField
+    var score: Int = 0,
+    @JvmField
+    var editable: Boolean = false,
+    @JvmField
+    var voteUpAble: Boolean = false,
+    @JvmField
+    var voteUpEd: Boolean = false,
+    @JvmField
+    var voteDownAble: Boolean = false,
+    @JvmField
+    var voteDownEd: Boolean = false,
+    @JvmField
+    var uploader: Boolean = false,
+    @JvmField
+    var voteState: String? = null,
+    @JvmField
+    var time: Long = 0,
+    @JvmField
+    var user: String? = null,
+    @JvmField
+    var comment: String? = null,
+    @JvmField
+    var lastEdited: Long = 0
+) : Parcelable