feat: 优化代码

app/src/main/java/io/legado/app/constant/PreferKey.kt

@@ -33,4 +33,5 @@ object PreferKey {
     const val changeSourceLoadToc = "changeSourceLoadToc"
     const val chineseConverterType = "chineseConverterType"
     const val launcherIcon = "launcherIcon"
+    const val selectText = "selectText"
 }

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

@@ -98,6 +98,7 @@ class PageView(context: Context, attrs: AttributeSet) :
             3 -> ScrollPageDelegate(this)
             else -> NoAnimPageDelegate(this)
         }
+        pageDelegate?.upSelectAble()
         upContent()
     }
 

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

@@ -1,7 +1,9 @@
 package io.legado.app.ui.book.read.page.delegate
 
 import android.view.MotionEvent
+import io.legado.app.constant.PreferKey
 import io.legado.app.ui.book.read.page.PageView
+import io.legado.app.utils.getPrefBoolean
 import io.legado.app.utils.screenshot
 import kotlin.math.abs
 
@@ -46,4 +48,10 @@ abstract class HorizontalPageDelegate(pageView: PageView) : PageDelegate(pageVie
         }
         return isMoved
     }
+
+    override fun upSelectAble() {
+        pageView.curPage
+            ?.contentTextView()
+            ?.isSelected = context.getPrefBoolean(PreferKey.selectText)
+    }
 }

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

@@ -1,5 +1,6 @@
 package io.legado.app.ui.book.read.page.delegate
 
+import android.content.Context
 import android.graphics.Bitmap
 import android.graphics.Canvas
 import android.graphics.RectF
@@ -21,6 +22,7 @@ abstract class PageDelegate(protected val pageView: PageView) {
         pageView.width * 0.33f, pageView.height * 0.33f,
         pageView.width * 0.66f, pageView.height * 0.66f
     )
+    protected val context: Context = pageView.context
     //起始点
     protected var startX: Float = 0.toFloat()
     protected var startY: Float = 0.toFloat()
@@ -205,6 +207,8 @@ abstract class PageDelegate(protected val pageView: PageView) {
         return detector.onTouchEvent(event)
     }
 
+    abstract fun upSelectAble()
+
     abstract fun onScrollStart()//scroller start
 
     abstract fun onDraw(canvas: Canvas)//绘制

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

@@ -2,8 +2,11 @@ package io.legado.app.ui.book.read.page.delegate
 
 import android.graphics.Canvas
 import android.graphics.Matrix
+import android.text.method.ScrollingMovementMethod
 import android.view.MotionEvent
+import io.legado.app.constant.PreferKey
 import io.legado.app.ui.book.read.page.PageView
+import io.legado.app.utils.getPrefBoolean
 import io.legado.app.utils.screenshot
 import kotlin.math.abs
 
@@ -117,4 +120,14 @@ class ScrollPageDelegate(pageView: PageView) : PageDelegate(pageView) {
         return isMoved
     }
 
+    override fun upSelectAble() {
+        if (context.getPrefBoolean(PreferKey.selectText)) {
+            pageView.curPage?.contentTextView()?.isSelected = true
+        } else {
+            pageView.curPage?.isSelected = false
+            pageView.curPage
+                ?.contentTextView()
+                ?.movementMethod = ScrollingMovementMethod.getInstance()
+        }
+    }
 }