feat: 优化代码

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

@@ -36,7 +36,6 @@ import io.legado.app.ui.book.read.page.ChapterProvider
 import io.legado.app.ui.book.read.page.ContentTextView
 import io.legado.app.ui.book.read.page.PageView
 import io.legado.app.ui.book.read.page.delegate.PageDelegate
-import io.legado.app.ui.book.read.page.entities.SelectPoint
 import io.legado.app.ui.book.source.edit.BookSourceEditActivity
 import io.legado.app.ui.changesource.ChangeSourceDialog
 import io.legado.app.ui.chapterlist.ChapterListActivity
@@ -318,6 +317,20 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_boo
     @SuppressLint("ClickableViewAccessibility")
     override fun onTouch(v: View, event: MotionEvent): Boolean {
         when (event.action) {
+            MotionEvent.ACTION_DOWN -> {
+                when (v.id) {
+                    R.id.cursor_left -> {
+                        val startX = v.x + 10.dp
+                        val startY = v.y - 10.dp
+                        page_view.setSelectMoveStart(startX, startY)
+                    }
+                    R.id.cursor_right -> {
+                        val startX = v.x - 10.dp
+                        val startY = v.y - 10.dp
+                        page_view.setSelectMoveStart(startX, startY)
+                    }
+                }
+            }
             MotionEvent.ACTION_MOVE, MotionEvent.ACTION_UP -> {
                 when (v.id) {
                     R.id.cursor_left -> page_view.selectStartMove(event.x, event.y)
@@ -328,6 +341,18 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_boo
         return true
     }
 
+    override fun upSelectedStart(x: Float, y: Float) {
+        cursor_left.x = x - cursor_left.width
+        cursor_left.y = y
+        cursor_left.visible()
+    }
+
+    override fun upSelectedEnd(x: Float, y: Float) {
+        cursor_right.x = x
+        cursor_right.y = y
+        cursor_right.visible()
+    }
+
     override fun onCancelSelect() {
         cursor_left.invisible()
         cursor_right.invisible()
@@ -418,15 +443,6 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_boo
         }
     }
 
-    override fun selectText(selectPoint: SelectPoint) {
-        cursor_left.x = selectPoint.startX - cursor_left.width
-        cursor_left.y = selectPoint.startY
-        cursor_right.x = selectPoint.endX
-        cursor_right.y = selectPoint.endY
-        cursor_left.visible()
-        cursor_right.visible()
-    }
-
     override fun showReadAloudDialog() {
         ReadAloudDialog().show(supportFragmentManager, "readAloud")
     }

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

@@ -9,7 +9,6 @@ import io.legado.app.R
 import io.legado.app.constant.PreferKey
 import io.legado.app.help.ReadBookConfig
 import io.legado.app.lib.theme.accentColor
-import io.legado.app.ui.book.read.page.entities.SelectPoint
 import io.legado.app.ui.book.read.page.entities.TextPage
 import io.legado.app.utils.activity
 import io.legado.app.utils.getCompatColor
@@ -24,6 +23,7 @@ class ContentTextView(context: Context, attrs: AttributeSet?) : View(context, at
         }
     }
     private var activityCallBack: CallBack? = null
+    var headerHeight = 0
     var selectAble = context.getPrefBoolean(PreferKey.textSelectAble)
     var selectStartLine = 0
     var selectStartChar = 0
@@ -84,7 +84,7 @@ class ContentTextView(context: Context, attrs: AttributeSet?) : View(context, at
         }
     }
 
-    fun selectText(x: Float, y: Float): SelectPoint? {
+    fun selectText(x: Float, y: Float): Boolean {
         textPage?.let { textPage ->
             for ((lineIndex, textLine) in textPage.textLines.withIndex()) {
                 if (y > textLine.lineTop && y < textLine.lineBottom) {
@@ -96,19 +96,22 @@ class ContentTextView(context: Context, attrs: AttributeSet?) : View(context, at
                             selectStartChar = charIndex
                             selectEndLine = lineIndex
                             selectEndChar = charIndex
-                            return SelectPoint(
+                            upSelectedStart(
                                 textChar.leftBottomPosition.x,
-                                textChar.leftBottomPosition.y.toFloat(),
+                                textChar.leftBottomPosition.y.toFloat()
+                            )
+                            upSelectedEnd(
                                 textChar.rightTopPosition.x,
                                 textChar.leftBottomPosition.y.toFloat()
                             )
+                            return true
                         }
                     }
                     break
                 }
             }
         }
-        return null
+        return false
     }
 
     fun selectStartMove(x: Float, y: Float) {
@@ -117,18 +120,15 @@ class ContentTextView(context: Context, attrs: AttributeSet?) : View(context, at
                 if (y > textLine.lineTop && y < textLine.lineBottom) {
                     for ((charIndex, textChar) in textLine.textChars.withIndex()) {
                         if (x > textChar.leftBottomPosition.x && x < textChar.rightTopPosition.x) {
-                            textChar.selected = true
-                            invalidate()
+                            if (selectStartLine != lineIndex || selectStartChar != charIndex) {
                                 selectStartLine = lineIndex
                                 selectStartChar = charIndex
-                            selectEndLine = lineIndex
-                            selectEndChar = charIndex
-                            SelectPoint(
+                                upSelectedStart(
                                     textChar.leftBottomPosition.x,
-                                textChar.leftBottomPosition.y.toFloat(),
-                                textChar.rightTopPosition.x,
                                     textChar.leftBottomPosition.y.toFloat()
                                 )
+                                upSelectChars(textPage)
+                            }
                             break
                         }
                     }
@@ -144,18 +144,16 @@ class ContentTextView(context: Context, attrs: AttributeSet?) : View(context, at
                 if (y > textLine.lineTop && y < textLine.lineBottom) {
                     for ((charIndex, textChar) in textLine.textChars.withIndex()) {
                         if (x > textChar.leftBottomPosition.x && x < textChar.rightTopPosition.x) {
-                            textChar.selected = true
-                            invalidate()
-                            selectStartLine = lineIndex
-                            selectStartChar = charIndex
+                            if (selectEndLine != lineIndex || selectEndChar != charIndex) {
                                 selectEndLine = lineIndex
                                 selectEndChar = charIndex
-                            SelectPoint(
-                                textChar.leftBottomPosition.x,
-                                textChar.leftBottomPosition.y.toFloat(),
+                                upSelectedEnd(
                                     textChar.rightTopPosition.x,
                                     textChar.leftBottomPosition.y.toFloat()
                                 )
+                                upSelectChars(textPage)
+                            }
+                            break
                         }
                     }
                     break
@@ -164,6 +162,31 @@ class ContentTextView(context: Context, attrs: AttributeSet?) : View(context, at
         }
     }
 
+    private fun upSelectChars(textPage: TextPage) {
+        for ((lineIndex, textLine) in textPage.textLines.withIndex()) {
+            for ((charIndex, textChar) in textLine.textChars.withIndex()) {
+                textChar.selected = when (lineIndex) {
+                    selectStartLine -> {
+                        charIndex >= selectStartChar
+                    }
+                    selectEndLine -> {
+                        charIndex <= selectEndChar
+                    }
+                    else -> lineIndex in (selectStartLine + 1) until selectEndLine
+                }
+            }
+        }
+        invalidate()
+    }
+
+    private fun upSelectedStart(x: Float, y: Float) {
+        activityCallBack?.upSelectedStart(x, y + headerHeight)
+    }
+
+    private fun upSelectedEnd(x: Float, y: Float) {
+        activityCallBack?.upSelectedEnd(x, y + headerHeight)
+    }
+
     fun cancelSelect() {
         textPage?.let { textPage ->
             textPage.textLines.forEach { textLine ->
@@ -177,6 +200,8 @@ class ContentTextView(context: Context, attrs: AttributeSet?) : View(context, at
     }
 
     interface CallBack {
+        fun upSelectedStart(x: Float, y: Float)
+        fun upSelectedEnd(x: Float, y: Float)
         fun onCancelSelect()
     }
 }

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

@@ -3,34 +3,25 @@ package io.legado.app.ui.book.read.page
 import android.annotation.SuppressLint
 import android.content.Context
 import android.graphics.drawable.Drawable
-import android.util.AttributeSet
 import android.view.MotionEvent
 import android.widget.FrameLayout
 import io.legado.app.R
 import io.legado.app.constant.AppConst.TIME_FORMAT
 import io.legado.app.constant.PreferKey
 import io.legado.app.help.ReadBookConfig
-import io.legado.app.ui.book.read.page.entities.SelectPoint
 import io.legado.app.ui.book.read.page.entities.TextPage
 import io.legado.app.utils.*
 import kotlinx.android.synthetic.main.view_book_page.view.*
 import java.util.*
 
 
-class ContentView : FrameLayout {
+class ContentView(context: Context) : FrameLayout(context) {
     var callBack: CallBack? = null
-    private var headerHeight = 0
     private var pageSize: Int = 0
+    private var textSelectMoveStartX = 0f
+    private var textSelectMoveStartY = 0f
 
-    constructor(context: Context) : super(context) {
-        init()
-    }
-
-    constructor(context: Context, attrs: AttributeSet?) : super(context, attrs) {
-        init()
-    }
-
-    fun init() {
+    init {
         //设置背景防止切换背景时文字重叠
         setBackgroundColor(context.getCompatColor(R.color.background))
         inflate(context, R.layout.view_book_page, this)
@@ -55,12 +46,12 @@ class ContentView : FrameLayout {
                     headerPaddingRight.dp,
                     headerPaddingBottom.dp
                 )
-                headerHeight = ll_header.height
+                content_text_view.headerHeight = ll_header.height
                 page_panel.setPadding(0, 0, 0, 0)
             } else {
                 ll_header.gone()
-                headerHeight = context.getStatusBarHeight()
-                page_panel.setPadding(0, headerHeight, 0, 0)
+                content_text_view.headerHeight = context.getStatusBarHeight()
+                page_panel.setPadding(0, content_text_view.headerHeight, 0, 0)
             }
             content_text_view.setPadding(
                 paddingLeft.dp,
@@ -115,22 +106,22 @@ class ContentView : FrameLayout {
         content_text_view.selectAble = selectAble
     }
 
-    fun selectText(e: MotionEvent): SelectPoint? {
-        val y = e.y - headerHeight
-        val selectPoint = content_text_view.selectText(e.x, y)
-        selectPoint?.let {
-            it.startY = it.startY + headerHeight
-            it.endY = it.endY + headerHeight
+    fun selectText(e: MotionEvent): Boolean {
+        val y = e.y - content_text_view.headerHeight
+        return content_text_view.selectText(e.x, y)
     }
-        return selectPoint
+
+    fun setSelectMoveStart(x: Float, y: Float) {
+        textSelectMoveStartX = x
+        textSelectMoveStartY = y - content_text_view.headerHeight
     }
 
     fun selectStartMove(x: Float, y: Float) {
-        content_text_view.selectStartMove(x, y)
+        content_text_view.selectStartMove(textSelectMoveStartX + x, textSelectMoveStartY + y)
     }
 
     fun selectEndMove(x: Float, y: Float) {
-        content_text_view.selectEndMove(x, y)
+        content_text_view.selectEndMove(textSelectMoveStartX + x, textSelectMoveStartY + y)
     }
 
     fun cancelSelect() {

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

@@ -10,7 +10,6 @@ import io.legado.app.constant.PreferKey
 import io.legado.app.help.ReadBookConfig
 import io.legado.app.service.help.ReadBook
 import io.legado.app.ui.book.read.page.delegate.*
-import io.legado.app.ui.book.read.page.entities.SelectPoint
 import io.legado.app.ui.book.read.page.entities.TextChapter
 import io.legado.app.utils.activity
 import io.legado.app.utils.getPrefInt
@@ -184,6 +183,10 @@ class PageView(context: Context, attrs: AttributeSet) :
         nextPage.upBattery(battery)
     }
 
+    fun setSelectMoveStart(x: Float, y: Float) {
+        curPage.setSelectMoveStart(x, y)
+    }
+
     fun selectStartMove(x: Float, y: Float) {
         curPage.selectStartMove(x, y)
     }
@@ -263,7 +266,5 @@ class PageView(context: Context, attrs: AttributeSet) :
         fun clickCenter()
 
         fun screenOffTimerStart()
-
-        fun selectText(selectPoint: SelectPoint)
     }
 }

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

@@ -276,11 +276,7 @@ abstract class PageDelegate(protected val pageView: PageView) :
      * 长按选择
      */
     override fun onLongPress(e: MotionEvent) {
-        val textChar = curPage.selectText(e)
-        textChar?.let {
-            isTextSelected = true
-            pageView.callBack?.selectText(it)
-        }
+        isTextSelected = curPage.selectText(e)
     }
 
     /**