up

app/src/main/java/io/legado/app/ui/main/bookshelf/BooksFragment.kt

@@ -86,9 +86,7 @@ class BooksFragment : VMBaseFragment<BooksViewModel>(R.layout.fragment_books),
             -3 -> App.db.bookDao().observeAudio()
             else -> App.db.bookDao().observeByGroup(groupId)
         }
-        bookshelfLiveData?.observe(
+        bookshelfLiveData?.observe(this, Observer {
-            this,
-            Observer {
             val diffResult =
                 DiffUtil.calculateDiff(BooksDiffCallBack(booksAdapter.getItems(), it))
             booksAdapter.setItems(it, false)