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d0664bcd79
Mostly tweaks for better focus management, namely: * Use `autofocus` throughout so the a11y focus is transferred to a logical place when overlaid content pops up (screen transitions, dialogs). * Consolidate "enabled" and "disabled" widgets into the same screen. Otherwise, when only a disabled widget is shown, there's nothing to focus on and the screen reader is lost.
62 lines
1.7 KiB
Dart
62 lines
1.7 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 'use_cases.dart';
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class DialogUseCase extends UseCase {
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@override
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String get name => 'Dialog';
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@override
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String get route => '/dialog';
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@override
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Widget build(BuildContext context) => const _MainWidget();
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}
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class _MainWidget extends StatelessWidget {
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const _MainWidget();
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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: const Text('Dialog'),
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),
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body: Center(
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child: TextButton(
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autofocus: true,
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onPressed: () => showDialog<String>(
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context: context,
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builder: (BuildContext context) => Dialog(
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child: Padding(
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padding: const EdgeInsets.all(8.0),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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mainAxisAlignment: MainAxisAlignment.center,
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children: <Widget>[
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const Text('This is a typical dialog.'),
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const SizedBox(height: 15),
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TextButton(
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autofocus: true,
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onPressed: () {
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Navigator.pop(context);
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},
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child: const Text('Close'),
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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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child: const Text('Show Dialog'),
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),
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),
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);
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}
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}
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