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A simple example demonstrating how to animate page transitions in Flutter.
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| import 'package:flutter/material.dart'; | |
| void main() => runApp(const MyApp()); | |
| class MyApp extends StatelessWidget { | |
| const MyApp({Key? key}) : super(key: key); | |
| @override | |
| Widget build(BuildContext context) { | |
| return const MaterialApp( | |
| title: 'Animating Route Transitions', | |
| home: HomePage(), | |
| ); | |
| } | |
| } | |
| class HomePage extends StatefulWidget { | |
| const HomePage({ | |
| Key? key, | |
| }) : super(key: key); | |
| @override | |
| _HomePageState createState() => _HomePageState(); | |
| } | |
| class _HomePageState extends State<HomePage> { | |
| void _normalTransitionPressed() { | |
| Navigator.of(context) | |
| .push(MaterialPageRoute(builder: (_) => const SecondPage())); | |
| } | |
| void _customTransitionPressed() { | |
| Navigator.of(context).push(_createRoute()); | |
| } | |
| /// To create a custom animation when doing a page transition, you need | |
| /// to define a PageRouteBuilder | |
| Route _createRoute() { | |
| return PageRouteBuilder( | |
| transitionDuration: const Duration(milliseconds: 300), | |
| pageBuilder: (context, animation, secondaryAnimation) => | |
| const SecondPage(), | |
| transitionsBuilder: (context, animation, secondaryAnimation, child) { | |
| // This can be any built in or custom transition. | |
| // Or simply return the widget without doing any animation. | |
| // | |
| // Try to change this to a [SlideTransition] | |
| return ScaleTransition( | |
| scale: animation, | |
| child: child, | |
| ); | |
| }, | |
| ); | |
| } | |
| @override | |
| Widget build(BuildContext context) { | |
| return Scaffold( | |
| body: Center( | |
| child: Column( | |
| mainAxisAlignment: MainAxisAlignment.center, | |
| children: <Widget>[ | |
| Text( | |
| 'Home Page', | |
| style: Theme.of(context).textTheme.headline4, | |
| ), | |
| ElevatedButton( | |
| onPressed: _normalTransitionPressed, | |
| child: const Text('Normal Transition'), | |
| ), | |
| ElevatedButton( | |
| onPressed: _customTransitionPressed, | |
| child: const Text('Custom Scale Transition'), | |
| ), | |
| ], | |
| ), | |
| ), | |
| ); | |
| } | |
| } | |
| class SecondPage extends StatelessWidget { | |
| const SecondPage({Key? key}) : super(key: key); | |
| @override | |
| Widget build(BuildContext context) { | |
| return Scaffold( | |
| body: Center( | |
| child: Column( | |
| mainAxisAlignment: MainAxisAlignment.center, | |
| children: <Widget>[ | |
| Text( | |
| 'Second Page', | |
| style: Theme.of(context).textTheme.headline4, | |
| ), | |
| ElevatedButton( | |
| onPressed: () { | |
| Navigator.of(context).pop(); | |
| }, | |
| child: const Text('Back'), | |
| ) | |
| ], | |
| ), | |
| ), | |
| ); | |
| } | |
| } | |
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