DropdownMenu crash if resize the window during the menu opening #124854
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
1, run the code on desktop
2,show the menu
3, resize the window
Expected results
no crash
Actual results
crash
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(
primarySwatch: Colors.blue,
),
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(
appBar: AppBar(title: Text(title)),
body: Center(
child: DropdownMenu(
width: MediaQuery.of(context).size.width,
dropdownMenuEntries: const [
DropdownMenuEntry(value: 1, label: "One"),
DropdownMenuEntry(value: 2, label: "Two"),
DropdownMenuEntry(value: 3, label: "Three"),
],
),
),
);
}
}Screenshots or Video
Screenshots / Video demonstration
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Logs
Logs
Resolving dependencies...
Got dependencies!
Launching lib\main.dart on Windows in debug mode...
Building Windows application...
√ Built build\windows\runner\Debug\demo_flutter.exe.
Debug service listening on ws://127.0.0.1:56081/ueZeQtMyRSQ=/ws
Syncing files to device Windows...
======== Exception caught by widgets library =======================================================
The following assertion was thrown building _ActionsScope:
setState() or markNeedsBuild() called during build.
This DropdownMenu<int> widget cannot be marked as needing to build because the framework is already in the process of building widgets. A widget can be marked as needing to be built during the build phase only if one of its ancestors is currently building. This exception is allowed because the framework builds parent widgets before children, which means a dirty descendant will always be built. Otherwise, the framework might not visit this widget during this build phase.
The widget on which setState() or markNeedsBuild() was called was: DropdownMenu<int>
dependencies: [Directionality, _InheritedTheme, _LocalizationsScope-[GlobalKey#ae3c9]]
state: _DropdownMenuState<int>#6d449
The widget which was currently being built when the offending call was made was: MenuAnchor
focusNode: null
style: MenuStyle#7c4e6(minimumSize: MaterialStatePropertyAll(Size(1263.0, 0.0)), maximumSize: MaterialStatePropertyAll(Size(Infinity, Infinity)), visualDensity: VisualDensity#d630e(h: 0.0, v: 0.0))
clipBehavior: hardEdge
alignmentOffset: Offset(0.0, 0.0)
child: "null"
dirty
dependencies: [Directionality, MediaQuery]
state: _MenuAnchorState#cc1bc
The relevant error-causing widget was:
DropdownMenu<int> DropdownMenu:file:///D:/Users/80256643/StudioProjects/demo_flutter/lib/main.dart:32:16
When the exception was thrown, this was the stack:
#0 Element.markNeedsBuild.<anonymous closure> (package:flutter/src/widgets/framework.dart:4651:9)
#1 Element.markNeedsBuild (package:flutter/src/widgets/framework.dart:4663:6)
#2 State.setState (package:flutter/src/widgets/framework.dart:1159:15)
#3 _DropdownMenuState.build.<anonymous closure> (package:flutter/src/material/dropdown_menu.dart:545:25)
#4 _MenuAnchorState._close (package:flutter/src/material/menu_anchor.dart:560:21)
#5 _MenuAnchorState.didChangeDependencies (package:flutter/src/material/menu_anchor.dart:321:13)
#6 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5248:13)
#7 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#8 StatefulElement.update (package:flutter/src/widgets/framework.dart:5274:5)
#9 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#10 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#11 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#12 ProxyElement.update (package:flutter/src/widgets/framework.dart:5417:5)
#13 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#14 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#15 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5251:11)
#16 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#17 StatefulElement.update (package:flutter/src/widgets/framework.dart:5274:5)
#18 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#19 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6442:14)
#20 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#21 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#22 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#23 ProxyElement.update (package:flutter/src/widgets/framework.dart:5417:5)
#24 _InheritedNotifierElement.update (package:flutter/src/widgets/inherited_notifier.dart:107:11)
#25 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#26 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#27 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5251:11)
#28 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#29 StatefulElement.update (package:flutter/src/widgets/framework.dart:5274:5)
#30 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#31 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#32 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5251:11)
#33 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#34 StatefulElement.update (package:flutter/src/widgets/framework.dart:5274:5)
#35 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#36 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#37 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5251:11)
#38 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#39 StatefulElement.update (package:flutter/src/widgets/framework.dart:5274:5)
#40 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#41 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6442:14)
#42 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#43 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#44 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#45 StatelessElement.update (package:flutter/src/widgets/framework.dart:5162:5)
#46 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#47 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#48 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#49 StatelessElement.update (package:flutter/src/widgets/framework.dart:5162:5)
#50 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#51 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#52 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#53 ProxyElement.update (package:flutter/src/widgets/framework.dart:5417:5)
#54 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#55 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#56 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#57 ProxyElement.update (package:flutter/src/widgets/framework.dart:5417:5)
#58 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#59 RenderObjectElement.updateChildren (package:flutter/src/widgets/framework.dart:6093:32)
#60 MultiChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6595:17)
#61 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#62 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#63 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#64 ProxyElement.update (package:flutter/src/widgets/framework.dart:5417:5)
#65 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#66 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#67 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5251:11)
#68 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#69 StatefulElement.update (package:flutter/src/widgets/framework.dart:5274:5)
#70 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#71 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#72 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5251:11)
#73 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#74 StatefulElement.update (package:flutter/src/widgets/framework.dart:5274:5)
#75 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#76 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#77 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#78 ProxyElement.update (package:flutter/src/widgets/framework.dart:5417:5)
#79 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#80 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#81 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5251:11)
#82 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#83 StatefulElement.update (package:flutter/src/widgets/framework.dart:5274:5)
#84 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#85 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6442:14)
#86 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#87 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#88 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#89 ProxyElement.update (package:flutter/src/widgets/framework.dart:5417:5)
#90 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#91 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6442:14)
#92 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#93 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#94 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5251:11)
#95 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#96 StatefulElement.update (package:flutter/src/widgets/framework.dart:5274:5)
#97 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#98 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#99 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5251:11)
#100 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#101 StatefulElement.update (package:flutter/src/widgets/framework.dart:5274:5)
#102 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#103 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#104 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#105 ProxyElement.update (package:flutter/src/widgets/framework.dart:5417:5)
#106 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#107 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#108 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#109 ProxyElement.update (package:flutter/src/widgets/framework.dart:5417:5)
#110 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#111 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#112 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#113 ProxyElement.update (package:flutter/src/widgets/framework.dart:5417:5)
#114 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#115 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#116 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5251:11)
#117 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#118 StatefulElement.update (package:flutter/src/widgets/framework.dart:5274:5)
#119 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#120 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#121 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#122 ProxyElement.update (package:flutter/src/widgets/framework.dart:5417:5)
#123 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#124 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#125 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5251:11)
#126 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#127 StatefulElement.update (package:flutter/src/widgets/framework.dart:5274:5)
#128 Element.updateChild (package:flutter/src/widgets/framework.dart:3686:15)
#129 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5111:16)
#130 Element.rebuild (package:flutter/src/widgets/framework.dart:4805:7)
#131 BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:2780:19)
#132 WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:903:21)
#133 RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:358:5)
#134 SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:1289:15)
#135 SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:1219:9)
#136 SchedulerBinding._handleDrawFrame (package:flutter/src/scheduler/binding.dart:1077:5)
#137 _invoke (dart:ui/hooks.dart:142:13)
#138 PlatformDispatcher._drawFrame (dart:ui/platform_dispatcher.dart:359:5)
#139 _drawFrame (dart:ui/hooks.dart:112:31)
====================================================================================================
======== Exception caught by scheduler library =====================================================
The following _TypeError was thrown during a scheduler callback:
Null check operator used on a null value
When the exception was thrown, this was the stack:
#0 _MenuAnchorState.didUpdateWidget.<anonymous closure> (package:flutter/src/material/menu_anchor.dart:345:22)
#1 SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:1289:15)
#2 SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:1228:9)
#3 SchedulerBinding._handleDrawFrame (package:flutter/src/scheduler/binding.dart:1077:5)
#4 _invoke (dart:ui/hooks.dart:142:13)
#5 PlatformDispatcher._drawFrame (dart:ui/platform_dispatcher.dart:359:5)
#6 _drawFrame (dart:ui/hooks.dart:112:31)
====================================================================================================Flutter Doctor output
Doctor output
crash