// 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 OverflowBar // //*************************************************************************** //* ▼▼▼▼▼▼▼▼ description ▼▼▼▼▼▼▼▼ (do not modify or remove section marker) // This example defines a simple approximation of a dialog // layout, where the layout of the dialog's action buttons are // defined by an [OverflowBar]. The content is wrapped in a // [SingleChildScrollView], so that if overflow occurs, the // action buttons will still be accessible by scrolling, // no matter how much vertical space is available. //* ▲▲▲▲▲▲▲▲ 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 Container( alignment: Alignment.center, padding: const EdgeInsets.all(16), color: Colors.black.withOpacity(0.15), child: Material( color: Colors.white, elevation: 24, shape: const RoundedRectangleBorder( borderRadius: BorderRadius.all(Radius.circular(4))), child: Padding( padding: const EdgeInsets.all(8), child: SingleChildScrollView( child: Column( mainAxisSize: MainAxisSize.min, crossAxisAlignment: CrossAxisAlignment.stretch, children: [ const SizedBox(height: 128, child: Placeholder()), Align( alignment: AlignmentDirectional.centerEnd, child: OverflowBar( spacing: 8, overflowAlignment: OverflowBarAlignment.end, children: [ TextButton(child: const Text('Cancel'), onPressed: () {}), TextButton( child: const Text('Really Really Cancel'), onPressed: () {}), OutlinedButton(child: const Text('OK'), onPressed: () {}), ], ), ), ], ), ), ), ), ); } //* ▲▲▲▲▲▲▲▲ code ▲▲▲▲▲▲▲▲ (do not modify or remove section marker) //******************************************************************** }