up

app/src/main/java/io/legado/app/ui/book/info/BookInfoActivity.kt

@@ -298,9 +298,15 @@ class BookInfoActivity :
             }
             requestCodeChapterList -> if (resultCode == Activity.RESULT_OK) {
                 viewModel.bookData.value?.let {
+                    data?.getIntExtra("index", it.durChapterIndex)?.let { index ->
+                        if (it.durChapterIndex != index) {
+                            it.durChapterIndex = index
+                            it.durChapterPos = 0
+                        }
                         readBook(it)
                     }
                 }
             }
         }
+    }
 }

app/src/main/java/io/legado/app/ui/book/info/BookInfoViewModel.kt

@@ -14,7 +14,6 @@ import io.legado.app.model.WebBook
 import kotlinx.coroutines.Dispatchers.IO
 
 class BookInfoViewModel(application: Application) : BaseViewModel(application) {
-
     val bookData = MutableLiveData<Book>()
     val chapterListData = MutableLiveData<List<BookChapter>>()
     val isLoadingData = MutableLiveData<Boolean>()