一键抖动工具提示

作为一个选项，您可以创建简单的包装器小部件

完整示例：

import 'package:flutter/material.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(home: Home());
}
}
class Home extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: Text("Home")),
body: Center(
child: MyTooltip(
message: 'message',
child: Image.network('https://picsum.photos/seed/picsum/200/300', height: 40),
),
),
);
}
}
class MyTooltip extends StatelessWidget {
final Widget child;
final String message;
MyTooltip({@required this.message, @required this.child});
@override
Widget build(BuildContext context) {
final key = GlobalKey>();
return Tooltip(
key: key,
message: message,
child: GestureDetector(
behavior: HitTestBehavior.opaque,
onTap: () => _onTap(key),
child: child,
),
);
}
void _onTap(GlobalKey key) {
final dynamic tooltip = key.currentState;
tooltip?.ensureTooltipVisible();
}
}


• 
  I added a Timer after showing o Tooltip to hide it programmatically.

  Timer(Duration(milliseconds: 2500), () => tooltip?.dispose());