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ReorderebleListView will move the Semantics focus to the incorrect position when reordering. #100946
Description
Steps to Reproduce
- Execute
flutter runon the code sample - Turn on VoiceOver. (Only VoiceOver, No problem with Talkback)
- Focus to Item.
- Double tap + Long press to reorder item.
- Releasing the finger moves the focus to an incorrect position.
Expected results: Focus should be on Item.
Actual results: Step 5 will move the focus to the incorrect position and tapping on the Item will no longer focus it. (See attached video, the focus has shifted to the upper-left. It will be easier to understand if you turn off the mute.)
RPReplay_Final1648522463.MP4
Code sample
import 'package:flutter/material.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Reorder Test',
theme: ThemeData(primarySwatch: Colors.blue),
home: const MyHomePage(),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({Key? key}) : super(key: key);
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
final _itemKey = const ValueKey(1);
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: const Text('Reorder Test')),
body: ReorderableListView(
children: [
ListTile(
key: _itemKey,
title: const Text('Item'),
),
],
onReorder: (oldIndex, newIndex) {},
),
);
}
}Logs
No particular log is displayed during operation.
flutter analyze reporting to no Issues.
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Activity
darshankawar commentedon Mar 29, 2022
@ttada
It could be happening because there's no other item in the listview to focus on, so the focus goes back to back button by default. Also, accessibility on iOS works differently from Android.
Can you try to add more items in the list view and then follow the steps to see if the focus moves to next item on the list or goes back to the top ?
darshankawar commentedon Mar 29, 2022
Thanks for the update. I do see the same behavior, ie, after reordering the items from the listview, the semantics focus moves to the top of the screen, beyond appbar.
stable, master flutter doctor -v
darshankawar commentedon Mar 29, 2022
/cc @chunhtai
10 remaining items
Add iOS reorder semantics regression test
Preserve reparented iOS semantics children
Add iOS reorder semantics regression test
Preserve reparented iOS semantics children
Add iOS reorder semantics regression test
Preserve reparented iOS semantics children
[iOS] Preserve semantics parents after reparenting (flutter#189686)
github-actions commentedon Sep 15, 2026
This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of
flutter doctor -vand a minimal reproduction of the issue.