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[Bug] Exception when using keyboard arrows to navigate list
Steps to reproduce
- Build and run the example project on Windows or Linux desktop. This also occurs on the Android emulator.
- Use the keyboard arrows to navigate up and down the list.
Expected results
No exceptions to be thrown when using arrow keys.
Actual results
The list updates correctly when navigating with the keyboard, but it still throws an error with each key press.
Package Version
5.0.1 - 7e3d31f
Platform
Android, Windows, Linux
Logs
Logs
══╡ EXCEPTION CAUGHT BY FOUNDATION LIBRARY ╞════════════════════════════════════════════════════════
The following assertion was thrown while dispatching notifications for
SuggestionsController<Product>:
RenderAbstractViewport.of() was called with a render object that was not a descendant of a
RenderAbstractViewport.
No RenderAbstractViewport render object ancestor could be found starting from the object that was
passed to RenderAbstractViewport.of().
The render object where the viewport search started was:
RenderRepaintBoundary#b5016 relayoutBoundary=up15
When the exception was thrown, this was the stack:
#0 RenderAbstractViewport.of.<anonymous closure> (package:flutter/src/rendering/viewport.dart:68:9)
#1 RenderAbstractViewport.of (package:flutter/src/rendering/viewport.dart:78:6)
#2 ScrollPosition.ensureVisible (package:flutter/src/widgets/scroll_position.dart:800:68)
#3 _PagePosition.ensureVisible (package:flutter/src/widgets/page_view.dart:337:18)
#4 ScrollableState._performEnsureVisible (package:flutter/src/widgets/scrollable.dart:1038:55)
#5 Scrollable.ensureVisible (package:flutter/src/widgets/scrollable.dart:474:45)
#6 FocusTraversalPolicy.defaultTraversalRequestFocusCallback (package:flutter/src/widgets/focus_traversal.dart:181:16)
#7 DirectionalFocusTraversalPolicyMixin.inDirection (package:flutter/src/widgets/focus_traversal.dart:917:31)
#8 FocusNode.focusInDirection (package:flutter/src/widgets/focus_manager.dart:1161:91)
#9 _SuggestionsBoxTraversalConnectorState.onControllerFocus (package:flutter_typeahead/src/common/box/suggestions_box_traversal_connector.dart:52:19)
#10 ChangeNotifier.notifyListeners (package:flutter/src/foundation/change_notifier.dart:433:24)
#11 SuggestionsController.focusBox (package:flutter_typeahead/src/common/base/suggestions_controller.dart:154:5)
#12 SuggestionsFieldTraversalConnector.onKeyEvent (package:flutter_typeahead/src/common/field/suggestions_field_traversal_connector.dart:25:20)
#13 SuggestionsFieldTraversalConnector.wrapOnKeyEvent.<anonymous closure> (package:flutter_typeahead/src/common/field/suggestions_field_traversal_connector.dart:41:31)
#14 _HighlightModeManager.handleKeyMessage (package:flutter/src/widgets/focus_manager.dart:1833:39)
#15 KeyEventManager._dispatchKeyMessage (package:flutter/src/services/hardware_keyboard.dart:996:34)
#16 KeyEventManager.handleRawKeyMessage (package:flutter/src/services/hardware_keyboard.dart:1061:17)
#17 BasicMessageChannel.setMessageHandler.<anonymous closure> (package:flutter/src/services/platform_channel.dart:223:49)
#18 _DefaultBinaryMessenger.setMessageHandler.<anonymous closure> (package:flutter/src/services/binding.dart:567:35)
#19 _invoke2 (dart:ui/hooks.dart:344:13)
#20 _ChannelCallbackRecord.invoke (dart:ui/channel_buffers.dart:45:5)
#21 _Channel.push (dart:ui/channel_buffers.dart:135:31)
#22 ChannelBuffers.push (dart:ui/channel_buffers.dart:343:17)
#23 PlatformDispatcher._dispatchPlatformMessage (dart:ui/platform_dispatcher.dart:722:22)
#24 _dispatchPlatformMessage (dart:ui/hooks.dart:257:31)
The SuggestionsController<Product> sending notification was:
Instance of 'SuggestionsController<Product>'
════════════════════════════════════════════════════════════════════════════════════════════════════
Another exception was thrown: RenderAbstractViewport.of() was called with a render object that was not a descendant of a RenderAbstractViewport.
Another exception was thrown: RenderAbstractViewport.of() was called with a render object that was not a descendant of a RenderAbstractViewport.
Another exception was thrown: RenderAbstractViewport.of() was called with a render object that was not a descendant of a RenderAbstractViewport.
Another exception was thrown: RenderAbstractViewport.of() was called with a render object that was not a descendant of a RenderAbstractViewport.
Another exception was thrown: RenderAbstractViewport.of() was called with a render object that was not a descendant of a RenderAbstractViewport.
Another exception was thrown: RenderAbstractViewport.of() was called with a render object that was not a descendant of a RenderAbstractViewport.
Another exception was thrown: RenderAbstractViewport.of() was called with a render object that was not a descendant of a RenderAbstractViewport.
Another exception was thrown: RenderAbstractViewport.of() was called with a render object that was not a descendant of a RenderAbstractViewport.
Another exception was thrown: RenderAbstractViewport.of() was called with a render object that was not a descendant of a RenderAbstractViewport.
Another exception was thrown: RenderAbstractViewport.of() was called with a render object that was not a descendant of a RenderAbstractViewport.
Another exception was thrown: RenderAbstractViewport.of() was called with a render object that was not a descendant of a RenderAbstractViewport.
Another exception was thrown: RenderAbstractViewport.of() was called with a render object that was not a descendant of a RenderAbstractViewport.
Another exception was thrown: RenderAbstractViewport.of() was called with a render object that was not a descendant of a RenderAbstractViewport.
Another exception was thrown: RenderAbstractViewport.of() was called with a render object that was not a descendant of a RenderAbstractViewport.
Another exception was thrown: RenderAbstractViewport.of() was called with a render object that was not a descendant of a RenderAbstractViewport.
Another exception was thrown: RenderAbstractViewport.of() was called with a render object that was not a descendant of a RenderAbstractViewport.
Another exception was thrown: RenderAbstractViewport.of() was called with a render object that was not a descendant of a RenderAbstractViewport.
Another exception was thrown: RenderAbstractViewport.of() was called with a render object that was not a descendant of a RenderAbstractViewport.
Another exception was thrown: RenderAbstractViewport.of() was called with a render object that was not a descendant of a RenderAbstractViewport.
Another exception was thrown: RenderAbstractViewport.of() was called with a render object that was not a descendant of a RenderAbstractViewport.
Another exception was thrown: RenderAbstractViewport.of() was called with a render object that was not a descendant of a RenderAbstractViewport.
Another exception was thrown: RenderAbstractViewport.of() was called with a render object that was not a descendant of a RenderAbstractViewport.
Thank you for your report. This problem is caused by an issue upstream.
https://github.com/flutter/flutter/issues/140547
The issue has already been fixed on the master branch of the flutter sdk. We will have to wait for the next flutter release for this issue to resolve here.
Today Flutter upgraded to 3.19.0 from 3.16.9. Error not throw, but focus not changed to next field, only the keyboard hide. I also add FocusScope.of(context).nextFocus(), but nothing happens.
textInputAction: TextInputAction.next,
onEditingComplete: () {
FocusScope.of(context).nextFocus();
},
+1 for this issue.
Has anyone managed to navigate between the options with the arrow keys?