// 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 MaterialBanner import 'package:flutter/material.dart'; void main() => runApp(const MyApp()); class MyApp extends StatelessWidget { const MyApp({Key? key}) : super(key: key); static const String _title = 'Flutter Code Sample'; @override Widget build(BuildContext context) { return const MaterialApp( title: _title, home: MyStatelessWidget(), ); } } class MyStatelessWidget extends StatelessWidget { const MyStatelessWidget({Key? key}) : super(key: key); @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: const Text('The MaterialBanner is below'), ), body: Center( child: ElevatedButton( child: const Text('Show MaterialBanner'), onPressed: () => ScaffoldMessenger.of(context).showMaterialBanner( const MaterialBanner( padding: EdgeInsets.all(20), content: Text('Hello, I am a Material Banner'), leading: Icon(Icons.agriculture_outlined), backgroundColor: Colors.green, actions: <Widget>[ TextButton( onPressed: null, child: Text('DISMISS'), ), ], ), ), ), ), ); } }