diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 3ca695b94..1dd7e1920 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -138,8 +138,7 @@
         <!-- 阅读漫画界面 -->
         <activity
             android:name=".ui.book.manga.ReadMangaActivity"
-            android:configChanges="locale|keyboardHidden|orientation|screenSize|smallestScreenSize|screenLayout"
-            android:exported="true"
+            android:exported="false"
             android:launchMode="singleTask">
             <intent-filter>
                 <action android:name="com.samsung.android.support.REMOTE_ACTION" />
diff --git a/app/src/main/java/io/legado/app/ui/book/manga/rv/WebtoonRecyclerView.kt b/app/src/main/java/io/legado/app/ui/book/manga/rv/WebtoonRecyclerView.kt
index 5d02298c7..8a9c7af86 100644
--- a/app/src/main/java/io/legado/app/ui/book/manga/rv/WebtoonRecyclerView.kt
+++ b/app/src/main/java/io/legado/app/ui/book/manga/rv/WebtoonRecyclerView.kt
@@ -60,6 +60,8 @@ class WebtoonRecyclerView @JvmOverloads constructor(
         halfHeight = MeasureSpec.getSize(heightSpec) / 2
         if (!heightSet) {
             originalHeight = MeasureSpec.getSize(heightSpec)
+            val width = MeasureSpec.getSize(widthSpec)
+            setClickArea(width, originalHeight)
             heightSet = true
         }
         super.onMeasure(widthSpec, heightSpec)
@@ -103,8 +105,7 @@ class WebtoonRecyclerView @JvmOverloads constructor(
         return super.dispatchNestedPreScroll(dx, dy, consumed, offsetInWindow, type)
     }
 
-    override fun onSizeChanged(w: Int, h: Int, oldw: Int, oldh: Int) {
-        super.onSizeChanged(w, h, oldw, oldh)
+    private fun setClickArea(width: Int, height: Int) {
         mcRect.set(width * 0.33f, height * 0.33f, width * 0.66f, height * 0.66f)
         blRect.set(0f, height * 0.66f, width * 0.33f, height.toFloat())
         brRect.set(width * 0.66f, height * 0.66f, width.toFloat(), height.toFloat())