feat: 优化代码

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

@@ -46,9 +46,7 @@ import io.legado.app.utils.*
 import kotlinx.android.synthetic.main.activity_book_read.*
 import kotlinx.android.synthetic.main.view_read_menu.*
 import kotlinx.coroutines.Dispatchers.IO
-import kotlinx.coroutines.Dispatchers.Main
 import kotlinx.coroutines.launch
-import kotlinx.coroutines.withContext
 import org.jetbrains.anko.sdk27.listeners.onClick
 import org.jetbrains.anko.startActivity
 import org.jetbrains.anko.startActivityForResult
@@ -543,12 +541,11 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_boo
         observeEventSticky<Int>(EventBus.TTS_START) { chapterStart ->
             launch(IO) {
                 if (BaseReadAloudService.isPlay()) {
-                    ReadBook.curTextChapter?.let {
+                    ReadBook.curTextChapter?.let { textChapter ->
-                        val pageStart = chapterStart - it.getReadLength(ReadBook.durPageIndex)
+                        val pageStart =
-                        it.page(ReadBook.durPageIndex)?.upPageAloudSpan(pageStart)
+                            chapterStart - textChapter.getReadLength(ReadBook.durPageIndex)
-                        withContext(Main) {
+                        textChapter.page(ReadBook.durPageIndex)?.upPageAloudSpan(pageStart)
-                            page_view.upContent()
+                        upContent()
-                        }
                     }
                 }
             }

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

@@ -178,6 +178,7 @@ object ChapterProvider {
             val words =
                 title.substring(layout.getLineStart(lineIndex), layout.getLineEnd(lineIndex))
             stringBuilder.append(words)
+            textLine.text = words
             val desiredWidth = layout.getLineMax(lineIndex)
             if (lineIndex != layout.lineCount - 1) {
                 val gapCount: Int = words.length - 1
@@ -201,6 +202,7 @@ object ChapterProvider {
                 }
             } else {
                 //最后一行
+                textLine.text = "$words\n"
                 stringBuilder.append("\n")
                 var x = 0
                 for (i in words.indices) {
@@ -262,6 +264,7 @@ object ChapterProvider {
             var words =
                 text.substring(layout.getLineStart(lineIndex), layout.getLineEnd(lineIndex))
             stringBuilder.append(words)
+            textLine.text = words
             val desiredWidth = layout.getLineMax(lineIndex)
             if (lineIndex == 0 && layout.lineCount > 1) {
                 //第一行
@@ -297,6 +300,7 @@ object ChapterProvider {
             } else if (lineIndex == layout.lineCount - 1) {
                 //最后一行
                 stringBuilder.append("\n")
+                textLine.text = "$words\n"
                 var x = 0
                 for (i in words.indices) {
                     val char = words[i].toString()

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

@@ -1,6 +1,7 @@
 package io.legado.app.ui.book.read.page.entities
 
 data class TextLine(
+    var text: String = "",
     val textChars: ArrayList<TextChar> = arrayListOf(),
     var lineTop: Int = 0,
     var lineBottom: Int = 0,

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

@@ -24,10 +24,9 @@ data class TextPage(
     fun upPageAloudSpan(pageStart: Int) {
         if (text is SpannableStringBuilder) {
             removePageAloudSpan()
-            var end = text.indexOf("\n", pageStart)
+            for (textLine in textLines) {
-            if (end == -1) end = text.length
+
-            var start = text.lastIndexOf("\n", pageStart)
+            }
-            if (start == -1) start = 0
         }
     }
 }