up

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

@@ -355,9 +355,9 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_rea
                 tv_chapter_url.visible()
             }
             read_menu.upReadProgress(it.pageSize().minus(1), viewModel.durPageIndex)
-            curPageChanged()
             tv_pre.isEnabled = viewModel.durChapterIndex != 0
             tv_next.isEnabled = viewModel.durChapterIndex != viewModel.chapterSize - 1
+            curPageChanged()
         }
     }
 

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

@@ -114,7 +114,11 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
         curTextChapter = nextTextChapter
         nextTextChapter = null
         bookData.value?.let {
-            loadContent(it, durChapterIndex)
+            if (curTextChapter == null) {
+                loadContent(it, durChapterIndex)
+            } else {
+                callBack?.upContent()
+            }
             loadContent(it, durChapterIndex.plus(1))
             launch(IO) {
                 for (i in 2..10) {
@@ -133,7 +137,11 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
         curTextChapter = prevTextChapter
         prevTextChapter = null
         bookData.value?.let {
-            loadContent(it, durChapterIndex)
+            if (curTextChapter == null) {
+                loadContent(it, durChapterIndex)
+            } else {
+                callBack?.upContent()
+            }
             loadContent(it, durChapterIndex.minus(1))
             launch(IO) {
                 for (i in -5..-2) {