| // 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. |
| |
| // Flutter code sample for Hero |
| |
| import 'package:flutter/material.dart'; |
| |
| void main() => runApp(const HeroApp()); |
| |
| class HeroApp extends StatelessWidget { |
| const HeroApp({super.key}); |
| |
| @override |
| Widget build(BuildContext context) { |
| return const MaterialApp( |
| home: HeroExample(), |
| ); |
| } |
| } |
| |
| class HeroExample extends StatelessWidget { |
| const HeroExample({super.key}); |
| |
| @override |
| Widget build(BuildContext context) { |
| return Scaffold( |
| appBar: AppBar(title: const Text('Hero Sample')), |
| body: Column( |
| crossAxisAlignment: CrossAxisAlignment.start, |
| children: <Widget>[ |
| const SizedBox(height: 20.0), |
| ListTile( |
| leading: const Hero( |
| tag: 'hero-rectangle', |
| child: BoxWidget(size: Size(50.0, 50.0)), |
| ), |
| onTap: () => _gotoDetailsPage(context), |
| title: const Text( |
| 'Tap on the icon to view hero animation transition.', |
| ), |
| ), |
| ], |
| ), |
| ); |
| } |
| |
| void _gotoDetailsPage(BuildContext context) { |
| Navigator.of(context).push(MaterialPageRoute<void>( |
| builder: (BuildContext context) => Scaffold( |
| appBar: AppBar( |
| title: const Text('Second Page'), |
| ), |
| body: const Center( |
| child: Hero( |
| tag: 'hero-rectangle', |
| child: BoxWidget(size: Size(200.0, 200.0)), |
| ), |
| ), |
| ), |
| )); |
| } |
| } |
| |
| class BoxWidget extends StatelessWidget { |
| const BoxWidget({super.key, required this.size}); |
| |
| final Size size; |
| |
| @override |
| Widget build(BuildContext context) { |
| return Container( |
| width: size.width, |
| height: size.height, |
| color: Colors.blue, |
| ); |
| } |
| } |