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// 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';
/// Flutter code sample for [ListTile].
void main() => runApp(const ListTileApp());
class ListTileApp extends StatelessWidget {
const ListTileApp({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
theme: ThemeData(useMaterial3: true),
home: const ListTileExample(),
);
}
}
class ListTileExample extends StatefulWidget {
const ListTileExample({super.key});
@override
State<ListTileExample> createState() => _ListTileExampleState();
}
class _ListTileExampleState extends State<ListTileExample> {
ListTileTitleAlignment? titleAlignment;
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: const Text('ListTile.titleAlignment Sample')),
body: Column(
children: <Widget>[
const Divider(),
ListTile(
titleAlignment: titleAlignment,
leading: Checkbox(
value: true,
onChanged: (bool? value) {},
),
title: const Text('Headline Text'),
subtitle: const Text(
'Tapping on the trailing widget will show a menu that allows you to change the title alignment. The title alignment is set to threeLine by default if `ThemeData.useMaterial3` is true. Otherwise, defaults to titleHeight.'),
trailing: PopupMenuButton<ListTileTitleAlignment>(
onSelected: (ListTileTitleAlignment? value) {
setState(() {
titleAlignment = value;
});
},
itemBuilder: (BuildContext context) => <PopupMenuEntry<ListTileTitleAlignment>>[
const PopupMenuItem<ListTileTitleAlignment>(
value: ListTileTitleAlignment.threeLine,
child: Text('threeLine'),
),
const PopupMenuItem<ListTileTitleAlignment>(
value: ListTileTitleAlignment.titleHeight,
child: Text('titleHeight'),
),
const PopupMenuItem<ListTileTitleAlignment>(
value: ListTileTitleAlignment.top,
child: Text('top'),
),
const PopupMenuItem<ListTileTitleAlignment>(
value: ListTileTitleAlignment.center,
child: Text('center'),
),
const PopupMenuItem<ListTileTitleAlignment>(
value: ListTileTitleAlignment.bottom,
child: Text('bottom'),
),
],
),
),
const Divider(),
],
),
);
}
}