up

app/src/main/java/io/legado/app/ui/bookinfo/BookInfoActivity.kt

@@ -106,7 +106,13 @@ class BookInfoActivity : VMBaseActivity<BookInfoViewModel>(R.layout.activity_boo
     }
 
     private fun showChapter(chapterList: List<BookChapter>) {
-
+        viewModel.bookData.value?.let {
+            if (it.durChapterIndex < chapterList.size) {
+                tv_current_chapter_info.text = chapterList[it.durChapterIndex].title
+            } else {
+                tv_current_chapter_info.text = chapterList.last().title
+            }
+        }
         adapter.clearItems()
         adapter.addItems(chapterList)
     }
@@ -157,6 +163,11 @@ class BookInfoActivity : VMBaseActivity<BookInfoViewModel>(R.layout.activity_boo
             }
             changeSourceDialog?.show(supportFragmentManager, ChangeSourceDialog.tag)
         }
+        tv_current_chapter_info.onClick {
+            viewModel.bookData.value?.let {
+                rv_chapter_list.scrollToPosition(it.durChapterIndex)
+            }
+        }
     }
 
     override fun changeTo(book: Book) {

app/src/main/java/io/legado/app/ui/bookinfo/BookInfoViewModel.kt

@@ -62,10 +62,12 @@ class BookInfoViewModel(application: Application) : BaseViewModel(application) {
             WebBook(bookSource).getChapterList(book)
                 .onSuccess(IO) {
                     it?.let {
-                        if (inBookshelf) {
-                            App.db.bookChapterDao().insert(*it.toTypedArray())
+                        if (it.isNotEmpty()) {
+                            if (inBookshelf) {
+                                App.db.bookChapterDao().insert(*it.toTypedArray())
+                            }
+                            chapterListData.postValue(it)
                         }
-                        chapterListData.postValue(it)
                     }
                 }.onError {
                     toast(R.string.error_get_chapter_list)