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a: accessibilityAccessibility, e.g. VoiceOver or TalkBack. (aka a11y)Accessibility, e.g. VoiceOver or TalkBack. (aka a11y)a: error messageError messages from the Flutter frameworkError messages from the Flutter frameworkf: material designflutter/packages/flutter/material repository.flutter/packages/flutter/material repository.found in release: 3.16Found to occur in 3.16Found to occur in 3.16frameworkflutter/packages/flutter repository. See also f: labels.flutter/packages/flutter repository. See also f: labels.has reproducible stepsThe issue has been confirmed reproducible and is ready to work onThe issue has been confirmed reproducible and is ready to work onr: fixedIssue is closed as already fixed in a newer versionIssue is closed as already fixed in a newer versionteam-designOwned by Design Languages teamOwned by Design Languages team
Description
Steps to reproduce
Try to run the sample code. We could not reproduce it on a local machine.
Expected results
No problems with the semantics part of a RangeSlider
Actual results
The issue appears in Sentry in release mode. The _startSemanticsNode field somehow became null. This seems to be related with #91029
Code sample
Code sample
import 'package:flutter/material.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
useMaterial3: true,
),
home: const MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatelessWidget {
const MyHomePage({super.key, required this.title});
final String title;
@override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: ElevatedButton(
onPressed: () {
showModalBottomSheet(
context: context,
builder: (context) {
return _BottomSheetRangeSlider();
},
);
},
child: Text("Show range slider"),
),
),
);
}
}
class _BottomSheetRangeSlider extends StatefulWidget {
const _BottomSheetRangeSlider({super.key});
@override
State<_BottomSheetRangeSlider> createState() => _BottomSheetRangeSliderState();
}
class _BottomSheetRangeSliderState extends State<_BottomSheetRangeSlider> {
double _s = 1;
double _e = 100;
@override
Widget build(BuildContext context) {
return SingleChildScrollView(
child: Column(
children: [
Column(
children: [
Padding(
padding: const EdgeInsets.all(8.0),
child: RangeSlider(
values: RangeValues(_s, _e),
min: 1,
max: 100,
divisions: 50,
onChanged: (RangeValues values) {
setState(() {
_s = values.start;
_e = values.end;
});
},
),
),
],
),
],
),
);
}
}Screenshots or Video
No response
Logs
Logs
_TypeError: Null check operator used on a null value
File "range_slider.dart", line 1700, in _RenderRangeSlider.assembleSemanticsNode
File "object.dart", line 4947, in _SwitchableSemanticsFragment.compileChildren
File "object.dart", line 4871, in _SwitchableSemanticsFragment.compileChildren
File "object.dart", line 4936, in _SwitchableSemanticsFragment.compileChildren
File "object.dart", line 3601, in RenderObject._updateSemantics
File "object.dart", line 1277, in PipelineOwner.flushSemantics
File "object.dart", line 1282, in PipelineOwner.flushSemantics
File "binding.dart", line 598, in RendererBinding.drawFrame
File "binding.dart", line 986, in WidgetsBinding.drawFrame
File "binding.dart", line 457, in RendererBinding._handlePersistentFrameCallback
File "binding.dart", line 1325, in SchedulerBinding._invokeFrameCallback
File "binding.dart", line 1255, in SchedulerBinding.handleDrawFrame
File "binding.dart", line 1113, in SchedulerBinding._handleDrawFrame
File "hooks.dart", line 312, in _invoke
File "platform_dispatcher.dart", line 383, in PlatformDispatcher._drawFrame
File "hooks.dart", line 283, in _drawFrameFlutter Doctor output
Doctor output
[√] Flutter (Channel stable, 3.16.7, on Microsoft Windows [Version 10.0.19045.3930], locale ru-RU)
[√] Windows Version (Installed version of Windows is version 10 or higher)
[√] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
[X] Chrome - develop for the web (Cannot find Chrome executable at .\Google\Chrome\Application\chrome.exe)
! Cannot find Chrome. Try setting CHROME_EXECUTABLE to a Chrome executable.
[√] Visual Studio - develop Windows apps (Visual Studio Community 2022 17.4.4)
[√] Android Studio (version 2023.1)
[√] IntelliJ IDEA Community Edition (version 2022.3)
[√] Connected device (3 available)
[√] Network resources
Metadata
Metadata
Assignees
Labels
a: accessibilityAccessibility, e.g. VoiceOver or TalkBack. (aka a11y)Accessibility, e.g. VoiceOver or TalkBack. (aka a11y)a: error messageError messages from the Flutter frameworkError messages from the Flutter frameworkf: material designflutter/packages/flutter/material repository.flutter/packages/flutter/material repository.found in release: 3.16Found to occur in 3.16Found to occur in 3.16frameworkflutter/packages/flutter repository. See also f: labels.flutter/packages/flutter repository. See also f: labels.has reproducible stepsThe issue has been confirmed reproducible and is ready to work onThe issue has been confirmed reproducible and is ready to work onr: fixedIssue is closed as already fixed in a newer versionIssue is closed as already fixed in a newer versionteam-designOwned by Design Languages teamOwned by Design Languages team
Type
Projects
Status
Done (PR merged)