up

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

@@ -180,7 +180,13 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_rea
                 }
                 changeSourceDialog?.show(supportFragmentManager, ChangeSourceDialog.tag)
             }
-            R.id.menu_refresh -> viewModel.refreshContent()
+            R.id.menu_refresh -> {
+                viewModel.bookData.value?.let {
+                    viewModel.curTextChapter = null
+                    page_view.upContent()
+                    viewModel.refreshContent(it)
+                }
+            }
         }
         return super.onCompatOptionsItemSelected(item)
     }

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

@@ -214,6 +214,7 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
         durChapterIndex++
         prevTextChapter = curTextChapter
         curTextChapter = nextTextChapter
+        nextTextChapter = null
         bookData.value?.let {
             loadContent(it, durChapterIndex.plus(1))
         }
@@ -223,21 +224,20 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
         durChapterIndex--
         nextTextChapter = curTextChapter
         curTextChapter = prevTextChapter
+        prevTextChapter = null
         bookData.value?.let {
             loadContent(it, durChapterIndex.minus(1))
         }
     }
 
-    fun refreshContent() {
+    fun refreshContent(book: Book) {
         execute {
-            bookData.value?.let { book ->
             App.db.bookChapterDao().getChapter(book.bookUrl, durChapterIndex)?.let { chapter ->
                 BookHelp.delContent(book, chapter)
                 loadContent(book, durChapterIndex)
             }
         }
     }
-    }
 
     override fun onCleared() {
         super.onCleared()