// Copyright 2014 The Flutter Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. import 'package:flutter/material.dart'; /// Flutter code sample for [Tooltip]. void main() => runApp(const TooltipExampleApp()); class TooltipExampleApp extends StatelessWidget { const TooltipExampleApp({super.key}); @override Widget build(BuildContext context) { return MaterialApp( theme: ThemeData(tooltipTheme: const TooltipThemeData(preferBelow: false)), home: const TooltipSample(title: 'Tooltip Sample'), ); } } class TooltipSample extends StatelessWidget { const TooltipSample({super.key, required this.title}); final String title; @override Widget build(BuildContext context) { final GlobalKey<TooltipState> tooltipkey = GlobalKey<TooltipState>(); return Scaffold( appBar: AppBar(title: Text(title)), body: Center( child: Tooltip( // Provide a global key with the "TooltipState" type to show // the tooltip manually when trigger mode is set to manual. key: tooltipkey, triggerMode: TooltipTriggerMode.manual, showDuration: const Duration(seconds: 1), message: 'I am a Tooltip', child: const Text('Tap on the FAB'), ), ), floatingActionButton: FloatingActionButton.extended( onPressed: () { // Show Tooltip programmatically on button tap. tooltipkey.currentState?.ensureTooltipVisible(); }, label: const Text('Show Tooltip'), ), ); } }