| // 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 [AnimatedAlign]. |
| |
| void main() => runApp(const AnimatedAlignExampleApp()); |
| |
| class AnimatedAlignExampleApp extends StatelessWidget { |
| const AnimatedAlignExampleApp({super.key}); |
| |
| static const Duration duration = Duration(seconds: 1); |
| static const Curve curve = Curves.fastOutSlowIn; |
| |
| @override |
| Widget build(BuildContext context) { |
| return MaterialApp( |
| home: Scaffold( |
| appBar: AppBar(title: const Text('AnimatedAlign Sample')), |
| body: const AnimatedAlignExample( |
| duration: duration, |
| curve: curve, |
| ), |
| ), |
| ); |
| } |
| } |
| |
| class AnimatedAlignExample extends StatefulWidget { |
| const AnimatedAlignExample({ |
| required this.duration, |
| required this.curve, |
| super.key, |
| }); |
| |
| final Duration duration; |
| |
| final Curve curve; |
| |
| @override |
| State<AnimatedAlignExample> createState() => _AnimatedAlignExampleState(); |
| } |
| |
| class _AnimatedAlignExampleState extends State<AnimatedAlignExample> { |
| bool selected = false; |
| |
| @override |
| Widget build(BuildContext context) { |
| return GestureDetector( |
| onTap: () { |
| setState(() { |
| selected = !selected; |
| }); |
| }, |
| child: Center( |
| child: Container( |
| width: 250.0, |
| height: 250.0, |
| color: Colors.red, |
| child: AnimatedAlign( |
| alignment: selected ? Alignment.topRight : Alignment.bottomLeft, |
| duration: widget.duration, |
| curve: widget.curve, |
| child: const FlutterLogo(size: 50.0), |
| ), |
| ), |
| ), |
| ); |
| } |
| } |