forked from flutter/flutter
-
Notifications
You must be signed in to change notification settings - Fork 0
/
layout_builder.0.dart
73 lines (63 loc) · 1.64 KB
/
layout_builder.0.dart
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
// 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.
// Flutter code sample for [LayoutBuilder].
import 'package:flutter/material.dart';
void main() => runApp(const MyApp());
class MyApp extends StatelessWidget {
const MyApp({super.key});
static const String _title = 'Flutter Code Sample';
@override
Widget build(BuildContext context) {
return const MaterialApp(
title: _title,
home: MyStatelessWidget(),
);
}
}
class MyStatelessWidget extends StatelessWidget {
const MyStatelessWidget({super.key});
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: const Text('LayoutBuilder Example')),
body: LayoutBuilder(
builder: (BuildContext context, BoxConstraints constraints) {
if (constraints.maxWidth > 600) {
return _buildWideContainers();
} else {
return _buildNormalContainer();
}
},
),
);
}
Widget _buildNormalContainer() {
return Center(
child: Container(
height: 100.0,
width: 100.0,
color: Colors.red,
),
);
}
Widget _buildWideContainers() {
return Center(
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
Container(
height: 100.0,
width: 100.0,
color: Colors.red,
),
Container(
height: 100.0,
width: 100.0,
color: Colors.yellow,
),
],
),
);
}
}