// 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. // Template: dev/snippets/config/templates/stateless_widget_scaffold_center.tmpl // // Comment lines marked with "▼▼▼" and "▲▲▲" are used for authoring // of samples, and may be ignored if you are just exploring the sample. // Flutter code sample for SnackBar // //*************************************************************************** //* ▼▼▼▼▼▼▼▼ description ▼▼▼▼▼▼▼▼ (do not modify or remove section marker) // Here is an example of a customized [SnackBar]. It utilizes // [behavior], [shape], [padding], [width], and [duration] to customize the // location, appearance, and the duration for which the [SnackBar] is visible. //* ▲▲▲▲▲▲▲▲ description ▲▲▲▲▲▲▲▲ (do not modify or remove section marker) //*************************************************************************** import 'package:flutter/material.dart'; void main() => runApp(const MyApp()); /// This is the main application widget. class MyApp extends StatelessWidget { const MyApp({Key? key}) : super(key: key); static const String _title = 'Flutter Code Sample'; @override Widget build(BuildContext context) { return MaterialApp( title: _title, home: Scaffold( appBar: AppBar(title: const Text(_title)), body: const Center( child: MyStatelessWidget(), ), ), ); } } /// This is the stateless widget that the main application instantiates. class MyStatelessWidget extends StatelessWidget { const MyStatelessWidget({Key? key}) : super(key: key); @override //******************************************************************** //* ▼▼▼▼▼▼▼▼ code ▼▼▼▼▼▼▼▼ (do not modify or remove section marker) Widget build(BuildContext context) { return ElevatedButton( child: const Text('Show Snackbar'), onPressed: () { ScaffoldMessenger.of(context).showSnackBar( SnackBar( action: SnackBarAction( label: 'Action', onPressed: () { // Code to execute. }, ), content: const Text('Awesome SnackBar!'), duration: const Duration(milliseconds: 1500), width: 280.0, // Width of the SnackBar. padding: const EdgeInsets.symmetric( horizontal: 8.0, // Inner padding for SnackBar content. ), behavior: SnackBarBehavior.floating, shape: RoundedRectangleBorder( borderRadius: BorderRadius.circular(10.0), ), ), ); }, ); } //* ▲▲▲▲▲▲▲▲ code ▲▲▲▲▲▲▲▲ (do not modify or remove section marker) //******************************************************************** }