错误是这样说的:I/flutter ( 5780): No Overlay widgetI/flutter ( 5780): Tooltip widgets require an Overlay widget ancestor for correct operation.I/flutter ( 5780): The most com
ticker inactive)):
I/flutter (12688): No Overlay widget found.I/flutter (12688): Tooltip widgets require an Overlay widget ancestor for correct operation.I/flutter (12688): The most common way to add an Overlay to an application is
/overlay_manager.dart:138:28: Warning: Operand of null-awareoperation '!'-0.5.0/lib/src/widgets/selection/overlay.dart:143:24: Warning: Operand of null
widgets/selection/overlay.dart:195:24: Warning: Operand of null-aware operation '!'- 'SchedulerBinding' is from 'package:flutter/src/scheduler/binding.dart' ('/D:/src1/flutter/packages/<em
我似乎不明白为什么在您点击按钮以显示Overlay并聚焦Textfield之后,下面的代码打印built三次(调用State.build)。在根目录下有一个MaterialApp,它的OverlayOverlay.of(context)应该能找到它。import "package:flutter/material.dart"; Sy
I/flutter (10952): This Overlay widget cannot be marked as needing to build because the framework is): Overlay-[LabeledGlobalKey<OverlayState>#6d6f2]
I/flutter (10952): The widget which was currentlypackage:flutter/…/widgets