Use Animated Crossfade in Flutter class is a widget for helping the user to make a selection in material design. The animated Crossfade Widget creates a fade transition between two widgets when one widget is replaced by another.
In Flutter, The Animated Crossfade is used when you need to give a fade kind of transition between two widgets. It also supports any kind of flutter widget like Text, Images, and Icon as well. It allows us to change the animation as well as the duration of the animation.
You can find out more about the Flutter app development services page.
To implement the Animated Crossfade do follow the steps mentioned below.
1.) Create a Scaffold.
2.) Create the Boolean variable for changing the widget.
3.) Use the Animated Crossfade widget.
1.) Create a Scaffold. :
Inside Scaffold widgets, it Implements the basic material design visual layout structure. First, initialize the main app as a stateless widget.
This class provides APIs for showing drawers and bottom sheets. We can add the background color inside the scaffold widget.
It also supports special Material Design components, such as Drawers, AppBars, and SnackBars.
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void main() { runApp(const MyApp()); } class MyApp extends StatelessWidget { const MyApp({Key? key}) : super(key: key); // This widget is the root of your application. @override Widget build(BuildContext context) { return MaterialApp( debugShowCheckedModeBanner: false, title: 'Animated Crossfade Demo', theme: ThemeData( primarySwatch: Colors.blue, ), home: _AnimatedCrossfadeScreen(), ); } } |
2.) Create the Boolean variable for changing the widget.
Now, to change the widget crossfade, This widget is intended to be used to fade a pair of widgets with the same width. In the case where the two children have different heights, the animation crops overflowing children during the animation by aligning their top edge, which means that the bottom will be clipped.
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bool isChanging = false; |
3.) Use the Animated Crossfade widget.
In Animated Crossfade widget cross-fades between two given children and animates itself between their sizes.
The full code is mentioned below.
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import 'package:flutter/material.dart'; void main() { runApp(const MyApp()); } void main() { runApp(const MyApp()); } class MyApp extends StatelessWidget { const MyApp({Key? key}) : super(key: key); // This widget is the root of your application. @override Widget build(BuildContext context) { return MaterialApp( debugShowCheckedModeBanner: false, title: 'Animated Crossfade Demo', theme: ThemeData( primarySwatch: Colors.blue, ), home: _AnimatedCrossfadeScreen(), ); } } class _AnimatedCrossfadeScreen extends StatelessWidget { bool isChanging = false; @override Widget build(BuildContext context) { return Column( children: <Widget>[ Expanded( child: Center( child: AnimatedCrossFade( duration: const Duration(seconds: 1), firstChild: const FlutterLogo( style: FlutterLogoStyle.horizontal, size: 200.0), secondChild: const FlutterLogo( style: FlutterLogoStyle.stacked, size: 200.0), crossFadeState: isChanging ? CrossFadeState.showFirst : CrossFadeState.showSecond, ), ), ), Expanded( child: Center( child: ElevatedButton( child: Text("Click Me!"), onPressed: () { setState(() { setState(() { isChanging = !isChanging; }); }); }, ), ), ) ], ); } } |
We can now run the app on how to create Animated Crossfade in a flutter.
Finally, we have implemented the flow of creating an Animated Crossfade in a flutter.
Hope this blog helps you to create Animated Crossfade in a flutter.
So, I hope it will help you out in understanding and get a brief idea about it.
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