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interactivity tutorial.
<topic_end>
<topic_start>Lists & grids
<topic_end>
<topic_start>
Topics
<topic_end>
<topic_start>Use lists
Displaying lists of data is a fundamental pattern for mobile apps.
Flutter includes the ListView
widget to make working with lists a breeze.<topic_end>
<topic_start>
Create a ListView
Using the standard ListView constructor is
perfect for lists that contain only a few items.
The built-in ListTile
widget is a way to give items a visual structure.
<code_start>ListView(
children: const <Widget>[
ListTile(
leading: Icon(Icons.map),
title: Text('Map'),
),
ListTile(
leading: Icon(Icons.photo_album),
title: Text('Album'),
),
ListTile(
leading: Icon(Icons.phone),
title: Text('Phone'),
),
],
),<code_end>
<topic_end>
<topic_start>
Interactive example
<code_start>import 'package:flutter/material.dart';
void main() => runApp(const MyApp());
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
const title = 'Basic List';
return MaterialApp(
title: title,
home: Scaffold(
appBar: AppBar(
title: const Text(title),
),
body: ListView(
children: const <Widget>[
ListTile(
leading: Icon(Icons.map),
title: Text('Map'),
),
ListTile(
leading: Icon(Icons.photo_album),
title: Text('Album'),
),
ListTile(
leading: Icon(Icons.phone),
title: Text('Phone'),
),
],
),
),
);
}
}<code_end>
<topic_end>
<topic_start>Create a horizontal list
You might want to create a list that scrolls
horizontally rather than vertically.
The ListView widget supports horizontal lists.Use the standard ListView constructor, passing in a horizontal
scrollDirection, which overrides the default vertical direction.
<code_start>ListView(
// This next line does the trick.
scrollDirection: Axis.horizontal,
children: <Widget>[
Container(
width: 160,
color: Colors.red,
),
Container(
width: 160,
color: Colors.blue,
),
Container(
width: 160,
color: Colors.green,
),
Container(
width: 160,
color: Colors.yellow,
),
Container(
width: 160,
color: Colors.orange,
),
],