[RangeSlider] [Flutter 3.10] LateInitializationError: Field '_startThumbCenter@280317193' has not been initialized. #126648
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
- Using RangeSlider inside ListView or CustomScrollView.
- Add this slider after many widgets (to simulate just use SizedBox with big height). This way the slider is not visible on the screen initially.
- Now scroll until the RangeSlider is in viewport.
[Note] It works fine if used in Column with SingleChildScrollView but in my Case I have lots of widgets before slider and I can not use that approach.
Expected results
The RangeSlider should work in scroll view normally.
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: 'Bug',
theme: ThemeData(
colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
useMaterial3: true,
),
home: const MyHomePage(
min: 0,
max: 500,
),
);
}
}
class MyHomePage extends StatefulWidget {
final double min;
final double max;
const MyHomePage({
super.key,
required this.min,
required this.max,
});
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
late final ValueNotifier<(double, double)> rangeNotifier;
@override
void initState() {
super.initState();
rangeNotifier = ValueNotifier<(double, double)>((widget.min, widget.max));
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
backgroundColor: Theme.of(context).colorScheme.inversePrimary,
title: const Text('Bug'),
),
body: ListView(
children: [
SizedBox(
height: MediaQuery.of(context).size.height * 1.5,
child: const Placeholder(),
),
ValueListenableBuilder(
valueListenable: rangeNotifier,
builder: (context, range, child) {
return Padding(
padding: const EdgeInsets.symmetric(horizontal: 22),
child: RangeSlider(
min: widget.min,
max: widget.max,
values: RangeValues(range.$1, range.$2),
onChanged: (value) {
rangeNotifier.value = (value.start, value.end);
},
),
);
},
),
],
),
);
}
}
Screenshots or Video
Screenshots / Video demonstration
No visual sign of crash or error screen.
Simulator.Screen.Recording.-.iPhone.14.Pro.Max.-.2023-05-12.at.14.37.03.mp4
Logs
Logs
Restarted application in 670ms.
════════ Exception caught by scheduler library ═════════════════════════════════
The following LateError was thrown during a scheduler callback:
LateInitializationError: Field '_startThumbCenter@280317193' has not been initialized.
When the exception was thrown, this was the stack
#0 _RenderRangeSlider._startThumbCenter (package:flutter/src/material/range_slider.dart)
#1 _RenderRangeSlider.assembleSemanticsNode
#2 _SwitchableSemanticsFragment.compileChildren
#3 _SwitchableSemanticsFragment.compileChildren
#4 _SwitchableSemanticsFragment.compileChildren
#5 _SwitchableSemanticsFragment.compileChildren
#6 RenderObject._updateSemantics
#7 PipelineOwner.flushSemantics
#8 RendererBinding.drawFrame
#9 WidgetsBinding.drawFrame
#10 RendererBinding._handlePersistentFrameCallback
#11 SchedulerBinding._invokeFrameCallback
#12 SchedulerBinding.handleDrawFrame
#13 SchedulerBinding._handleDrawFrame
#14 _invoke (dart:ui/hooks.dart:142:13)
#15 PlatformDispatcher._drawFrame (dart:ui/platform_dispatcher.dart:359:5)
#16 _drawFrame (dart:ui/hooks.dart:112:31)
════════════════════════════════════════════════════════════════════════════════
════════ Exception caught by scheduler library ═════════════════════════════════
LateInitializationError: Field '_startThumbCenter@280317193' has not been initialized.
════════════════════════════════════════════════════════════════════════════════
════════ Exception caught by scheduler library ═════════════════════════════════
LateInitializationError: Field '_startThumbCenter@280317193' has not been initialized.
════════════════════════════════════════════════════════════════════════════════
════════ Exception caught by scheduler library ═════════════════════════════════
LateInitializationError: Field '_startThumbCenter@280317193' has not been initialized.
════════════════════════════════════════════════════════════════════════════════
════════ Exception caught by scheduler library ═════════════════════════════════
LateInitializationError: Field '_startThumbCenter@280317193' has not been initialized.
════════════════════════════════════════════════════════════════════════════════
════════ Exception caught by scheduler library ═════════════════════════════════
LateInitializationError: Field '_startThumbCenter@280317193' has not been initialized.
════════════════════════════════════════════════════════════════════════════════
════════ Exception caught by scheduler library ═════════════════════════════════
LateInitializationError: Field '_startThumbCenter@280317193' has not been initialized.
════════════════════════════════════════════════════════════════════════════════
════════ Exception caught by scheduler library ═════════════════════════════════
LateInitializationError: Field '_startThumbCenter@280317193' has not been initialized.
════════════════════════════════════════════════════════════════════════════════
Flutter Doctor output
Doctor output
[✓] Flutter (Channel stable, 3.10.0, on macOS 12.6.5 21G531 darwin-x64, locale en-GB)
• Flutter version 3.10.0 on channel stable at /Users/os/fvm/versions/stable
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision 84a1e904f4 (3 days ago), 2023-05-09 07:41:44 -0700
• Engine revision d44b5a94c9
• Dart version 3.0.0
• DevTools version 2.23.1
[✓] Android toolchain - develop for Android devices (Android SDK version 33.0.2)
• Android SDK at /Users/os/Library/Android/sdk
• Platform android-33, build-tools 33.0.2
• ANDROID_HOME = /Users/os/Library/Android/sdk
• ANDROID_SDK_ROOT = /Users/os/Library/Android/sdk
• Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 17.0.6+0-17.0.6b802.4-9586694)
• All Android licenses accepted.
[✓] Xcode - develop for iOS and macOS (Xcode 14.1)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Build 14B47b
• CocoaPods version 1.12.0
[✓] Android Studio (version 2022.2)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/9212-flutter
• Dart plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/6351-dart
• Java version OpenJDK Runtime Environment (build 17.0.6+0-17.0.6b802.4-9586694)
[✓] VS Code (version 1.78.1)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.64.0
[✓] Connected device (1 available)
• iPhone 14 Pro Max (mobile) • 3454690B-8535-47DD-A81F-AE7B3E9008CE • ios • com.apple.CoreSimulator.SimRuntime.iOS-16-1
(simulator)
[✓] Network resources
• All expected network resources are available.
• No issues found!Metadata
Metadata
Assignees
Labels
Important issues not at the top of the work listflutter/packages/flutter/material repository.Found to occur in 3.10Found to occur in 3.11flutter/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 versionOwned by Design Languages teamTriaged by Design Languages team
Type
Projects
Status