RangeSlider onChangeEnd method called twice when used in a showModalBottomSheet #128433
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
- Create a widget to render RangeSlider widget.
- Then show this widget inside
modalBottomSheetusing theshowModalBottomSheetmethod. - Now check the
onChangeEndcallback of theRangeSliderwidget. When the widget is used inside a sheet then theonChangeEndgets called twice.
Expected results
The onChangeEnd method is called only once.
Actual results
The onChangeEnd method is called twice.
- Once just after beginning the dragging.
- After the actual end of the dragging.
Code sample
Code sample
import 'package:flutter/material.dart';
/// Flutter code sample for [RangeSlider].
void main() => runApp(const RangeSliderExampleApp());
class RangeSliderExampleApp extends StatelessWidget {
const RangeSliderExampleApp({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(title: const Text('RangeSlider Sample')),
body: const MyButton(),
),
);
}
}
class MyButton extends StatelessWidget {
const MyButton({super.key});
@override
Widget build(BuildContext context) {
return Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
const RangeSliderExample(),
ElevatedButton(
onPressed: () {
showModalBottomSheet(
context: context,
builder: (ctx) {
return const RangeSliderExample();
},
);
},
child: const Text('Show range slider in bottom sheet')),
],
),
);
}
}
class RangeSliderExample extends StatefulWidget {
const RangeSliderExample({super.key});
@override
State<RangeSliderExample> createState() => _RangeSliderExampleState();
}
class _RangeSliderExampleState extends State<RangeSliderExample> {
RangeValues _currentRangeValues = const RangeValues(40, 80);
@override
Widget build(BuildContext context) {
return RangeSlider(
values: _currentRangeValues,
max: 100,
labels: RangeLabels(
_currentRangeValues.start.round().toString(),
_currentRangeValues.end.round().toString(),
),
onChanged: (RangeValues values) {
setState(() {
_currentRangeValues = values;
});
},
onChangeEnd: (RangeValues values) {
debugPrint('On Change end value: $values');
setState(() {
_currentRangeValues = values;
});
},
);
}
}
Screenshots or Video
Screenshots / Video demonstration
CleanShot.2023-06-07.at.17.42.14.mp4
Logs
Logs
flutter: On Change end value: RangeValues(31.500871268866575, 80.0)
flutter: On Change end value: RangeValues(31.500871268866575, 65.79406498614406)Flutter Doctor output
Doctor output
[✓] Flutter (Channel stable, 3.7.12, on macOS 13.4 22F66 darwin-arm64, locale en-DE)
• Flutter version 3.7.12 on channel stable at /users/abc/development/flutter
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Important issues not at the top of the work listflutter/packages/flutter/gestures repository.flutter/packages/flutter/material repository.Found to occur in 3.10Found to occur in 3.12flutter/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 versionA fix is in flight