| // 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. |
| |
| import 'package:flutter/material.dart'; |
| |
| import '../../gallery/demo.dart'; |
| |
| class ExpansionTileListDemo extends StatelessWidget { |
| const ExpansionTileListDemo({super.key}); |
| |
| static const String routeName = '/material/expansion-tile-list'; |
| |
| @override |
| Widget build(BuildContext context) { |
| return Scaffold( |
| appBar: AppBar( |
| title: const Text('Expand/collapse list control'), |
| actions: <Widget>[MaterialDemoDocumentationButton(routeName)], |
| ), |
| body: Scrollbar( |
| child: ListView( |
| children: <Widget>[ |
| const ListTile(title: Text('Top')), |
| ExpansionTile( |
| title: const Text('Sublist'), |
| backgroundColor: Theme.of(context).colorScheme.secondary.withOpacity(0.025), |
| children: const <Widget>[ |
| ListTile(title: Text('One')), |
| ListTile(title: Text('Two')), |
| // https://en.wikipedia.org/wiki/Free_Four |
| ListTile(title: Text('Free')), |
| ListTile(title: Text('Four')), |
| ], |
| ), |
| const ListTile(title: Text('Bottom')), |
| ], |
| ), |
| ), |
| ); |
| } |
| } |