Toggling enabled of Textfield notifies FocusNode listeners #126149
Description
Is there an existing issue for this?
- I have searched the existing issues
- I have read the guide to filing a bug
Steps to reproduce
- Attach a FocusNode to an input inside a Stateful Widget and listen to it
- Toggle/Rebuild the input with a different
enabledstate - Listeners are notified, although the focus did not change
Expected results
I would not expect the listeners to be notified when the input state changed between disabled and enabled without any change in focus.
Actual results
Listeners of the FocusNode are notified although the focus did not change.
Code sample
https://dartpad.dev/?id=112cc5c8b9cf28fac38b4b37656aede5
Code
import 'package:flutter/material.dart';
const Color darkBlue = Color.fromARGB(255, 18, 32, 47);
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
theme: ThemeData.dark().copyWith(
scaffoldBackgroundColor: darkBlue,
),
debugShowCheckedModeBanner: false,
home: Scaffold(
body: Center(
child: Container(child: MyWidget(), width: 300, height: 200)
),
),
);
}
}
class MyWidget extends StatefulWidget {
@override
MyWidgetState createState() => MyWidgetState();
}
class MyWidgetState extends State<MyWidget> {
late final FocusNode markFocusNode;
bool isLocked = false;
@override
void initState() {
markFocusNode = FocusNode(debugLabel: "MarkFocusNode")
..addListener(_onChangeFocus);
super.initState();
}
@override
void dispose() {
markFocusNode.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return Column(
children: [
TextField(
autofocus: false,
enabled: !isLocked,
focusNode: markFocusNode,
onChanged: (val) => print('onChanged'),
textInputAction: TextInputAction.next,
),
ElevatedButton(child: Text('Toggle Lock'), onPressed: () => setState(() => isLocked = !isLocked))
]
);
}
void _onChangeFocus() {
if (!markFocusNode.hasFocus) {
print('Lost focus');
}
}
}Logs
No response
Flutter Doctor output
Doctor output
[√] Flutter (Channel stable, 3.7.8, on Microsoft Windows [Version 10.0.19044.2846], locale de-DE)
• Flutter version 3.7.8 on channel stable at C:\SDKs\flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision 90c64ed42b (6 weeks ago), 2023-03-21 11:27:08 -0500
• Engine revision 9aa7816315
• Dart version 2.19.5
• DevTools version 2.20.1Metadata
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Labels
Entering text in a text field or keyboard related problemsIssues with https://api.flutter.dev/Focus traversal, gaining or losing focusFound to occur in 3.11Found to occur in 3.7flutter/packages/flutter repository. See also f: labels.The issue has been confirmed reproducible and is ready to work onIssue is closed as already fixed in a newer version
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