In this tutorial, we will see how you can get double tap to close the application functionality in Flutter.
Let's Start
Step 1: Create a new Flutter Application or Open an existing application.
Step 2: Add a line like this to your package's pubspec.yaml
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Step 3: Once installed go to your home page or homescreen where you want your app to close and warp your home screen widget with a widget called DoubleBackToCloseApp.
for example:
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DoubleBackToCloseApp( snackbar: child: ) |
wrapping this widget homescreen will be your child widget and for snackbar you can add snackbar that will pop up when you press back button from homescreen.
for example:
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snackBar: const SnackBar( content: Text('Press again to close'), behavior: SnackBarBehavior.floating, backgroundColor: Colors.black12, ), |
With this you will get double back to close the app functionality in Flutter.
Complete Source Code to Double press back button to close the application
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import 'package:double_back_to_close_app/double_back_to_close_app.dart'; import 'package:flutter/material.dart';
void main() { runApp(MyApp()); }
class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( debugShowCheckedModeBanner: false, home: Demo(), ); } }
class Demo extends StatelessWidget { @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( backgroundColor: Colors.transparent, title: Text('Demo App'), ), extendBodyBehindAppBar: true, body: DoubleBackToCloseApp( snackBar: const SnackBar( content: Text('Press again to close'), behavior: SnackBarBehavior.floating, backgroundColor: Colors.black12, ), child: Container( decoration: const BoxDecoration( image: DecorationImage( image: AssetImage('assets/images/image.jpg'), fit: BoxFit.cover, )), ), ), ); } }
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Output:
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Conclusion: In this way, we have learned how we can get double back to close the app functionality in Flutter.
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