diff --git a/app/src/main/java/io/legado/app/ui/book/manga/ReadMangaActivity.kt b/app/src/main/java/io/legado/app/ui/book/manga/ReadMangaActivity.kt
index f6aeab09c..a65f20b51 100644
--- a/app/src/main/java/io/legado/app/ui/book/manga/ReadMangaActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/manga/ReadMangaActivity.kt
@@ -94,14 +94,9 @@ class ReadMangaActivity : VMBaseActivity<ActivityMangaBinding, ReadMangaViewMode
         PagerSnapHelper()
     }
 
-    private var isAutoScrollPage = false
-    private var isAutoScroll = false
-
-    private var mMangaAutoPageSpeed = AppConfig.mangaAutoPageSpeed
     private lateinit var mMangaFooterConfig: MangaFooterConfig
     private val mLabelBuilder by lazy { StringBuilder() }
 
-
     private var mMenu: Menu? = null
 
     private var mRecyclerViewPreloader: RecyclerViewPreloader<Any>? = null
@@ -113,11 +108,11 @@ class ReadMangaActivity : VMBaseActivity<ActivityMangaBinding, ReadMangaViewMode
     private var justInitData: Boolean = false
     private var syncDialog: AlertDialog? = null
     private val mScrollTimer by lazy {
-        ScrollTimer(this, binding.mRecyclerManga, lifecycleScope).apply {
+        ScrollTimer(this, binding.recyclerView, lifecycleScope).apply {
             setSpeed(AppConfig.mangaAutoPageSpeed)
         }
     }
-    private var enableAutoPageScroll = false
+    private var enableAutoScrollPage = false
     private var enableAutoScroll = false
     private val mLinearInterpolator by lazy {
         LinearInterpolator()
@@ -183,7 +178,7 @@ class ReadMangaActivity : VMBaseActivity<ActivityMangaBinding, ReadMangaViewMode
     override fun observeLiveBus() {
         observeEvent<MangaFooterConfig>(EventBus.UP_MANGA_CONFIG) {
             mMangaFooterConfig = it
-            val item = mAdapter.getItem(binding.mRecyclerManga.findCenterViewPosition())
+            val item = mAdapter.getItem(binding.recyclerView.findCenterViewPosition())
             upInfoBar(item)
         }
     }
@@ -194,14 +189,11 @@ class ReadMangaActivity : VMBaseActivity<ActivityMangaBinding, ReadMangaViewMode
                 ?: MangaColorFilterConfig()
         mAdapter.setMangaImageColorFilter(mangaColorFilter)
         setHorizontalScroll(AppConfig.enableMangaHorizontalScroll)
-        binding.mRecyclerManga.run {
+        binding.recyclerView.run {
             adapter = mAdapter
             itemAnimator = null
             layoutManager = mLayoutManager
             setHasFixedSize(true)
-            mLayoutManager.initialPrefetchItemCount = 4
-            mLayoutManager.isItemPrefetchEnabled = true
-            setItemViewCacheSize(AppConfig.preDownloadNum)
             setDisableClickScroll(AppConfig.disableClickScroll)
             setDisableMangaScale(AppConfig.disableMangaScale)
             setRecyclerViewPreloader(AppConfig.mangaPreDownloadNum)
@@ -353,10 +345,10 @@ class ReadMangaActivity : VMBaseActivity<ActivityMangaBinding, ReadMangaViewMode
                 ReadManga.syncProgress({ progress -> sureNewProgress(progress) })
             }
         }
-        if (isAutoScrollPage) {
+        if (enableAutoScrollPage) {
             mScrollTimer.isEnabledPage = true
         }
-        if (isAutoScroll) {
+        if (enableAutoScroll) {
             mScrollTimer.isEnabled = true
         }
     }
@@ -426,11 +418,11 @@ class ReadMangaActivity : VMBaseActivity<ActivityMangaBinding, ReadMangaViewMode
     }
 
     override fun scrollBy(distance: Int) {
-        if (binding.mRecyclerManga.isAtBottom()) {
+        if (binding.recyclerView.isAtEnd()) {
             return
         }
         val time = ceil(16f / distance * 10000).toInt()
-        binding.mRecyclerManga.smoothScrollBy(10000, 10000, mLinearInterpolator, time)
+        binding.recyclerView.smoothScrollBy(10000, 10000, mLinearInterpolator, time)
     }
 
     override fun scrollPage() {
@@ -514,28 +506,23 @@ class ReadMangaActivity : VMBaseActivity<ActivityMangaBinding, ReadMangaViewMode
             R.id.menu_enable_auto_page -> {
                 item.isChecked = !item.isChecked
                 val menuMangaAutoPageSpeed = mMenu?.findItem(R.id.menu_manga_auto_page_speed)
-                isAutoScrollPage = item.isChecked
                 mScrollTimer.isEnabledPage = item.isChecked
                 menuMangaAutoPageSpeed?.isVisible = item.isChecked
-                enableAutoPageScroll = item.isChecked
+                enableAutoScrollPage = item.isChecked
                 enableAutoScroll = false
                 mScrollTimer.isEnabled = false
-                isAutoScroll = false
                 mMenu?.findItem(R.id.menu_enable_auto_scroll)?.isChecked = false
             }
 
             R.id.menu_manga_auto_page_speed -> {
-                val mangaAutoPage = mMenu?.findItem(R.id.menu_enable_auto_page)
-//                val mangaAutoScroll = mMenu?.findItem(R.id.menu_enable_auto_scroll)
                 showNumberPickerDialog(
                     1, getString(R.string.setting_manga_auto_page_speed),
                     AppConfig.mangaAutoPageSpeed
                 ) {
                     AppConfig.mangaAutoPageSpeed = it
-                    mMangaAutoPageSpeed = it
                     item.title = getString(R.string.manga_auto_page_speed, it)
                     mScrollTimer.setSpeed(it)
-                    if (mangaAutoPage?.isChecked == true) {
+                    if (enableAutoScrollPage) {
                         mScrollTimer.isEnabledPage = true
                     }
                 }
@@ -562,12 +549,14 @@ class ReadMangaActivity : VMBaseActivity<ActivityMangaBinding, ReadMangaViewMode
                 mScrollTimer.isEnabled = item.isChecked
                 mMenu?.findItem(R.id.menu_enable_auto_page)?.isChecked = false
                 enableAutoScroll = item.isChecked
-                enableAutoPageScroll = false
-                isAutoScrollPage = false
-                isAutoScroll = item.isChecked
+                enableAutoScrollPage = false
                 mScrollTimer.isEnabledPage = false
                 mMenu?.findItem(R.id.menu_manga_auto_page_speed)?.isVisible = item.isChecked
-                mPagerSnapHelper.attachToRecyclerView(null)
+                if (enableAutoScroll) {
+                    mPagerSnapHelper.attachToRecyclerView(null)
+                } else if (AppConfig.enableMangaHorizontalScroll) {
+                    mPagerSnapHelper.attachToRecyclerView(binding.recyclerView)
+                }
             }
         }
         return super.onCompatOptionsItemSelected(item)
@@ -587,7 +576,7 @@ class ReadMangaActivity : VMBaseActivity<ActivityMangaBinding, ReadMangaViewMode
         if (enableAutoScroll) {
             mScrollTimer.isEnabled = !menuIsVisible
         }
-        if (enableAutoPageScroll) {
+        if (enableAutoScrollPage) {
             mScrollTimer.isEnabledPage = !menuIsVisible
         }
     }
@@ -612,19 +601,19 @@ class ReadMangaActivity : VMBaseActivity<ActivityMangaBinding, ReadMangaViewMode
 
     private fun setRecyclerViewPreloader(maxPreload: Int) {
         if (mRecyclerViewPreloader != null) {
-            binding.mRecyclerManga.removeOnScrollListener(mRecyclerViewPreloader!!)
+            binding.recyclerView.removeOnScrollListener(mRecyclerViewPreloader!!)
         }
         mRecyclerViewPreloader = RecyclerViewPreloader(
             Glide.with(this), mAdapter, mSizeProvider, maxPreload
         )
-        binding.mRecyclerManga.addOnScrollListener(mRecyclerViewPreloader!!)
+        binding.recyclerView.addOnScrollListener(mRecyclerViewPreloader!!)
     }
 
     private fun setHorizontalScroll(enable: Boolean) {
         mAdapter.isHorizontal = enable
         if (enable) {
             if (!enableAutoScroll) {
-                mPagerSnapHelper.attachToRecyclerView(binding.mRecyclerManga)
+                mPagerSnapHelper.attachToRecyclerView(binding.recyclerView)
             }
             mLayoutManager.orientation = LinearLayoutManager.HORIZONTAL
         } else {
@@ -641,16 +630,16 @@ class ReadMangaActivity : VMBaseActivity<ActivityMangaBinding, ReadMangaViewMode
         menu.findItem(R.id.menu_disable_manga_scale).isChecked = AppConfig.disableMangaScale
         menu.findItem(R.id.menu_disable_click_scroll).isChecked = AppConfig.disableClickScroll
         menu.findItem(R.id.menu_manga_auto_page_speed).title =
-            getString(R.string.manga_auto_page_speed, mMangaAutoPageSpeed)
+            getString(R.string.manga_auto_page_speed, AppConfig.mangaAutoPageSpeed)
         menu.findItem(R.id.menu_enable_horizontal_scroll).isChecked =
             AppConfig.enableMangaHorizontalScroll
     }
 
     private fun setDisableMangaScale(disable: Boolean) {
         binding.webtoonFrame.disableMangaScale = disable
-        binding.mRecyclerManga.disableMangaScale = disable
+        binding.recyclerView.disableMangaScale = disable
         if (disable) {
-            binding.mRecyclerManga.resetZoom()
+            binding.recyclerView.resetZoom()
         }
     }
 
@@ -668,47 +657,39 @@ class ReadMangaActivity : VMBaseActivity<ActivityMangaBinding, ReadMangaViewMode
     }
 
     private fun scrollToNext() {
-        if (binding.mRecyclerManga.isAtBottom()) {
+        if (binding.recyclerView.isAtEnd()) {
             return
         }
-        val dx: Int
-        val dy: Int
+        var dx = 0
+        var dy = 0
         if (AppConfig.enableMangaHorizontalScroll) {
-            val width = binding.mRecyclerManga.run {
+            dx = binding.recyclerView.run {
                 width - paddingStart - paddingEnd
             }
-            dx = width
-            dy = 0
         } else {
-            val height = binding.mRecyclerManga.run {
+            dy = binding.recyclerView.run {
                 height - paddingTop - paddingBottom
             }
-            dx = 0
-            dy = height
         }
-        binding.mRecyclerManga.smoothScrollBy(dx, dy)
+        binding.recyclerView.smoothScrollBy(dx, dy)
     }
 
     private fun scrollToPrev() {
-        if (binding.mRecyclerManga.isAtTop()) {
+        if (binding.recyclerView.isAtStart()) {
             return
         }
-        val dx: Int
-        val dy: Int
+        var dx = 0
+        var dy = 0
         if (AppConfig.enableMangaHorizontalScroll) {
-            val width = binding.mRecyclerManga.run {
+            dx = binding.recyclerView.run {
                 width - paddingStart - paddingEnd
             }
-            dx = width
-            dy = 0
         } else {
-            val height = binding.mRecyclerManga.run {
+            dy = binding.recyclerView.run {
                 height - paddingTop - paddingBottom
             }
-            dx = 0
-            dy = height
         }
-        binding.mRecyclerManga.smoothScrollBy(-dx, -dy)
+        binding.recyclerView.smoothScrollBy(-dx, -dy)
     }
 
     private fun showNumberPickerDialog(
@@ -750,15 +731,12 @@ class ReadMangaActivity : VMBaseActivity<ActivityMangaBinding, ReadMangaViewMode
         }
     }
 
-    private fun RecyclerView.isAtTop(): Boolean {
-        return (mLayoutManager.findFirstCompletelyVisibleItemPosition() == 0)
-                && !canScrollVertically(-1)
+    private fun RecyclerView.isAtStart(): Boolean {
+        return !canScrollVertically(-1) && !canScrollHorizontally(-1)
     }
 
-    private fun RecyclerView.isAtBottom(): Boolean {
-        val adapter = adapter ?: return false
-        return (mLayoutManager.findLastCompletelyVisibleItemPosition() == adapter.itemCount - 1) &&
-                !canScrollVertically(1)
+    private fun RecyclerView.isAtEnd(): Boolean {
+        return !canScrollVertically(1) && !canScrollHorizontally(1)
     }
 
     fun updateWindowBrightness(brightness: Int) {
diff --git a/app/src/main/res/layout/activity_manga.xml b/app/src/main/res/layout/activity_manga.xml
index 864dc723d..4a3bec579 100644
--- a/app/src/main/res/layout/activity_manga.xml
+++ b/app/src/main/res/layout/activity_manga.xml
@@ -6,12 +6,12 @@
     android:layout_height="match_parent">
 
     <io.legado.app.ui.book.manga.recyclerview.WebtoonFrame
-        android:id="@+id/webtoonFrame"
+        android:id="@+id/webtoon_frame"
         android:layout_width="match_parent"
         android:layout_height="match_parent">
 
         <io.legado.app.ui.book.manga.recyclerview.WebtoonRecyclerView
-            android:id="@+id/mRecyclerManga"
+            android:id="@+id/recycler_view"
             android:layout_width="match_parent"
             android:layout_height="match_parent" />
 
@@ -29,7 +29,7 @@
         tools:visibility="visible" />
 
     <io.legado.app.ui.book.read.MangaMenu
-        android:id="@+id/mangaMenu"
+        android:id="@+id/manga_menu"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:visibility="gone"
@@ -64,7 +64,7 @@
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:layout_marginTop="10dp"
-                android:text="正在加载中..."
+                android:text="@string/loading"
                 android:textColor="@color/primaryText" />
         </LinearLayout>