mirror of
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98 lines
3.2 KiB
Dart
98 lines
3.2 KiB
Dart
import 'package:flutter/material.dart';
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import '../../../../../common/widget_demo.dart';
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import './demo.dart';
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const String Text0 = """### **简介**
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> Row 是一个将其child显示在水平数组的小部件
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- 将其child填充可用的横向水平空间，一行高度是childs的最大高度（即：总是满足传入的垂直约束）
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- 如果你只有一个child，只需要考虑使用对其或者中间位置，如果多个child，注意扩展水平空间(Expanded)，可以将child封装在一个扩展部件里面
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- 当我们看到行有黄色和黑色条纹警告时候，说明行已经溢出，当行溢出，行之间当空间将没有任何空间可供扩展。
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""";
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const String Text1 = """
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### **基本用法**
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> 水平布局，设置位置对齐方式
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mainAxisSize 属性
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- 一行的高度是有mainAxisSize属性控制，默认是max
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mainAxisAlignment属性
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- 将children放置在主轴某位置
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CrossAxisAlignment 属性
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- crossAxisAlignment: crossAxisAlignment.center/end/start,
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- 即，根据设定的位置交叉对齐
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""";
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class Demo extends StatefulWidget {
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static const String routeName = '/element/Frame/Layout/Row';
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@override
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State<StatefulWidget> createState() => _DemoState();
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}
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class _DemoState extends State<Demo> {
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@override
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Widget build(BuildContext context) {
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return WidgetDemo(
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title: 'Row',
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// desc: 'Layout-Row 使用',
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codeUrl: 'elements/Frame/Layout/Row/demo.dart',
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docUrl: 'https://docs.flutter.io/flutter/widgets/Row-class.html',
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contentList: [
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Text0,
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Text1,
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_RowCreate(),
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],
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);
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}
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Column _RowCreate() {
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return new Column(
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children: <Widget>[
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RowLayout(),
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Row(
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children: <Widget>[
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Expanded(
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child:
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Text('Deliver features faster', textAlign: TextAlign.center),
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),
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Expanded(
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child: Text('Craft beautiful UIs', textAlign: TextAlign.center),
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),
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Expanded(
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child: FittedBox(
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fit: BoxFit.contain, // otherwise the logo will be tiny
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child: const FlutterLogo(),
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),
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),
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],
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),
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Row(
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children: <Widget>[
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const FlutterLogo(),
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const Expanded(
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child: const Text(
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'Flutter\'s hot reload helps you quickly and easily experiment, build UIs, add features, and fix bug faster. Experience sub-second reload times, without losing state, on emulators, simulators, and hardware for iOS and Android.'),
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),
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const Icon(Icons.sentiment_very_satisfied),
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],
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),
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SizedBox(height: 30.0),
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RowMainAxisAlignment(MainAxisAlignment.spaceEvenly, null),
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SizedBox(height: 10.0),
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RowMainAxisAlignment(MainAxisAlignment.spaceAround, null),
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SizedBox(height: 10.0),
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RowMainAxisAlignment(MainAxisAlignment.spaceBetween, null),
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SizedBox(height: 30.0),
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RowMainAxisAlignment(MainAxisAlignment.start, null),
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SizedBox(height: 10.0),
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RowMainAxisAlignment(MainAxisAlignment.center, null),
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SizedBox(height: 10.0),
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RowMainAxisAlignment(MainAxisAlignment.end, null),
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],
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);
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}
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}
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