Исключение при нажатии клавиш стрелка вверх или вниз внутри текстового фонда ⇐ Android

[Anonymous]

В простой форме, подобной форме входа в систему с двумя текстовыми формами для имени пользователя и пароля, когда фокус находится внутри первого поля, когда я нажимаю со стрелкой, я получаю эти исключения в консоли: < /p>
======== Exception caught by services library ======================================================
The following assertion was thrown while processing the key message handler:
'package:flutter/src/rendering/editable.dart': Failed assertion: line 198 pos 12: 'isValid': is not true.

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/issu ... =2_bug.yml

When the exception was thrown, this was the stack:
#2 VerticalCaretMovementRun.moveNext (package:flutter/src/rendering/editable.dart:198:12)
#3 _UpdateTextSelectionVerticallyAction.invoke (package:flutter/src/widgets/editable_text.dart:5665:37)
#4 _OverridableContextAction.invokeDefaultAction (package:flutter/src/widgets/actions.dart28)
#5 _OverridableActionMixin.invoke (package:flutter/src/widgets/actions.dart9)
#6 Action._invoke (package:flutter/src/widgets/actions.dart:336:19)
#7 ActionDispatcher.invokeActionIfEnabled (package:flutter/src/widgets/actions.dart:666:28)
#8 ShortcutManager.handleKeypress (package:flutter/src/widgets/shortcuts.dart:874:83)
#9 _ShortcutsState._handleOnKeyEvent (package:flutter/src/widgets/shortcuts.dart20)
#10 _HighlightModeManager.handleKeyMessage (package:flutter/src/widgets/focus_manager.dart39)
#11 KeyEventManager._dispatchKeyMessage (package:flutter/src/services/hardware_keyboard.dart34)
#12 KeyEventManager.handleRawKeyMessage (package:flutter/src/services/hardware_keyboard.dart17)
#13 BasicMessageChannel.setMessageHandler. (package:flutter/src/services/platform_channel.dart:235:49)
#14 _DefaultBinaryMessenger.setMessageHandler. (package:flutter/src/services/binding.dart:603:35)
#15 _invoke2 (dart:ui/hooks.dart:344:13)
#16 _ChannelCallbackRecord.invoke (dart:ui/channel_buffers.dart:45:5)
#17 _Channel.push (dart:ui/channel_buffers.dart:135:31)
#18 ChannelBuffers.push (dart:ui/channel_buffers.dart:343:17)
#19 PlatformDispatcher._dispatchPlatformMessage (dart:ui/platform_dispatcher.dart:737:22)
#20 _dispatchPlatformMessage (dart:ui/hooks.dart:257:31)
(elided 2 frames from class _AssertionError)
KeyMessage: KeyMessage([KeyDownEvent#fa910(physicalKey: PhysicalKeyboardKey#556a0(usbHidUsage: "0x00070051", debugName: "Arrow Down"), logicalKey: LogicalKeyboardKey#80d00(keyId: "0x100000301", keyLabel: "Arrow Down", debugName: "Arrow Down"), character: null, timeStamp: 0:03:57.655037)])
====================================================================================================
< /code>
Я ожидаю, что когда я нажимаю стрелку вниз, фокус перемещается в следующее текстовое поле, но он печатает исключения. Я могу перемещаться между полями, нажав вкладку или введите, но она не работает с клавишами стрелка вверх или вниз. Есть ли решение для стрелков? < /P>
TextFormField(
key: const Key('loginForm_usernameInput_textField'),
textInputAction: TextInputAction.next,
)


Подробнее здесь: https://stackoverflow.com/questions/793 ... tformfield