up

app/src/main/java/io/legado/app/ui/readbook/ReadBookActivity.kt

@@ -4,6 +4,8 @@ import android.app.Activity
 import android.content.Intent
 import android.net.Uri
 import android.os.Bundle
+import android.text.Spannable
+import android.text.SpannableStringBuilder
 import android.view.KeyEvent
 import android.view.Menu
 import android.view.MenuItem
@@ -34,7 +36,10 @@ import kotlinx.android.synthetic.main.activity_read_book.*
 import kotlinx.android.synthetic.main.view_book_page.*
 import kotlinx.android.synthetic.main.view_read_menu.*
 import kotlinx.android.synthetic.main.view_title_bar.*
+import kotlinx.coroutines.Dispatchers.IO
+import kotlinx.coroutines.Dispatchers.Main
 import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import org.jetbrains.anko.*
 import org.jetbrains.anko.sdk27.listeners.onClick
 
@@ -415,9 +420,28 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_rea
             content_view.upStyle()
             page_view.upStyle()
         }
-        observeEvent<Int>(Bus.TTS_START) {
+        observeEvent<Int>(Bus.TTS_START) { chapterStart ->
+            launch(IO) {
                 viewModel.curTextChapter?.let {
-
+                    val pageStart = chapterStart - it.getReadLength(viewModel.durPageIndex)
+                    val page = it.page(viewModel.durPageIndex)
+                    if (page != null && page.text is SpannableStringBuilder) {
+                        page.text.removeSpan(ChapterProvider.readAloudSpan)
+                        var end = page.text.indexOf("\n", pageStart)
+                        if (end == -1) end = page.text.length - 1
+                        var start = page.text.lastIndexOf("\n", pageStart)
+                        if (start == -1) start = 0
+                        page.text.setSpan(
+                            ChapterProvider.readAloudSpan,
+                            start,
+                            end,
+                            Spannable.SPAN_INCLUSIVE_EXCLUSIVE
+                        )
+                        withContext(Main) {
+                            page_view.upContent()
+                        }
+                    }
+                }
             }
         }
         observeEvent<Boolean>(Bus.TTS_NEXT) {

app/src/main/java/io/legado/app/ui/widget/page/TextPageFactory.kt

@@ -1,7 +1,9 @@
 package io.legado.app.ui.widget.page
 
+import android.text.SpannableStringBuilder
 import io.legado.app.App
 import io.legado.app.R
+import io.legado.app.ui.widget.page.ChapterProvider.readAloudSpan
 
 class TextPageFactory private constructor(dataSource: DataSource) :
     PageFactory<TextPage>(dataSource) {
@@ -70,16 +72,22 @@ class TextPageFactory private constructor(dataSource: DataSource) :
     override fun nextPage(): TextPage? = dataSource.pageIndex().let { index ->
         dataSource.getCurrentChapter()?.let {
             if (index < it.pageSize() - 1) {
-                return dataSource.getCurrentChapter()?.page(index + 1)
+                return dataSource.getCurrentChapter()?.page(index + 1)?.apply {
-                    ?: TextPage(
+                    if (text is SpannableStringBuilder) {
+                        text.removeSpan(readAloudSpan)
+                    }
+                } ?: TextPage(
                     index + 1,
                     App.INSTANCE.getString(R.string.data_loading),
                     "index：${index + 1}"
                 )
             }
         }
-        return dataSource.getNextChapter()?.page(0)
+        return dataSource.getNextChapter()?.page(0)?.apply {
-            ?: TextPage(
+            if (text is SpannableStringBuilder) {
+                text.removeSpan(readAloudSpan)
+            }
+        } ?: TextPage(
                 index + 1,
                 App.INSTANCE.getString(R.string.data_loading),
                 "index：${index + 1}"
@@ -88,15 +96,21 @@ class TextPageFactory private constructor(dataSource: DataSource) :
 
     override fun previousPage(): TextPage? = dataSource.pageIndex().let { index ->
         if (index > 0) {
-            return dataSource.getCurrentChapter()?.page(index - 1)
+            return dataSource.getCurrentChapter()?.page(index - 1)?.apply {
-                ?: TextPage(
+                if (text is SpannableStringBuilder) {
+                    text.removeSpan(readAloudSpan)
+                }
+            } ?: TextPage(
                 index - 1,
                 App.INSTANCE.getString(R.string.data_loading),
                 "index：${index - 1}"
             )
         }
-        return dataSource.getPreviousChapter()?.lastPage()
+        return dataSource.getPreviousChapter()?.lastPage()?.apply {
-            ?: TextPage(
+            if (text is SpannableStringBuilder) {
+                text.removeSpan(readAloudSpan)
+            }
+        } ?: TextPage(
             index - 1,
             App.INSTANCE.getString(R.string.data_loading),
             "index：${index - 1}"