forked from lxm_flutter/FlutterUnit
71 lines
2.1 KiB
Dart
71 lines
2.1 KiB
Dart
import 'package:flutter/material.dart';
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/// create by 张风捷特烈 on 2020/7/22
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/// contact me by email 1981462002@qq.com
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/// 说明: 330 PopupMenuTheme 主要用于为后代的PopupMenuButton组件统一设置默认属性,也可以通过该组件获取默认PopupMenu的属性。
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// {
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// "widgetId": 330,
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// "name": "PopupMenuTheme基本使用",
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// "priority": 1,
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// "subtitle": "可指定PopupMenuThemeData数据属性为【后代】的PopupMenuButton组件设置默认样式，如形状、影深、颜色、文字样式等。也可以用PopupMenuTheme.of获取PopupMenu的主题数据。",
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// }
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class PopupMenuThemeDemo extends StatelessWidget {
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@override
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Widget build(BuildContext context) {
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return PopupMenuTheme(
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data: PopupMenuTheme.of(context).copyWith(
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color: Colors.orangeAccent,
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elevation: 1,
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textStyle: TextStyle(color: Colors.white),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.only(
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topLeft: Radius.circular(20),
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bottomRight: Radius.circular(20),
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topRight: Radius.circular(5),
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bottomLeft: Radius.circular(5),
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)),
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),
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child: _PopupMenuButtonSimple(),
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);
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}
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}
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class _PopupMenuButtonSimple extends StatefulWidget {
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@override
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_PopupMenuButtonSimpleState createState() => _PopupMenuButtonSimpleState();
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}
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class _PopupMenuButtonSimpleState extends State<_PopupMenuButtonSimple> {
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final map = {
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"关于": Icons.info_outline,
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"帮助": Icons.help_outline,
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"反馈": Icons.add_comment,
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};
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@override
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Widget build(BuildContext context) {
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return PopupMenuButton<String>(
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itemBuilder: (context) => buildItems(),
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offset: Offset(0, 50),
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onSelected: print,
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onCanceled: () => print('onCanceled'),
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);
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}
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List<PopupMenuItem<String>> buildItems() {
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return map.keys
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.toList()
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.map((e) => PopupMenuItem<String>(
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value: e,
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child: Wrap(
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spacing: 6,
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children: <Widget>[
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Icon(
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map[e],
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),
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Text(e),
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],
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)))
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.toList();
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}
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} |