优化

app/src/main/java/io/legado/app/ui/book/read/page/delegate/CoverPageDelegate.kt

@@ -57,7 +57,7 @@ class CoverPageDelegate(pageView: PageView) : HorizontalPageDelegate(pageView) {
         }
     }
 
-    override fun onAnimStart() {
+    override fun onAnimStart(animationSpeed: Int) {
         val distanceX: Float
         when (mDirection) {
             Direction.NEXT -> distanceX =
@@ -77,7 +77,7 @@ class CoverPageDelegate(pageView: PageView) : HorizontalPageDelegate(pageView) {
                     viewWidth - (touchX - startX)
                 }
         }
-        startScroll(touchX.toInt(), 0, distanceX.toInt(), 0)
+        startScroll(touchX.toInt(), 0, distanceX.toInt(), 0, animationSpeed)
     }
 
 }

app/src/main/java/io/legado/app/ui/book/read/page/delegate/HorizontalPageDelegate.kt

@@ -103,20 +103,20 @@ abstract class HorizontalPageDelegate(pageView: PageView) : PageDelegate(pageVie
         }
     }
 
-    override fun nextPageByAnim() {
+    override fun nextPageByAnim(animationSpeed: Int) {
         abort()
         if (!hasNext()) return
         setDirection(Direction.NEXT)
         setTouchPoint(viewWidth.toFloat(), 0f)
-        onAnimStart()
+        onAnimStart(animationSpeed)
     }
 
-    override fun prevPageByAnim() {
+    override fun prevPageByAnim(animationSpeed: Int) {
         abort()
         if (!hasPrev()) return
         setDirection(Direction.PREV)
         setTouchPoint(0f, 0f)
-        onAnimStart()
+        onAnimStart(animationSpeed)
     }
 
     override fun onDestroy() {

app/src/main/java/io/legado/app/ui/book/read/page/delegate/NoAnimPageDelegate.kt

@@ -5,7 +5,7 @@ import io.legado.app.ui.book.read.page.PageView
 
 class NoAnimPageDelegate(pageView: PageView) : HorizontalPageDelegate(pageView) {
 
-    override fun onAnimStart() {
+    override fun onAnimStart(animationSpeed: Int) {
         if (!isCancel) {
             pageView.fillPage(mDirection)
         }

app/src/main/java/io/legado/app/ui/book/read/page/delegate/PageDelegate.kt

@@ -24,7 +24,7 @@ abstract class PageDelegate(protected val pageView: PageView) :
         pageView.width * 0.66f, pageView.height * 0.66f
     )
     protected val context: Context = pageView.context
-    private val animationSpeed = 300
+    private val defaultAnimationSpeed = 300
 
     //起始点
     protected var startX: Float = 0f
@@ -115,7 +115,7 @@ abstract class PageDelegate(protected val pageView: PageView) :
         pageView.invalidate()
     }
 
-    protected fun startScroll(startX: Int, startY: Int, dx: Int, dy: Int) {
+    protected fun startScroll(startX: Int, startY: Int, dx: Int, dy: Int, animationSpeed: Int) {
         val duration = if (dx != 0) {
             (animationSpeed * abs(dx)) / viewWidth
         } else {
@@ -163,7 +163,7 @@ abstract class PageDelegate(protected val pageView: PageView) :
         return false
     }
 
-    open fun onAnimStart() {}//scroller start
+    open fun onAnimStart(animationSpeed: Int) {}//scroller start
 
     open fun onDraw(canvas: Canvas) {}//绘制
 
@@ -171,15 +171,15 @@ abstract class PageDelegate(protected val pageView: PageView) :
 
     open fun onScroll() {}//移动contentView， slidePage
 
-    abstract fun nextPageByAnim()
+    abstract fun nextPageByAnim(animationSpeed: Int)
 
-    abstract fun prevPageByAnim()
+    abstract fun prevPageByAnim(animationSpeed: Int)
 
     open fun keyTurnPage(direction: Direction) {
         if (isRunning) return
         when (direction) {
-            Direction.NEXT -> nextPageByAnim()
-            Direction.PREV -> prevPageByAnim()
+            Direction.NEXT -> nextPageByAnim(100)
+            Direction.PREV -> prevPageByAnim(100)
             else -> return
         }
     }
@@ -207,7 +207,7 @@ abstract class PageDelegate(protected val pageView: PageView) :
                         if (selectedOnDown) {
                             selectedOnDown = false
                         }
-                        if (!noNext) onAnimStart()
+                        if (!noNext) onAnimStart(defaultAnimationSpeed)
                     }
                 }
             }
@@ -247,7 +247,7 @@ abstract class PageDelegate(protected val pageView: PageView) :
             return true
         }
         if (isMoved) {
-            if (!noNext) onAnimStart()
+            if (!noNext) onAnimStart(defaultAnimationSpeed)
             return true
         }
         val x = e.x
@@ -259,9 +259,9 @@ abstract class PageDelegate(protected val pageView: PageView) :
             if (x > viewWidth / 2 ||
                 AppConfig.clickAllNext
             ) {
-                nextPageByAnim()
+                nextPageByAnim(defaultAnimationSpeed)
             } else {
-                prevPageByAnim()
+                prevPageByAnim(defaultAnimationSpeed)
             }
         }
         return true

app/src/main/java/io/legado/app/ui/book/read/page/delegate/ScrollPageDelegate.kt

@@ -12,7 +12,7 @@ class ScrollPageDelegate(pageView: PageView) : PageDelegate(pageView) {
     //速度追踪器
     private val mVelocity: VelocityTracker = VelocityTracker.obtain()
 
-    override fun onAnimStart() {
+    override fun onAnimStart(animationSpeed: Int) {
         //惯性滚动
         fling(
             0, touchY.toInt(), 0, mVelocity.yVelocity.toInt(),
@@ -78,13 +78,13 @@ class ScrollPageDelegate(pageView: PageView) : PageDelegate(pageView) {
         mVelocity.recycle()
     }
 
-    override fun nextPageByAnim() {
+    override fun nextPageByAnim(animationSpeed: Int) {
         abort()
-        startScroll(0, 0, 0, -ChapterProvider.visibleHeight)
+        startScroll(0, 0, 0, -ChapterProvider.visibleHeight, animationSpeed)
     }
 
-    override fun prevPageByAnim() {
+    override fun prevPageByAnim(animationSpeed: Int) {
         abort()
-        startScroll(0, 0, 0, ChapterProvider.visibleHeight)
+        startScroll(0, 0, 0, ChapterProvider.visibleHeight, animationSpeed)
     }
 }

app/src/main/java/io/legado/app/ui/book/read/page/delegate/SimulationPageDelegate.kt

@@ -154,7 +154,7 @@ class SimulationPageDelegate(pageView: PageView) : HorizontalPageDelegate(pageVi
         }
     }
 
-    override fun onAnimStart() {
+    override fun onAnimStart(animationSpeed: Int) {
         var dx: Float
         val dy: Float
         // dy 垂直方向滑动的距离，负值会使滚动向上滚动
@@ -184,7 +184,7 @@ class SimulationPageDelegate(pageView: PageView) : HorizontalPageDelegate(pageVi
                 (1 - touchY) // 防止mTouchY最终变为0
             }
         }
-        startScroll(touchX.toInt(), touchY.toInt(), dx.toInt(), dy.toInt())
+        startScroll(touchX.toInt(), touchY.toInt(), dx.toInt(), dy.toInt(), animationSpeed)
     }
 
     override fun onAnimStop() {

app/src/main/java/io/legado/app/ui/book/read/page/delegate/SlidePageDelegate.kt

@@ -8,7 +8,7 @@ class SlidePageDelegate(pageView: PageView) : HorizontalPageDelegate(pageView) {
 
     private val bitmapMatrix = Matrix()
 
-    override fun onAnimStart() {
+    override fun onAnimStart(animationSpeed: Int) {
         val distanceX: Float
         when (mDirection) {
             Direction.NEXT -> distanceX =
@@ -28,7 +28,7 @@ class SlidePageDelegate(pageView: PageView) : HorizontalPageDelegate(pageView) {
                     viewWidth - (touchX - startX)
                 }
         }
-        startScroll(touchX.toInt(), 0, distanceX.toInt(), 0)
+        startScroll(touchX.toInt(), 0, distanceX.toInt(), 0, animationSpeed)
     }
 
     override fun onDraw(canvas: Canvas) {