forked from lxm_flutter/FlutterUnit
62 lines
1.5 KiB
Dart
62 lines
1.5 KiB
Dart
import 'package:flutter/material.dart';
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/// create by 张风捷特烈 on 2020-03-26
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/// contact me by email 1981462002@qq.com
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/// 说明:
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// {
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// "widgetId": 161,
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// "name": 'IndexedStack基本使用',
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// "priority":1 ,
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// "subtitle":
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// "【children】 : 子组件列表 【Lis<Widget>】\n"
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// "【alignment】 : 对齐方式 【AlignmentGeometry】\n"
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// "【index】 : 当前显示组件 【int】",
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// }
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class CustomIndexedStack extends StatefulWidget {
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@override
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_CustomIndexedStackState createState() => _CustomIndexedStackState();
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}
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class _CustomIndexedStackState extends State<CustomIndexedStack> {
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var _index = 1;
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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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_buildSwitch(),
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Container(
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width: 200,
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height: 100,
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color: Colors.grey.withAlpha(33),
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child: IndexedStack(
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index: _index,
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children: <Widget>[
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Container(
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color: Colors.red,
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width: 80,
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height: 80,
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),
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Positioned(
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bottom: 10,
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right: 10,
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child: Container(
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color: Colors.blue,
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width: 80,
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height: 80,
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),
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)
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],
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),
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),
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],
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);
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}
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Widget _buildSwitch() => Switch(
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value: _index == 0,
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onChanged: (v) => setState(() => _index = v ? 0 : 1),
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);
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}
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