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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, |
), |
], |
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