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40 lines
1.1 KiB
Dart
40 lines
1.1 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter/widgets.dart';
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/*
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* Author: xiaojia.dxj
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* Date: 2018/11/22
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* Email: xiaojia.dxj@alibaba-inc.com
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* LastUpdateTime: 2018/11/22
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* LastUpdateBy: xj.deng
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*
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* Describle:Align描述
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*/
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class ConstracubedBox extends StatelessWidget {
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@override
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Widget build(BuildContext context) {
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return Column(
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children: <Widget>[
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ConstrainedBox(
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//制定一个指定大小的盒子，限定最大最小宽高
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constraints: const BoxConstraints(
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minWidth: 100.0,
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minHeight: 20.0,
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maxWidth: 500.0,
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maxHeight: 50.0,
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),
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child: new Container(
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margin: const EdgeInsets.only(left: 20.0, right: 20.0),
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//child 宽高超过制定限制范围失效，效果宽/高=100/20区域
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width: 600.0,
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height: 250.0,
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child: new Text('ConstrainedBox',style: TextStyle(color: Colors.white),),
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color: Colors.red,
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),
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),
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],
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);
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}
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} |