up

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

@@ -224,17 +224,10 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_rea
         launch {
             when (bookChapter.index) {
                 viewModel.durChapterIndex -> {
-                    tv_chapter_name.text = bookChapter.title
-                    tv_chapter_name.visible()
-                    if (!viewModel.isLocalBook) {
-                        tv_chapter_url.text = bookChapter.url
-                        tv_chapter_url.visible()
-                    }
-                    ChapterProvider.getTextChapter(content_text_view, bookChapter, content).let {
-                        viewModel.curTextChapter = it
+                    viewModel.curTextChapter =
+                        ChapterProvider.getTextChapter(content_text_view, bookChapter, content)
                     page_view.upContent()
-                        read_menu.upReadProgress(it.pageSize(), viewModel.durPageIndex)
-                    }
+                    curChapterChange()
                 }
                 viewModel.durChapterIndex - 1 -> {
                     viewModel.prevTextChapter = ChapterProvider.getTextChapter(content_text_view, bookChapter, content)
@@ -248,6 +241,18 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_rea
         }
     }
 
+    private fun curChapterChange() {
+        viewModel.curTextChapter?.let {
+            tv_chapter_name.text = it.title
+            tv_chapter_name.visible()
+            if (!viewModel.isLocalBook) {
+                tv_chapter_url.text = it.url
+                tv_chapter_url.visible()
+            }
+            read_menu.upReadProgress(it.pageSize(), viewModel.durPageIndex)
+        }
+    }
+
     override fun chapterSize(): Int {
         return viewModel.chapterSize
     }
@@ -293,10 +298,12 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_rea
 
     override fun moveToNextChapter() {
         viewModel.moveToNextChapter()
+        curChapterChange()
     }
 
     override fun moveToPrevChapter() {
         viewModel.moveToPrevChapter()
+        curChapterChange()
     }
 
     override fun clickCenter() {

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

@@ -45,8 +45,13 @@ object ChapterProvider {
 
             pageIndex++
         }
-        return TextChapter(bookChapter.index, bookChapter.title, textPages, pageLengths)
+        return TextChapter(
+            bookChapter.index,
+            bookChapter.title,
+            bookChapter.url,
+            textPages,
+            pageLengths
+        )
     }
 
-
 }

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

@@ -3,6 +3,7 @@ package io.legado.app.ui.widget.page
 data class TextChapter(
     val position: Int,
     val title: String,
+    val url: String,
     val pages: List<TextPage>,
     val pageLengths: List<Int>
 ) {