════════ Exception caught by rendering library ═════════════════════════════════
The following assertion was thrown during performLayout():
RenderBox.size accessed beyond the scope of resize, layout, or permitted parent access. RenderBox can always access its own size, otherwise, the only object that is allowed to read RenderBox.size is its parent, if they have said they will. It you hit this assert trying to access a child's size, pass "parentUsesSize: true" to that child's layout() in RenderFractionalTranslation.performLayout.
'package:flutter/src/rendering/box.dart':
Failed assertion: line 2178 pos 16: 'sizeAccessAllowed'
Either the assertion indicates an error in the framework itself, or we should provide substantially more information in this error message to help you determine and fix the underlying cause.
In either case, please report this assertion by filing a bug on GitHub:
https://github.com/flutter/flutter/issues/new?template=2_bug.yml
The relevant error-causing widget was:
TextFormField TextFormField:file:///xxxxxx/lib/main.dart:101:17
When the exception was thrown, this was the stack:
#2 RenderBox.size.<anonymous closure> (package:flutter/src/rendering/box.dart:2178:16)
#3 RenderBox.size (package:flutter/src/rendering/box.dart:2199:6)
#4 RenderFractionalTranslation.applyPaintTransform (package:flutter/src/rendering/proxy_box.dart:2952:24)
#5 RenderObject.getTransformTo (package:flutter/src/rendering/object.dart:3411:25)
#6 RenderBox.localToGlobal (package:flutter/src/rendering/box.dart:2887:39)
#7 RenderEditable._snapToPhysicalPixel (package:flutter/src/rendering/editable.dart:2276:33)
#8 RenderEditable.getLocalRectForCaret (package:flutter/src/rendering/editable.dart:1822:28)
#9 EditableTextState._handleContextMenuOnScroll (package:flutter/src/widgets/editable_text.dart:3852:56)
#10 EditableTextState.build.<anonymous closure> (package:flutter/src/widgets/editable_text.dart:5228:21)
#11 _NotificationElement.onNotification (package:flutter/src/widgets/notification_listener.dart:130:38)
#12 _NotificationNode.dispatchNotification (package:flutter/src/widgets/framework.dart:3403:18)
#13 Element.dispatchNotification (package:flutter/src/widgets/framework.dart:5077:24)
#14 Notification.dispatch (package:flutter/src/widgets/notification_listener.dart:60:13)
#15 ScrollActivity.dispatchScrollStartNotification (package:flutter/src/widgets/scroll_activity.dart:99:65)
#16 ScrollPosition.didStartScroll (package:flutter/src/widgets/scroll_position.dart:1027:15)
#17 ScrollPosition.beginActivity (package:flutter/src/widgets/scroll_position.dart:1018:7)
#18 ScrollPositionWithSingleContext.beginActivity (package:flutter/src/widgets/scroll_position_with_single_context.dart:113:11)
#19 ScrollPositionWithSingleContext.goBallistic (package:flutter/src/widgets/scroll_position_with_single_context.dart:146:7)
#20 IdleScrollActivity.applyNewDimensions (package:flutter/src/widgets/scroll_activity.dart:175:14)
#21 ScrollPosition.applyNewDimensions (package:flutter/src/widgets/scroll_position.dart:718:15)
#22 ScrollPositionWithSingleContext.applyNewDimensions (package:flutter/src/widgets/scroll_position_with_single_context.dart:102:11)
#23 ScrollPosition.applyContentDimensions (package:flutter/src/widgets/scroll_position.dart:647:7)
#24 RenderEditable.performLayout (package:flutter/src/rendering/editable.dart:2345:12)
#25 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#26 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:21)
#27 _RenderSizeChangedWithCallback.performLayout (package:flutter/src/widgets/size_changed_layout_notifier.dart:90:11)
#28 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#29 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:21)
#30 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#31 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:21)
#32 RenderLeaderLayer.performLayout (package:flutter/src/rendering/proxy_box.dart:4751:11)
#33 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#34 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:21)
#35 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#36 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:21)
#37 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#38 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:21)
#39 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#40 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:21)
#41 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#42 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:21)
#43 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#44 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:21)
#45 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#46 RenderTapRegion.layout (package:flutter/src/widgets/tap_region.dart:568:11)
#47 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:21)
#48 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#49 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:21)
#50 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#51 ChildLayoutHelper.layoutChild (package:flutter/src/rendering/layout_helper.dart:61:11)
#52 _RenderDecoration._layout (package:flutter/src/material/input_decorator.dart:1036:67)
#53 _RenderDecoration.performLayout (package:flutter/src/material/input_decorator.dart:1299:44)
#54 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#55 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:21)
#56 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#57 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:21)
#58 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#59 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:21)
#60 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#61 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:21)
#62 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#63 RenderTapRegion.layout (package:flutter/src/widgets/tap_region.dart:568:11)
#64 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:21)
#65 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#66 ChildLayoutHelper.layoutChild (package:flutter/src/rendering/layout_helper.dart:61:11)
#67 RenderFlex._computeSizes (package:flutter/src/rendering/flex.dart:985:73)
#68 RenderFlex.performLayout (package:flutter/src/rendering/flex.dart:1051:32)
#69 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#70 RenderPadding.performLayout (package:flutter/src/rendering/shifted_box.dart:234:12)
#71 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#72 _RenderSingleChildViewport.performLayout (package:flutter/src/widgets/single_child_scroll_view.dart:483:14)
#73 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#74 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:21)
#75 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#76 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:21)
#77 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#78 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:21)
#79 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#80 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:21)
#81 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#82 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:21)
#83 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#84 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:21)
#85 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#86 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:21)
#87 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#88 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:21)
#89 _RenderCustomClip.performLayout (package:flutter/src/rendering/proxy_box.dart:1448:11)
#90 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#91 ChildLayoutHelper.layoutChild (package:flutter/src/rendering/layout_helper.dart:61:11)
#92 RenderStack._computeSize (package:flutter/src/rendering/stack.dart:595:43)
#93 RenderStack.performLayout (package:flutter/src/rendering/stack.dart:622:12)
#94 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#95 RenderPadding.performLayout (package:flutter/src/rendering/shifted_box.dart:234:12)
#96 RenderObject.layout (package:flutter/src/rendering/object.dart:2608:7)
#97 MultiChildLayoutDelegate.layoutChild (package:flutter/src/rendering/custom_layout.dart:173:12)
#98 _ScaffoldLayout.performLayout (package:flutter/src/material/scaffold.dart:1092:7)
#99 MultiChildLayoutDelegate._callPerformLayout (package:flutter/src/rendering/custom_layout.dart:237:7)
#100 RenderCustomMultiChildLayoutBox.performLayout (package:flutter/src/rendering/custom_layout.dart:404:14)
#101 RenderObject._layoutWithoutResize (package:flutter/src/rendering/object.dart:2446:7)
#102 PipelineOwner.flushLayout (package:flutter/src/rendering/object.dart:1052:18)
#103 PipelineOwner.flushLayout (package:flutter/src/rendering/object.dart:1065:15)
#104 RendererBinding.drawFrame (package:flutter/src/rendering/binding.dart:602:23)
#105 WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:1164:13)
#106 RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:468:5)
#107 SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:1397:15)
#108 SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:1318:9)
#109 SchedulerBinding._handleDrawFrame (package:flutter/src/scheduler/binding.dart:1176:5)
#110 _invoke (dart:ui/hooks.dart:312:13)
#111 PlatformDispatcher._drawFrame (dart:ui/platform_dispatcher.dart:419:5)
#112 _drawFrame (dart:ui/hooks.dart:283:31)
(elided 2 frames from class _AssertionError)
The following RenderObject was being processed when the exception was fired: RenderEditable#b2357 relayoutBoundary=up31 NEEDS-LAYOUT NEEDS-PAINT
needs compositing
parentData: <none> (can use size)
constraints: BoxConstraints(w=416.0, 0.0<=h<=Infinity)
size: Size(416.0, 24.0)
cursorColor: Color(0xff6750a4)
showCursor: ValueNotifier<bool>#8d4ea(true)
maxLines: 1
minLines: null
selectionColor: Color(0x666750a4)
locale: en_US
selection: TextSelection.collapsed(offset: 197, affinity: TextAffinity.downstream, isDirectional: false)
offset: ScrollPositionWithSingleContext#82945(offset: 1463.3, range: 0.0..1407.2, viewport: 416.0, ScrollableState, ClampingScrollPhysics -> RangeMaintainingScrollPhysics -> ClampingScrollPhysics -> RangeMaintainingScrollPhysics, BallisticScrollActivity#2c9f9(AnimationController#c1116(▶ 1463.333; for BallisticScrollActivity)), ScrollDirection.idle)
text: TextSpan
debugLabel: ((englishLike bodyLarge 2021).merge((blackMountainView bodyLarge).apply)).merge(unknown)
inherit: false
color: Color(0xff1d1b20)
family: Roboto
size: 16.0
weight: 400
letterSpacing: 0.5
baseline: alphabetic
height: 1.5x
leadingDistribution: even
decoration: Color(0xff1d1b20) TextDecoration.none
"https://www.google.com/search?q=UnmodifiableUint8ListView+flutter&oq=UnmodifiableUint8ListView+flutter&gs_lcrp=EgZjaHJvbWUyBggAEEUYOTIGCAEQRRg8MgYIAhBFGDwyBggDEEUYPNIBCDI4MzhqMGo0qAIAsAIB&sourceid=&ie=UTF-8"
RenderObject: RenderEditable#b2357 relayoutBoundary=up31 NEEDS-LAYOUT NEEDS-PAINT
needs compositing
parentData: <none> (can use size)
constraints: BoxConstraints(w=416.0, 0.0<=h<=Infinity)
size: Size(416.0, 24.0)
cursorColor: Color(0xff6750a4)
showCursor: ValueNotifier<bool>#8d4ea(true)
maxLines: 1
minLines: null
selectionColor: Color(0x666750a4)
locale: en_US
selection: TextSelection.collapsed(offset: 197, affinity: TextAffinity.downstream, isDirectional: false)
offset: ScrollPositionWithSingleContext#82945(offset: 1463.3, range: 0.0..1407.2, viewport: 416.0, ScrollableState, ClampingScrollPhysics -> RangeMaintainingScrollPhysics -> ClampingScrollPhysics -> RangeMaintainingScrollPhysics, BallisticScrollActivity#2c9f9(AnimationController#c1116(▶ 1463.333; for BallisticScrollActivity)), ScrollDirection.idle)
text: TextSpan
debugLabel: ((englishLike bodyLarge 2021).merge((blackMountainView bodyLarge).apply)).merge(unknown)
inherit: false
color: Color(0xff1d1b20)
family: Roboto
size: 16.0
weight: 400
letterSpacing: 0.5
baseline: alphabetic
height: 1.5x
leadingDistribution: even
decoration: Color(0xff1d1b20) TextDecoration.none
"https://www.google.com/search?q=UnmodifiableUint8ListView+flutter&oq=UnmodifiableUint8ListView+flutter&gs_lcrp=EgZjaHJvbWUyBggAEEUYOTIGCAEQRRg8MgYIAhBFGDwyBggDEEUYPNIBCDI4MzhqMGo0qAIAsAIB&sourceid=&ie=UTF-8"
════════════════════════════════════════════════════════════════════════════════
Steps to reproduce
When using MaterialPageRoute for navigation, no exception occurs.
An exception will occur.
Expected results
The expected behavior is that the selected text should be deleted without an exception occurring.
Actual results
When navigating between screens in a MaterialApp, using MaterialPageRoute does not cause any exceptions with TextFormField. However, using CupertinoPageRoute causes an exception with TextFormField.
The exception occurs only when the maxLines property of TextFormField is set to 1. It happens when a long string is pasted into the field, and the text at the right end is visible. If the text is selected (either a range or all text) and the Backspace key is pressed, an exception is thrown. This issue does not occur when cutting, pasting, or entering other characters.
By the way, there were no issues with version 3.19.6. I'm not certain about the exact version, but I believe the issue started occurring with version 3.2x.
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