diff --git a/app/src/main/java/io/legado/app/ui/widget/page2/FrameLayoutNS.kt b/app/src/main/java/io/legado/app/ui/widget/page2/FrameLayoutNS.kt
deleted file mode 100644
index 050b4286f..000000000
--- a/app/src/main/java/io/legado/app/ui/widget/page2/FrameLayoutNS.kt
+++ /dev/null
@@ -1,96 +0,0 @@
-package io.legado.app.ui.widget.page2
-
-import android.content.Context
-import android.util.AttributeSet
-import android.view.MotionEvent
-import android.view.View
-import android.view.ViewConfiguration
-import android.widget.FrameLayout
-import androidx.viewpager2.widget.ViewPager2
-import androidx.viewpager2.widget.ViewPager2.ORIENTATION_HORIZONTAL
-import kotlin.math.absoluteValue
-import kotlin.math.sign
-
-/**
- * Layout to wrap a scrollable component inside a ViewPager2. Provided as a solution to the problem
- * where pages of ViewPager2 have nested scrollable elements that scroll in the same direction as
- * ViewPager2. The scrollable element needs to be the immediate and only child of this host layout.
- *
- * This solution has limitations when using multiple levels of nested scrollable elements
- * (e.g. a horizontal RecyclerView in a vertical RecyclerView in a horizontal ViewPager2).
- */
-class FrameLayoutNS : FrameLayout {
-    constructor(context: Context) : super(context)
-    constructor(context: Context, attrs: AttributeSet?) : super(context, attrs)
-
-    private var touchSlop = 0
-    private var initialX = 0f
-    private var initialY = 0f
-    private val parentViewPager: ViewPager2?
-        get() {
-            var v: View? = parent as? View
-            while (v != null && v !is ViewPager2) {
-                v = v.parent as? View
-            }
-            return v as? ViewPager2
-        }
-
-    private val child: View? get() = if (childCount > 0) getChildAt(0) else null
-
-    init {
-        touchSlop = ViewConfiguration.get(context).scaledTouchSlop
-    }
-
-    private fun canChildScroll(orientation: Int, delta: Float): Boolean {
-        val direction = -delta.sign.toInt()
-        return when (orientation) {
-            0 -> child?.canScrollHorizontally(direction) ?: false
-            1 -> child?.canScrollVertically(direction) ?: false
-            else -> throw IllegalArgumentException()
-        }
-    }
-
-    override fun onInterceptTouchEvent(e: MotionEvent): Boolean {
-        handleInterceptTouchEvent(e)
-        return super.onInterceptTouchEvent(e)
-    }
-
-    private fun handleInterceptTouchEvent(e: MotionEvent) {
-        val orientation = parentViewPager?.orientation ?: return
-
-        // Early return if child can't scroll in same direction as parent
-        if (!canChildScroll(orientation, -1f) && !canChildScroll(orientation, 1f)) {
-            return
-        }
-
-        if (e.action == MotionEvent.ACTION_DOWN) {
-            initialX = e.x
-            initialY = e.y
-            parent.requestDisallowInterceptTouchEvent(true)
-        } else if (e.action == MotionEvent.ACTION_MOVE) {
-            val dx = e.x - initialX
-            val dy = e.y - initialY
-            val isVpHorizontal = orientation == ORIENTATION_HORIZONTAL
-
-            // assuming ViewPager2 touch-slop is 2x touch-slop of child
-            val scaledDx = dx.absoluteValue * if (isVpHorizontal) .5f else 1f
-            val scaledDy = dy.absoluteValue * if (isVpHorizontal) 1f else .5f
-
-            if (scaledDx > touchSlop || scaledDy > touchSlop) {
-                if (isVpHorizontal == (scaledDy > scaledDx)) {
-                    // Gesture is perpendicular, allow all parents to intercept
-                    parent.requestDisallowInterceptTouchEvent(false)
-                } else {
-                    // Gesture is parallel, query child if movement in that direction is possible
-                    if (canChildScroll(orientation, if (isVpHorizontal) dx else dy)) {
-                        // Child can scroll, disallow all parents to intercept
-                        parent.requestDisallowInterceptTouchEvent(true)
-                    } else {
-                        // Child cannot scroll, allow all parents to intercept
-                        parent.requestDisallowInterceptTouchEvent(false)
-                    }
-                }
-            }
-        }
-    }
-}
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/ui/widget/page2/LinearLayoutNS.kt b/app/src/main/java/io/legado/app/ui/widget/page2/LinearLayoutNS.kt
deleted file mode 100644
index b82baa455..000000000
--- a/app/src/main/java/io/legado/app/ui/widget/page2/LinearLayoutNS.kt
+++ /dev/null
@@ -1,96 +0,0 @@
-package io.legado.app.ui.widget.page2
-
-import android.content.Context
-import android.util.AttributeSet
-import android.view.MotionEvent
-import android.view.View
-import android.view.ViewConfiguration
-import android.widget.LinearLayout
-import androidx.viewpager2.widget.ViewPager2
-import androidx.viewpager2.widget.ViewPager2.ORIENTATION_HORIZONTAL
-import kotlin.math.absoluteValue
-import kotlin.math.sign
-
-/**
- * Layout to wrap a scrollable component inside a ViewPager2. Provided as a solution to the problem
- * where pages of ViewPager2 have nested scrollable elements that scroll in the same direction as
- * ViewPager2. The scrollable element needs to be the immediate and only child of this host layout.
- *
- * This solution has limitations when using multiple levels of nested scrollable elements
- * (e.g. a horizontal RecyclerView in a vertical RecyclerView in a horizontal ViewPager2).
- */
-class LinearLayoutNS : LinearLayout {
-    constructor(context: Context) : super(context)
-    constructor(context: Context, attrs: AttributeSet?) : super(context, attrs)
-
-    private var touchSlop = 0
-    private var initialX = 0f
-    private var initialY = 0f
-    private val parentViewPager: ViewPager2?
-        get() {
-            var v: View? = parent as? View
-            while (v != null && v !is ViewPager2) {
-                v = v.parent as? View
-            }
-            return v as? ViewPager2
-        }
-
-    private val child: View? get() = if (childCount > 0) getChildAt(0) else null
-
-    init {
-        touchSlop = ViewConfiguration.get(context).scaledTouchSlop
-    }
-
-    private fun canChildScroll(orientation: Int, delta: Float): Boolean {
-        val direction = -delta.sign.toInt()
-        return when (orientation) {
-            0 -> child?.canScrollHorizontally(direction) ?: false
-            1 -> child?.canScrollVertically(direction) ?: false
-            else -> throw IllegalArgumentException()
-        }
-    }
-
-    override fun onInterceptTouchEvent(e: MotionEvent): Boolean {
-        handleInterceptTouchEvent(e)
-        return super.onInterceptTouchEvent(e)
-    }
-
-    private fun handleInterceptTouchEvent(e: MotionEvent) {
-        val orientation = parentViewPager?.orientation ?: return
-
-        // Early return if child can't scroll in same direction as parent
-        if (!canChildScroll(orientation, -1f) && !canChildScroll(orientation, 1f)) {
-            return
-        }
-
-        if (e.action == MotionEvent.ACTION_DOWN) {
-            initialX = e.x
-            initialY = e.y
-            parent.requestDisallowInterceptTouchEvent(true)
-        } else if (e.action == MotionEvent.ACTION_MOVE) {
-            val dx = e.x - initialX
-            val dy = e.y - initialY
-            val isVpHorizontal = orientation == ORIENTATION_HORIZONTAL
-
-            // assuming ViewPager2 touch-slop is 2x touch-slop of child
-            val scaledDx = dx.absoluteValue * if (isVpHorizontal) .5f else 1f
-            val scaledDy = dy.absoluteValue * if (isVpHorizontal) 1f else .5f
-
-            if (scaledDx > touchSlop || scaledDy > touchSlop) {
-                if (isVpHorizontal == (scaledDy > scaledDx)) {
-                    // Gesture is perpendicular, allow all parents to intercept
-                    parent.requestDisallowInterceptTouchEvent(false)
-                } else {
-                    // Gesture is parallel, query child if movement in that direction is possible
-                    if (canChildScroll(orientation, if (isVpHorizontal) dx else dy)) {
-                        // Child can scroll, disallow all parents to intercept
-                        parent.requestDisallowInterceptTouchEvent(true)
-                    } else {
-                        // Child cannot scroll, allow all parents to intercept
-                        parent.requestDisallowInterceptTouchEvent(false)
-                    }
-                }
-            }
-        }
-    }
-}
\ No newline at end of file