Add pattern protection

app/src/main/AndroidManifest.xml

@@ -93,6 +93,12 @@
             android:theme="@style/AppTheme.NoActionBar"
             android:label="@string/filter"/>
 
+        <activity
+            android:name="com.hippo.ehviewer.ui.SetSecurityActivity"
+            android:configChanges="screenSize|uiMode"
+            android:theme="@style/AppTheme.NoActionBar"
+            android:label="@string/set_pattern_protection"/>
+
         <service
             android:name="com.hippo.ehviewer.download.DownloadService"
             android:icon="@mipmap/ic_launcher"

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

@@ -680,6 +680,17 @@ public class Settings {
         putBoolean(KEY_SAVE_PARSE_ERROR_BODY, value);
     }
 
+    public static final String KEY_SECURITY = "security";
+    public static final String DEFAULT_SECURITY = "";
+
+    public static String getSecurity() {
+        return getString(KEY_SECURITY, DEFAULT_SECURITY);
+    }
+
+    public static void putSecurity(String value) {
+        putString(KEY_SECURITY, value);
+    }
+
     /********************
      ****** Guide
      ********************/

app/src/main/java/com/hippo/ehviewer/ui/MainActivity.java

@@ -58,6 +58,7 @@ import com.hippo.ehviewer.ui.scene.GalleryPreviewsScene;
 import com.hippo.ehviewer.ui.scene.HistoryScene;
 import com.hippo.ehviewer.ui.scene.ProgressScene;
 import com.hippo.ehviewer.ui.scene.QuickSearchScene;
+import com.hippo.ehviewer.ui.scene.SecurityScene;
 import com.hippo.ehviewer.ui.scene.SelectSiteScene;
 import com.hippo.ehviewer.ui.scene.SignInScene;
 import com.hippo.ehviewer.ui.scene.WarningScene;
@@ -76,15 +77,14 @@ public final class MainActivity extends StageActivity
 
     private static final int PERMISSION_REQUEST_WRITE_EXTERNAL_STORAGE = 0;
 
-    private static final int REQUEST_CODE_UPDATE_PROFILE = 0;
-
     private static final String KEY_NAV_CHECKED_ITEM = "nav_checked_item";
 
-    public static final int CHECK_STEP_WARNING = 0;
-    public static final int CHECK_STEP_ANALYTICS = 1;
-    public static final int CHECK_STEP_CRASH = 2;
-    public static final int CHECK_STEP_SIGN_IN = 3;
-    public static final int CHECK_STEP_SELECT_SITE = 4;
+    public static final int CHECK_STEP_SECURITY = 0;
+    public static final int CHECK_STEP_WARNING = 1;
+    public static final int CHECK_STEP_ANALYTICS = 2;
+    public static final int CHECK_STEP_CRASH = 3;
+    public static final int CHECK_STEP_SIGN_IN = 4;
+    public static final int CHECK_STEP_SELECT_SITE = 5;
 
     public static final String KEY_TARGET_SCENE = "target_scene";
     public static final String KEY_TARGET_ARGS = "target_args";
@@ -106,6 +106,7 @@ public final class MainActivity extends StageActivity
     private int mNavCheckedItem = 0;
 
     static {
+        registerLaunchMode(SecurityScene.class, SceneFragment.LAUNCH_MODE_SINGLE_TASK);
         registerLaunchMode(WarningScene.class, SceneFragment.LAUNCH_MODE_SINGLE_TASK);
         registerLaunchMode(AnalyticsScene.class, SceneFragment.LAUNCH_MODE_SINGLE_TASK);
         registerLaunchMode(CrashScene.class, SceneFragment.LAUNCH_MODE_SINGLE_TASK);
@@ -128,6 +129,11 @@ public final class MainActivity extends StageActivity
 
     public void startSceneForCheckStep(int checkStep, Bundle args) {
         switch (checkStep) {
+            case CHECK_STEP_SECURITY:
+                if (Settings.getShowWarning()) {
+                    startScene(new Announcer(WarningScene.class).setArgs(args));
+                    break;
+                }
             case CHECK_STEP_WARNING:
                 if (Settings.getAskAnalytics()) {
                     startScene(new Announcer(AnalyticsScene.class).setArgs(args));
@@ -184,7 +190,9 @@ public final class MainActivity extends StageActivity
     @Nullable
     @Override
     protected Announcer getLaunchAnnouncer() {
-        if (Settings.getShowWarning()) {
+        if (!TextUtils.isEmpty(Settings.getSecurity())) {
+            return new Announcer(SecurityScene.class);
+        } else if (Settings.getShowWarning()) {
             return new Announcer(WarningScene.class);
         } else if (Settings.getAskAnalytics()) {
             return new Announcer(AnalyticsScene.class);
@@ -204,7 +212,12 @@ public final class MainActivity extends StageActivity
     // Sometimes scene can't show directly
     private Announcer processAnnouncer(Announcer announcer) {
         if (0 == getSceneCount()) {
-            if (Settings.getShowWarning()) {
+            if (!TextUtils.isEmpty(Settings.getSecurity())) {
+                Bundle newArgs = new Bundle();
+                newArgs.putString(KEY_TARGET_SCENE, announcer.getClazz().getName());
+                newArgs.putBundle(KEY_TARGET_ARGS, announcer.getArgs());
+                return new Announcer(SecurityScene.class).setArgs(newArgs);
+            } else if (Settings.getShowWarning()) {
                 Bundle newArgs = new Bundle();
                 newArgs.putString(KEY_TARGET_SCENE, announcer.getClazz().getName());
                 newArgs.putBundle(KEY_TARGET_ARGS, announcer.getArgs());

app/src/main/java/com/hippo/ehviewer/ui/SetSecurityActivity.java

@@ -0,0 +1,82 @@
+/*
+ * 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.ui;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.text.TextUtils;
+import android.view.View;
+
+import com.hippo.ehviewer.R;
+import com.hippo.ehviewer.Settings;
+import com.hippo.widget.lockpattern.LockPatternUtils;
+import com.hippo.widget.lockpattern.LockPatternView;
+import com.hippo.yorozuya.ViewUtils;
+
+public class SetSecurityActivity extends ToolbarActivity implements View.OnClickListener {
+
+    @Nullable
+    private LockPatternView mPatternView;
+    @Nullable
+    private View mCancel;
+    @Nullable
+    private View mSet;
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_set_security);
+        setNavigationIcon(R.drawable.v_arrow_left_dark_x24);
+
+        mPatternView = (LockPatternView) ViewUtils.$$(this, R.id.pattern_view);
+        mCancel = ViewUtils.$$(this, R.id.cancel);
+        mSet = ViewUtils.$$(this, R.id.set);
+
+        String pattern = Settings.getSecurity();
+        if (!TextUtils.isEmpty(pattern)) {
+            mPatternView.setPattern(LockPatternView.DisplayMode.Correct,
+                    LockPatternUtils.stringToPattern(pattern));
+        }
+
+        mCancel.setOnClickListener(this);
+        mSet.setOnClickListener(this);
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        mPatternView = null;
+    }
+
+    @Override
+    public void onClick(View v) {
+        if (v == mCancel) {
+            finish();
+        } else if (v == mSet) {
+            if (null != mPatternView) {
+                String security;
+                if (mPatternView.getCellSize() <= 1) {
+                    security = "";
+                } else {
+                    security = mPatternView.getPatternString();
+                }
+                Settings.putSecurity(security);
+            }
+            finish();
+        }
+    }
+}

app/src/main/java/com/hippo/ehviewer/ui/fragment/AdvancedFragment.java

@@ -20,11 +20,13 @@ import android.content.res.Resources;
 import android.os.Bundle;
 import android.preference.Preference;
 import android.preference.PreferenceFragment;
+import android.text.TextUtils;
 import android.widget.Toast;
 
 import com.hippo.ehviewer.AppConfig;
 import com.hippo.ehviewer.EhApplication;
 import com.hippo.ehviewer.R;
+import com.hippo.ehviewer.Settings;
 import com.hippo.util.LogCat;
 import com.hippo.util.ReadableTime;
 
@@ -34,6 +36,7 @@ public class AdvancedFragment extends PreferenceFragment implements Preference.O
 
     private static final String KEY_DUMP_LOGCAT = "dump_logcat";
     private static final String KEY_CLEAR_MEMORY_CACHE = "clear_memory_cache";
+    private static final String KEY_PATTERN_PROTECTION = "pattern_protection";
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
@@ -47,6 +50,16 @@ public class AdvancedFragment extends PreferenceFragment implements Preference.O
         clearMemoryCache.setOnPreferenceClickListener(this);
     }
 
+    @Override
+    public void onResume() {
+        super.onResume();
+
+        Preference patternProtection = findPreference(KEY_PATTERN_PROTECTION);
+        patternProtection.setSummary(TextUtils.isEmpty(Settings.getSecurity()) ?
+                R.string.settings_advanced_pattern_protection_not_set :
+                R.string.settings_advanced_pattern_protection_set);
+    }
+
     @Override
     public boolean onPreferenceClick(Preference preference) {
         String key = preference.getKey();

app/src/main/java/com/hippo/ehviewer/ui/scene/SecurityScene.java

@@ -0,0 +1,111 @@
+/*
+ * 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.ui.scene;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.hippo.ehviewer.R;
+import com.hippo.ehviewer.Settings;
+import com.hippo.ehviewer.ui.MainActivity;
+import com.hippo.widget.lockpattern.LockPatternUtils;
+import com.hippo.widget.lockpattern.LockPatternView;
+import com.hippo.yorozuya.ObjectUtils;
+import com.hippo.yorozuya.ViewUtils;
+
+import java.util.List;
+
+public class SecurityScene extends BaseScene implements LockPatternView.OnPatternListener {
+
+    private static final int MAX_RETRY_TIMES = 5;
+
+    private static final String KEY_RETRY_TIMES = "retry_times";
+
+    @Nullable
+    private LockPatternView mPatternView;
+
+    private int mRetryTimes;
+
+    @Override
+    public void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        if (null == savedInstanceState) {
+            mRetryTimes = MAX_RETRY_TIMES;
+        } else {
+            mRetryTimes = savedInstanceState.getInt(KEY_RETRY_TIMES);
+        }
+    }
+
+    @Override
+    public void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+        outState.putInt(KEY_RETRY_TIMES, mRetryTimes);
+    }
+
+    @Nullable
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+            @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+        View view = inflater.inflate(R.layout.scene_security, container, false);
+
+        mPatternView = (LockPatternView) ViewUtils.$$(view, R.id.pattern_view);
+        mPatternView.setOnPatternListener(this);
+
+        return view;
+    }
+
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+
+        mPatternView = null;
+    }
+
+    @Override
+    public void onPatternStart() {}
+
+    @Override
+    public void onPatternCleared() {}
+
+    @Override
+    public void onPatternCellAdded(List<LockPatternView.Cell> pattern) {}
+
+    @Override
+    public void onPatternDetected(List<LockPatternView.Cell> pattern) {
+        MainActivity activity = getActivity2();
+        if (null == activity || null == mPatternView) {
+            return;
+        }
+
+        String enteredPatter = LockPatternUtils.patternToString(pattern);
+        String targetPatter = Settings.getSecurity();
+
+        if (ObjectUtils.equal(enteredPatter, targetPatter)) {
+            activity.startSceneForCheckStep(MainActivity.CHECK_STEP_SECURITY, getArguments());
+            finish();
+        } else {
+            mPatternView.setDisplayMode(LockPatternView.DisplayMode.Wrong);
+            mRetryTimes--;
+            if (mRetryTimes <= 0) {
+                finish();
+            }
+        }
+    }
+}

app/src/main/java/com/hippo/widget/lockpattern/LockPatternUtils.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * 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.widget.lockpattern;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Utilities for the lock pattern and its settings.
+ */
+public class LockPatternUtils {
+
+    /**
+     * Deserialize a pattern.
+     * @param string The pattern serialized with {@link #patternToString}
+     * @return The pattern.
+     */
+    public static List<LockPatternView.Cell> stringToPattern(String string) {
+        List<LockPatternView.Cell> result = new ArrayList<>();
+
+        final byte[] bytes = string.getBytes();
+        for (int i = 0; i < bytes.length; i++) {
+            byte b = bytes[i];
+            result.add(LockPatternView.Cell.of(b / 3, b % 3));
+        }
+        return result;
+    }
+
+    /**
+     * Serialize a pattern.
+     * @param pattern The pattern.
+     * @return The pattern in string form.
+     */
+    public static String patternToString(List<LockPatternView.Cell> pattern) {
+        if (pattern == null) {
+            return "";
+        }
+        final int patternSize = pattern.size();
+
+        byte[] res = new byte[patternSize];
+        for (int i = 0; i < patternSize; i++) {
+            LockPatternView.Cell cell = pattern.get(i);
+            res[i] = (byte) (cell.getRow() * 3 + cell.getColumn());
+        }
+        return new String(res);
+    }
+
+    public static boolean isPatternVaild(String pattern) {
+        byte[] bytes = pattern.getBytes();
+        if (bytes.length <= 9 && bytes.length >= 2) {
+            for (byte b : bytes) {
+                if (b >= 9 || b < 0) {
+                    return false;
+                }
+            }
+            return true;
+        } else {
+            return false;
+        }
+    }
+}

app/src/main/res/layout-land/activity_set_security.xml

@@ -0,0 +1,86 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ 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.
+  -->
+
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="horizontal">
+
+    <LinearLayout
+        android:layout_width="0dp"
+        android:layout_height="match_parent"
+        android:layout_weight="1"
+        android:orientation="vertical">
+
+        <TextView
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:textAppearance="@style/TextAppearance.AppCompat.Medium"
+            android:text="@string/set_pattern_protection_tip"
+            android:padding="@dimen/keyline_margin"
+            android:gravity="center"/>
+
+        <Space
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="1"/>
+
+        <android.support.v7.widget.ButtonBarLayout
+            xmlns:android="http://schemas.android.com/apk/res/android"
+            android:id="@+id/buttonPanel"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal"
+            android:paddingLeft="12dp"
+            android:paddingRight="12dp"
+            android:paddingTop="4dp"
+            android:paddingBottom="4dp"
+            android:gravity="bottom"
+            style="?attr/buttonBarStyle">
+
+            <Button
+                android:id="@+id/cancel"
+                style="?attr/buttonBarNegativeButtonStyle"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="@android:string/cancel"/>
+
+            <Button
+                android:id="@+id/set"
+                style="?attr/buttonBarPositiveButtonStyle"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="@string/set"/>
+
+        </android.support.v7.widget.ButtonBarLayout>
+    </LinearLayout>
+
+    <FrameLayout
+        android:layout_width="0dp"
+        android:layout_height="match_parent"
+        android:layout_weight="1">
+
+        <com.hippo.widget.lockpattern.LockPatternView
+            android:id="@+id/pattern_view"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"/>
+
+    </FrameLayout>
+</LinearLayout>

app/src/main/res/layout/activity_set_security.xml

@@ -0,0 +1,84 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ 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.
+  -->
+
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:textAppearance="@style/TextAppearance.AppCompat.Medium"
+        android:text="@string/set_pattern_protection_tip"
+        android:padding="@dimen/keyline_margin"
+        android:gravity="center"/>
+
+    <FrameLayout
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1">
+
+        <com.hippo.widget.MaxSizeContainer
+            xmlns:app="http://schemas.android.com/apk/res-auto"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center"
+            android:layout_margin="32dp"
+            app:maxWidth="320dp"
+            app:maxHeight="320dp">
+
+            <com.hippo.widget.lockpattern.LockPatternView
+                android:id="@+id/pattern_view"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"/>
+
+        </com.hippo.widget.MaxSizeContainer>
+    </FrameLayout>
+
+    <android.support.v7.widget.ButtonBarLayout
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        android:id="@+id/buttonPanel"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:paddingLeft="12dp"
+        android:paddingRight="12dp"
+        android:paddingTop="4dp"
+        android:paddingBottom="4dp"
+        android:gravity="bottom"
+        style="?attr/buttonBarStyle">
+
+        <Button
+            android:id="@+id/cancel"
+            style="?attr/buttonBarNegativeButtonStyle"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="@android:string/cancel"/>
+
+        <Button
+            android:id="@+id/set"
+            style="?attr/buttonBarPositiveButtonStyle"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="@string/set"/>
+
+    </android.support.v7.widget.ButtonBarLayout>
+</LinearLayout>

app/src/main/res/layout/scene_security.xml

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ 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.
+  -->
+
+<FrameLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <com.hippo.widget.MaxSizeContainer
+        xmlns:app="http://schemas.android.com/apk/res-auto"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:layout_margin="32dp"
+        app:maxWidth="320dp"
+        app:maxHeight="320dp">
+
+        <com.hippo.widget.lockpattern.LockPatternView
+            android:id="@+id/pattern_view"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"/>
+
+    </com.hippo.widget.MaxSizeContainer>
+</FrameLayout>

app/src/main/res/values-zh-rCN/strings.xml

@@ -300,6 +300,11 @@
     <string name="delete_filter">删除过滤项：%s？</string>
     <string name="filter_tip">标题过滤项：排除标题含有该关键字的画廊。\n\n上传者过滤项：排除该上传者上传的画廊。\n\n标签过滤项：排除包含该关键字的画廊，这会使获取画廊列表花费更多时间。</string>
 
+    <!-- Set Security -->
+    <string name="set_pattern_protection">设置图案保护</string>
+    <string name="set_pattern_protection_tip">绘制图案来设置图案保护\n留空来取消图案保护</string>
+    <string name="set">设置</string>
+
     <!-- Gallery Activity -->
     <string name="page_menu_title">第 %d 页</string>
     <string name="page_menu_refresh">@string/refresh</string>
@@ -385,6 +390,9 @@
     <string name="settings_advanced_clear_download_path_cache_message">清除画廊下载路径缓存？</string>
     <string name="settings_advanced_clear_memory_cache">清理内存缓存</string>
     <string name="settings_advanced_clear_memory_cache_summary">清理缩略图、画廊信息的内存缓存</string>
+    <string name="settings_advanced_pattern_protection_title">图案保护</string>
+    <string name="settings_advanced_pattern_protection_not_set">未设置图案保护</string>
+    <string name="settings_advanced_pattern_protection_set">已设置图案保护</string>
 
     <string name="settings_about">关于</string>
     <string name="settings_about_author">作者</string>

app/src/main/res/values-zh-rHK/strings.xml

@@ -300,6 +300,11 @@
     <string name="delete_filter">刪除過濾項：%s？</string>
     <string name="filter_tip">標題過濾項：排除標題含有該關鍵字的畫廊。\n\n上傳者過濾項：排除該上傳者上傳的畫廊。\n\n標籤過濾項：排除包含該關鍵字的畫廊，這會使獲取畫廊列表花費更多時間。</string>
 
+    <!-- Set Security -->
+    <string name="set_pattern_protection">設置圖案保護</string>
+    <string name="set_pattern_protection_tip">繪製圖案來設置圖案保護\n留空來取消圖案保護</string>
+    <string name="set">設置</string>
+
     <!-- Gallery Activity -->
     <string name="page_menu_title">第 %d 頁</string>
     <string name="page_menu_refresh">@string/refresh</string>
@@ -385,6 +390,9 @@
     <string name="settings_advanced_clear_download_path_cache_message">清除畫廊下載路徑緩存？</string>
     <string name="settings_advanced_clear_memory_cache">清理內存緩存</string>
     <string name="settings_advanced_clear_memory_cache_summary">清理縮略圖、畫廊信息的內存緩存</string>
+    <string name="settings_advanced_pattern_protection_title">圖案保護</string>
+    <string name="settings_advanced_pattern_protection_not_set">未設置圖案保護</string>
+    <string name="settings_advanced_pattern_protection_set">已設置圖案保護</string>
 
     <string name="settings_about">關於</string>
     <string name="settings_about_author">作者</string>

app/src/main/res/values-zh-rTW/strings.xml

@@ -300,6 +300,11 @@
     <string name="delete_filter">刪除過濾項：%s？</string>
     <string name="filter_tip">標題過濾項：排除標題含有該關鍵字的畫廊。\n\n上傳者過濾項：排除該上傳者上傳的畫廊。\n\n標籤過濾項：排除包含該關鍵字的畫廊，這會使獲取畫廊列表花費更多時間。</string>
 
+    <!-- Set Security -->
+    <string name="set_pattern_protection">設定圖案保護</string>
+    <string name="set_pattern_protection_tip">繪製圖案來設定圖案保護\n留空來取消圖案保護</string>
+    <string name="set">設定</string>
+
     <!-- Gallery Activity -->
     <string name="page_menu_title">第 %d 頁</string>
     <string name="page_menu_refresh">@string/refresh</string>
@@ -385,6 +390,9 @@
     <string name="settings_advanced_clear_download_path_cache_message">清除畫廊下載路徑快取？</string>
     <string name="settings_advanced_clear_memory_cache">清理記憶體快取</string>
     <string name="settings_advanced_clear_memory_cache_summary">清理縮圖、畫廊資訊的記憶體快取</string>
+    <string name="settings_advanced_pattern_protection_title">圖案保護</string>
+    <string name="settings_advanced_pattern_protection_not_set">未設定圖案保護</string>
+    <string name="settings_advanced_pattern_protection_set">已設定圖案保護</string>
 
     <string name="settings_about">關於</string>
     <string name="settings_about_author">作者</string>

app/src/main/res/values/colors.xml

@@ -109,4 +109,9 @@
 
     <color name="guide_bg">#e5009688</color>
 
+    <!-- Lock pattern view -->
+    <color name="lock_pattern_view_regular_color">#8a000000</color>
+    <color name="lock_pattern_view_success_color">@color/colorPrimary</color>
+    <color name="lock_pattern_view_error_color">@color/red_500</color>
+
 </resources>

app/src/main/res/values/dimens.xml

@@ -102,4 +102,9 @@
 
     <dimen name="gallery_guide_divider_width">3dp</dimen>
 
+    <!-- Lock pattern view -->
+    <dimen name="lock_pattern_dot_line_width">3dp</dimen>
+    <dimen name="lock_pattern_dot_size">12dp</dimen>
+    <dimen name="lock_pattern_dot_size_activated">28dp</dimen>
+
 </resources>

app/src/main/res/values/strings.xml

@@ -343,6 +343,11 @@
     <string name="filter_text">Filter text</string>
     <string name="filter_tip">Title Filter: exclude the gallery whose title contains the word.\n\nUploader Filter: exclude the gallery which was uploaded by the uploader.\n\nTag Filter: exclude the gallery which contain the tag, it takes more time to get gallery list.</string>
 
+    <!-- Set Security -->
+    <string name="set_pattern_protection">Set pattern protection</string>
+    <string name="set_pattern_protection_tip">Draw a pattern to set pattern protection\nLeave blank to clear pattern protection</string>
+    <string name="set">Set</string>
+
     <!-- Gallery Activity -->
     <string name="page_menu_title">Page %d</string>
     <string name="page_menu_refresh">@string/refresh</string>
@@ -427,6 +432,9 @@
     <string name="settings_advanced_clear_download_path_cache_message">Clear download path cache?</string>
     <string name="settings_advanced_clear_memory_cache">Clear memory cache</string>
     <string name="settings_advanced_clear_memory_cache_summary">Clear thumb, gallery info memory cache</string>
+    <string name="settings_advanced_pattern_protection_title">Pattern protection</string>
+    <string name="settings_advanced_pattern_protection_not_set">Pattern protection has not been set</string>
+    <string name="settings_advanced_pattern_protection_set">Pattern protection has been set</string>
 
     <string name="settings_about">About</string>
     <string name="settings_about_author">Author</string>

app/src/main/res/xml/advanced_settings.xml

@@ -39,4 +39,10 @@
         android:title="@string/settings_advanced_clear_memory_cache"
         android:summary="@string/settings_advanced_clear_memory_cache_summary"/>
 
+    <com.hippo.preference.ActivityPreference
+        xmlns:app="http://schemas.android.com/apk/res-auto"
+        android:key="pattern_protection"
+        android:title="@string/settings_advanced_pattern_protection_title"
+        app:activity="com.hippo.ehviewer.ui.SetSecurityActivity"/>
+
 </PreferenceScreen>