| // 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'; |
| import 'package:flutter/scheduler.dart'; |
| |
| void main() { |
| // Slow down time to see Hero flight animation. |
| timeDilation = 15.0; |
| 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( |
| children: <Widget>[ |
| ListTile( |
| leading: Hero( |
| tag: 'hero-default-tween', |
| child: BoxWidget( |
| size: const Size(50.0, 50.0), |
| color:Colors.red[700]!.withOpacity(0.5), |
| ), |
| ), |
| title: const Text( |
| 'This red icon will use a default rect tween during the hero flight.', |
| ), |
| ), |
| const SizedBox(height: 10.0), |
| ListTile( |
| leading: Hero( |
| tag: 'hero-custom-tween', |
| createRectTween: (Rect? begin, Rect? end) { |
| return MaterialRectCenterArcTween(begin: begin, end: end); |
| }, |
| child: BoxWidget( |
| size: const Size(50.0, 50.0), |
| color:Colors.blue[700]!.withOpacity(0.5), |
| ), |
| ), |
| title: const Text( |
| 'This blue icon will use a custom rect tween during the hero flight.', |
| ), |
| ), |
| const SizedBox(height: 10), |
| ElevatedButton( |
| onPressed: () => _gotoDetailsPage(context), |
| child: const Text('Tap to trigger hero flight'), |
| ), |
| ], |
| ), |
| ); |
| } |
| |
| void _gotoDetailsPage(BuildContext context) { |
| Navigator.of(context).push(MaterialPageRoute<void>( |
| builder: (BuildContext context) => Scaffold( |
| appBar: AppBar( |
| title: const Text('Second Page'), |
| ), |
| body: Align( |
| alignment: Alignment.bottomRight, |
| child: Stack( |
| children: <Widget>[ |
| Hero( |
| tag: 'hero-custom-tween', |
| createRectTween: (Rect? begin, Rect? end) { |
| return MaterialRectCenterArcTween(begin: begin, end: end); |
| }, |
| child: BoxWidget( |
| size: const Size(400.0, 400.0), |
| color: Colors.blue[700]!.withOpacity(0.5), |
| ), |
| ), |
| Hero( |
| tag: 'hero-default-tween', |
| child: BoxWidget( |
| size: const Size(400.0, 400.0), |
| color: Colors.red[700]!.withOpacity(0.5), |
| ), |
| ), |
| ], |
| ), |
| ), |
| ), |
| )); |
| } |
| } |
| |
| class BoxWidget extends StatelessWidget { |
| const BoxWidget({ |
| super.key, |
| required this.size, |
| required this.color, |
| }); |
| |
| final Size size; |
| final Color color; |
| |
| @override |
| Widget build(BuildContext context) { |
| return Container( |
| width: size.width, |
| height: size.height, |
| color: color, |
| ); |
| } |
| } |