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5fad2bea2a
Adds usage of SystemChrome.setAPplicationSwitcherDescription to update the page title for the AutoComplete demo page. [Before screenshot: example AutoComplete](https://screenshot.googleplex.com/8DpESj4QrQA2YrW) [After screenshot: example AutoComplete](https://screenshot.googleplex.com/6AdfSA8a8VwUaXM) Fixes b/338056490 *Replace this paragraph with a description of what this PR is changing or adding, and why. Consider including before/after screenshots.* *List which issues are fixed by this PR. You must list at least one issue. An issue is not required if the PR fixes something trivial like a typo.* *If you had to change anything in the [flutter/tests] repo, include a link to the migration guide as per the [breaking change policy].*
76 lines
2.3 KiB
Dart
76 lines
2.3 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/material.dart';
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import '../utils.dart';
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import 'use_cases.dart';
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class ExpansionTileUseCase extends UseCase {
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@override
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String get name => 'ExpansionTile';
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@override
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String get route => '/expansion-tile';
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@override
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Widget build(BuildContext context) => const ExpansionTileExample();
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}
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class ExpansionTileExample extends StatefulWidget {
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const ExpansionTileExample({super.key});
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@override
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State<ExpansionTileExample> createState() => _ExpansionTileExampleState();
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}
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class _ExpansionTileExampleState extends State<ExpansionTileExample> {
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bool _customTileExpanded = false;
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String pageTitle = getUseCaseName(ExpansionTileUseCase());
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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backgroundColor: Theme.of(context).colorScheme.inversePrimary,
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title: Semantics(headingLevel: 1, child: Text('$pageTitle Demo')),
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),
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body: Column(
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children: <Widget>[
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const ExpansionTile(
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title: Text('ExpansionTile 1'),
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subtitle: Text('Trailing expansion arrow icon'),
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children: <Widget>[
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ListTile(title: Text('This is tile number 1')),
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],
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),
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ExpansionTile(
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title: const Text('ExpansionTile 2'),
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subtitle: const Text('Custom expansion arrow icon'),
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trailing: Icon(
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_customTileExpanded ? Icons.arrow_drop_down_circle : Icons.arrow_drop_down,
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),
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children: const <Widget>[
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ListTile(title: Text('This is tile number 2')),
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],
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onExpansionChanged: (bool expanded) {
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setState(() {
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_customTileExpanded = expanded;
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});
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},
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),
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const ExpansionTile(
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title: Text('ExpansionTile 3'),
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subtitle: Text('Leading expansion arrow icon'),
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controlAffinity: ListTileControlAffinity.leading,
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children: <Widget>[
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ListTile(title: Text('This is tile number 3')),
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],
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),
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],
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),
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);
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}
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}
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