diff --git a/app/src/main/cpp/archive.c b/app/src/main/cpp/archive.c
index a1fa6f026..b9072a878 100644
--- a/app/src/main/cpp/archive.c
+++ b/app/src/main/cpp/archive.c
@@ -279,7 +279,8 @@ static int archive_get_ctx(archive_ctx **ctxptr, int idx) {
 }
 
 JNIEXPORT jint JNICALL
-Java_com_hippo_UriArchiveAccessor_openArchive(JNIEnv *env, jobject thiz, jint fd, jlong size) {
+Java_com_hippo_ehviewer_gallery_ArchivePageLoaderKt_openArchive(JNIEnv *env, jclass thiz, jint fd,
+                                                                jlong size) {
     EH_UNUSED(env);
     EH_UNUSED(thiz);
     archive_ctx *ctx = NULL;
@@ -359,7 +360,8 @@ Java_com_hippo_UriArchiveAccessor_openArchive(JNIEnv *env, jobject thiz, jint fd
 #pragma ide diagnostic ignored "UnreachableCode"
 
 JNIEXPORT jobject JNICALL
-Java_com_hippo_UriArchiveAccessor_extractToByteBuffer(JNIEnv *env, jobject thiz, jint index) {
+Java_com_hippo_ehviewer_gallery_ArchivePageLoaderKt_extractToByteBuffer(JNIEnv *env, jclass thiz,
+                                                                        jint index) {
     EH_UNUSED(env);
     EH_UNUSED(thiz);
     void *addr = MEMPOOL_ADDR_BY_SORTED_IDX(index);
@@ -388,7 +390,7 @@ Java_com_hippo_UriArchiveAccessor_extractToByteBuffer(JNIEnv *env, jobject thiz,
 #pragma clang diagnostic pop
 
 JNIEXPORT void JNICALL
-Java_com_hippo_UriArchiveAccessor_closeArchive(JNIEnv *env, jobject thiz) {
+Java_com_hippo_ehviewer_gallery_ArchivePageLoaderKt_closeArchive(JNIEnv *env, jclass thiz) {
     EH_UNUSED(env);
     EH_UNUSED(thiz);
     for (int i = 0; i < CTX_POOL_SIZE; i++)
@@ -408,14 +410,15 @@ Java_com_hippo_UriArchiveAccessor_closeArchive(JNIEnv *env, jobject thiz) {
 }
 
 JNIEXPORT jboolean JNICALL
-Java_com_hippo_UriArchiveAccessor_needPassword(JNIEnv *env, jobject thiz) {
+Java_com_hippo_ehviewer_gallery_ArchivePageLoaderKt_needPassword(JNIEnv *env, jclass thiz) {
     EH_UNUSED(env);
     EH_UNUSED(thiz);
     return need_encrypt;
 }
 
 JNIEXPORT jboolean JNICALL
-Java_com_hippo_UriArchiveAccessor_providePassword(JNIEnv *env, jobject thiz, jstring str) {
+Java_com_hippo_ehviewer_gallery_ArchivePageLoaderKt_providePassword(JNIEnv *env, jclass thiz,
+                                                                    jstring str) {
     EH_UNUSED(thiz);
     struct archive_entry *entry;
     archive_ctx *ctx;
@@ -445,7 +448,8 @@ Java_com_hippo_UriArchiveAccessor_providePassword(JNIEnv *env, jobject thiz, jst
 }
 
 JNIEXPORT jstring JNICALL
-Java_com_hippo_UriArchiveAccessor_getFilename(JNIEnv *env, jobject thiz, jint index) {
+Java_com_hippo_ehviewer_gallery_ArchivePageLoaderKt_getFilename(JNIEnv *env, jclass thiz,
+                                                                jint index) {
     EH_UNUSED(env);
     EH_UNUSED(thiz);
     index = entries[index].index;
@@ -460,7 +464,8 @@ Java_com_hippo_UriArchiveAccessor_getFilename(JNIEnv *env, jobject thiz, jint in
 }
 
 JNIEXPORT void JNICALL
-Java_com_hippo_UriArchiveAccessor_extractToFd(JNIEnv *env, jobject thiz, jint index, jint fd) {
+Java_com_hippo_ehviewer_gallery_ArchivePageLoaderKt_extractToFd(JNIEnv *env, jclass thiz,
+                                                                jint index, jint fd) {
     EH_UNUSED(env);
     EH_UNUSED(thiz);
     index = entries[index].index;
@@ -474,7 +479,8 @@ Java_com_hippo_UriArchiveAccessor_extractToFd(JNIEnv *env, jobject thiz, jint in
 }
 
 JNIEXPORT void JNICALL
-Java_com_hippo_UriArchiveAccessor_releaseByteBuffer(JNIEnv *env, jobject thiz, jobject buffer) {
+Java_com_hippo_ehviewer_gallery_ArchivePageLoaderKt_releaseByteBuffer(JNIEnv *env, jclass thiz,
+                                                                      jobject buffer) {
     EH_UNUSED(thiz);
     void *addr = (*env)->GetDirectBufferAddress(env, buffer);
     size_t size = (*env)->GetDirectBufferCapacity(env, buffer);
diff --git a/app/src/main/cpp/gifutils.c b/app/src/main/cpp/gifutils.c
index 37e194b62..cf8177497 100644
--- a/app/src/main/cpp/gifutils.c
+++ b/app/src/main/cpp/gifutils.c
@@ -43,14 +43,14 @@ static void doRewrite(byte *addr, size_t size) {
 }
 
 JNIEXPORT void JNICALL
-Java_com_hippo_image_Image_rewriteGifSource(JNIEnv *env, jclass clazz, jobject buffer) {
+Java_com_hippo_image_ImageKt_rewriteGifSource(JNIEnv *env, jclass clazz, jobject buffer) {
     byte *addr = (*env)->GetDirectBufferAddress(env, buffer);
     size_t size = (*env)->GetDirectBufferCapacity(env, buffer);
     doRewrite(addr, size);
 }
 
 JNIEXPORT void JNICALL
-Java_com_hippo_image_Image_rewriteGifSource2(JNIEnv *env, jclass clazz, jint fd) {
+Java_com_hippo_image_ImageKt_rewriteGifSource2(JNIEnv *env, jclass clazz, jint fd) {
     struct stat64 st;
     fstat64(fd, &st);
     size_t size = st.st_size;
diff --git a/app/src/main/java/com/hippo/Native.kt b/app/src/main/java/com/hippo/Native.kt
deleted file mode 100644
index 3385a3679..000000000
--- a/app/src/main/java/com/hippo/Native.kt
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * 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 android.system.Int64Ref
-import android.system.Os
-import java.io.FileDescriptor
-
-private fun sendFileTotally(from: FileDescriptor, to: FileDescriptor) {
-    Os.sendfile(to, from, Int64Ref(0), Long.MAX_VALUE)
-}
-
-infix fun ParcelFileDescriptor.sendTo(fd: FileDescriptor) {
-    sendFileTotally(fileDescriptor, fd)
-}
-
-infix fun ParcelFileDescriptor.sendTo(fd: ParcelFileDescriptor) {
-    sendFileTotally(fileDescriptor, fd.fileDescriptor)
-}
diff --git a/app/src/main/java/com/hippo/UriArchiveAccessor.kt b/app/src/main/java/com/hippo/UriArchiveAccessor.kt
deleted file mode 100644
index 3aa0edc99..000000000
--- a/app/src/main/java/com/hippo/UriArchiveAccessor.kt
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * 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.io.FileDescriptor
-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"
diff --git a/app/src/main/java/com/hippo/ehviewer/EhDB.kt b/app/src/main/java/com/hippo/ehviewer/EhDB.kt
index 7dcc3d8b5..2eafda973 100644
--- a/app/src/main/java/com/hippo/ehviewer/EhDB.kt
+++ b/app/src/main/java/com/hippo/ehviewer/EhDB.kt
@@ -33,7 +33,7 @@ import com.hippo.ehviewer.dao.HistoryInfo
 import com.hippo.ehviewer.dao.LocalFavoriteInfo
 import com.hippo.ehviewer.dao.QuickSearch
 import com.hippo.ehviewer.download.DownloadManager
-import com.hippo.sendTo
+import com.hippo.util.sendTo
 
 object EhDB {
     private const val CUR_DB_VER = 4
diff --git a/app/src/main/java/com/hippo/ehviewer/gallery/ArchivePageLoader.kt b/app/src/main/java/com/hippo/ehviewer/gallery/ArchivePageLoader.kt
index 6ad4f4ef4..6aad70c0c 100644
--- a/app/src/main/java/com/hippo/ehviewer/gallery/ArchivePageLoader.kt
+++ b/app/src/main/java/com/hippo/ehviewer/gallery/ArchivePageLoader.kt
@@ -16,10 +16,13 @@
 package com.hippo.ehviewer.gallery
 
 import android.content.Context
+import android.graphics.ImageDecoder
 import android.net.Uri
-import com.hippo.UriArchiveAccessor
+import android.os.ParcelFileDescriptor
+import android.util.Log
 import com.hippo.ehviewer.Settings
 import com.hippo.image.Image
+import com.hippo.image.rewriteGifSource
 import com.hippo.unifile.UniFile
 import com.hippo.yorozuya.FileUtils
 import kotlinx.coroutines.CoroutineScope
@@ -35,26 +38,26 @@ import kotlinx.coroutines.sync.Mutex
 import kotlinx.coroutines.sync.Semaphore
 import kotlinx.coroutines.sync.withLock
 import kotlinx.coroutines.sync.withPermit
+import java.nio.ByteBuffer
 
-class ArchivePageLoader(context: Context, uri: Uri, passwdFlow: Flow<String>) : PageLoader2(),
-    CoroutineScope {
+class ArchivePageLoader(context: Context, private val uri: Uri, passwdFlow: Flow<String>) : PageLoader2(), CoroutineScope {
     override val coroutineContext = Dispatchers.IO + Job()
-    private val archiveAccessor by lazy { UriArchiveAccessor(context, uri) }
+    private lateinit var pfd: ParcelFileDescriptor
     private val hostJob = launch(start = CoroutineStart.LAZY) {
-        size = archiveAccessor.open()
+        Log.d(DEBUG_TAG, "Open archive $uri")
+        pfd = context.contentResolver.openFileDescriptor(uri, "r")!!
+        size = openArchive(pfd.fd, pfd.statSize)
         if (size == 0) {
             return@launch
         }
-        archiveAccessor.run {
-            if (needPassword()) {
-                Settings.archivePasswds?.forEach {
-                    if (providePassword(it)) return@launch
-                }
-                passwdFlow.collect {
-                    if (providePassword(it)) {
-                        Settings.putPasswdToArchivePasswds(it)
-                        currentCoroutineContext().cancel()
-                    }
+        if (needPassword()) {
+            Settings.archivePasswds?.forEach {
+                if (providePassword(it)) return@launch
+            }
+            passwdFlow.collect {
+                if (providePassword(it)) {
+                    Settings.putPasswdToArchivePasswds(it)
+                    currentCoroutineContext().cancel()
                 }
             }
         }
@@ -69,7 +72,9 @@ class ArchivePageLoader(context: Context, uri: Uri, passwdFlow: Flow<String>) :
 
     override fun stop() {
         cancel()
-        archiveAccessor.close()
+        closeArchive()
+        pfd.close()
+        Log.d(DEBUG_TAG, "Close archive $uri successfully!")
         super.stop()
     }
 
@@ -93,7 +98,19 @@ class ArchivePageLoader(context: Context, uri: Uri, passwdFlow: Flow<String>) :
     }
 
     private suspend fun doRealWork(index: Int) {
-        val src = archiveAccessor.getImageSource(index) ?: return
+        val buffer = extractToByteBuffer(index)
+        buffer ?: return
+        check(buffer.isDirect)
+        rewriteGifSource(buffer)
+        val source = ImageDecoder.createSource(buffer)
+        val src = object : Image.CloseableSource {
+            override val source: ImageDecoder.Source
+                get() = source
+
+            override fun close() {
+                releaseByteBuffer(buffer)
+            }
+        }
         runCatching {
             currentCoroutineContext().ensureActive()
         }.onFailure {
@@ -131,13 +148,13 @@ class ArchivePageLoader(context: Context, uri: Uri, passwdFlow: Flow<String>) :
     }
 
     override fun getImageFilenameWithExtension(index: Int): String {
-        return FileUtils.sanitizeFilename(archiveAccessor.getFilename(index))
+        return FileUtils.sanitizeFilename(getFilename(index))
     }
 
     override fun save(index: Int, file: UniFile): Boolean {
         runCatching {
             file.openFileDescriptor("w").use {
-                archiveAccessor.extractToFd(index, it.fd)
+                extractToFd(index, it.fd)
             }
         }.onFailure {
             it.printStackTrace()
@@ -154,4 +171,15 @@ class ArchivePageLoader(context: Context, uri: Uri, passwdFlow: Flow<String>) :
     }
 
     override fun preloadPages(pages: List<Int>, pair: Pair<Int, Int>) {}
-}
\ No newline at end of file
+}
+
+private const val DEBUG_TAG = "ArchivePageLoader"
+
+private external fun releaseByteBuffer(buffer: ByteBuffer)
+private external fun openArchive(fd: Int, size: Long): Int
+private external fun extractToByteBuffer(index: Int): ByteBuffer?
+private external fun extractToFd(index: Int, fd: Int)
+private external fun getFilename(index: Int): String
+private external fun needPassword(): Boolean
+private external fun providePassword(str: String): Boolean
+private external fun closeArchive()
diff --git a/app/src/main/java/com/hippo/ehviewer/spider/SpiderDen.kt b/app/src/main/java/com/hippo/ehviewer/spider/SpiderDen.kt
index fb498ed74..d067b3389 100644
--- a/app/src/main/java/com/hippo/ehviewer/spider/SpiderDen.kt
+++ b/app/src/main/java/com/hippo/ehviewer/spider/SpiderDen.kt
@@ -28,9 +28,9 @@ import com.hippo.ehviewer.client.referer
 import com.hippo.ehviewer.coil.edit
 import com.hippo.ehviewer.coil.read
 import com.hippo.ehviewer.gallery.SUPPORT_IMAGE_EXTENSIONS
-import com.hippo.image.Image
 import com.hippo.image.Image.CloseableSource
-import com.hippo.sendTo
+import com.hippo.image.rewriteGifSource2
+import com.hippo.util.sendTo
 import com.hippo.unifile.UniFile
 import com.hippo.unifile.openOutputStream
 import com.hippo.yorozuya.FileUtils
@@ -163,7 +163,7 @@ class SpiderDen(private val mGalleryInfo: GalleryInfo) {
             }
             if (contentType == ContentType.Image.GIF)
                 outFile.openFileDescriptor("rw").use {
-                    Image.rewriteGifSource2(it.fd)
+                    rewriteGifSource2(it.fd)
                 }
             return ret
         }
diff --git a/app/src/main/java/com/hippo/image/Image.kt b/app/src/main/java/com/hippo/image/Image.kt
index e9d8c967a..3e5a93da9 100644
--- a/app/src/main/java/com/hippo/image/Image.kt
+++ b/app/src/main/java/com/hippo/image/Image.kt
@@ -95,15 +95,12 @@ class Image private constructor(private val src: CloseableSource) {
                 it.printStackTrace()
             }.getOrNull()
         }
-
-        @JvmStatic
-        external fun rewriteGifSource(buffer: ByteBuffer)
-
-        @JvmStatic
-        external fun rewriteGifSource2(fd: Int)
     }
 
     interface CloseableSource : AutoCloseable {
         val source: Source
     }
 }
+
+external fun rewriteGifSource(buffer: ByteBuffer)
+external fun rewriteGifSource2(fd: Int)
diff --git a/app/src/main/java/com/hippo/util/FDUtils.kt b/app/src/main/java/com/hippo/util/FDUtils.kt
new file mode 100644
index 000000000..690f90e8a
--- /dev/null
+++ b/app/src/main/java/com/hippo/util/FDUtils.kt
@@ -0,0 +1,18 @@
+package com.hippo.util
+
+import android.os.ParcelFileDescriptor
+import android.system.Int64Ref
+import android.system.Os
+import java.io.FileDescriptor
+
+private fun sendFileTotally(from: FileDescriptor, to: FileDescriptor) {
+    Os.sendfile(to, from, Int64Ref(0), Long.MAX_VALUE)
+}
+
+infix fun ParcelFileDescriptor.sendTo(fd: FileDescriptor) {
+    sendFileTotally(fileDescriptor, fd)
+}
+
+infix fun ParcelFileDescriptor.sendTo(fd: ParcelFileDescriptor) {
+    sendFileTotally(fileDescriptor, fd.fileDescriptor)
+}
\ No newline at end of file
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderActivity.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderActivity.kt
index 41e4c477c..d9ddbbc00 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderActivity.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderActivity.kt
@@ -73,7 +73,7 @@ import com.hippo.ehviewer.gallery.EhPageLoader
 import com.hippo.ehviewer.gallery.PageLoader2
 import com.hippo.ehviewer.ui.EhActivity
 import com.hippo.image.Image
-import com.hippo.sendTo
+import com.hippo.util.sendTo
 import com.hippo.unifile.UniFile
 import com.hippo.util.ExceptionUtils
 import com.hippo.util.getParcelableCompat