forked from lxm_flutter/FlutterUnit
75 lines
2.2 KiB
Dart
75 lines
2.2 KiB
Dart
import 'package:flutter/material.dart';
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/// create by 张风捷特烈 on 2020/9/21
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/// contact me by email 1981462002@qq.com
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/// 说明: 257 DrawerController 为 Drawer 组件提供交互行为，一般很少使用。在 Scaffold 组件源码中有使用场景。
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// {
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// "widgetId": 257,
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// "name": 'DrawerController基本使用',
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// "priority": 1,
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// "subtitle":
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// "【drawerCallback】 : 事件回调 【DrawerCallback】\n"
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// "【enableOpenDragGesture】 : 是否侧边滑开 【bool】\n"
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// "【alignment】 : 对齐方式 【DrawerAlignment】\n"
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// "【scrimColor】 : 背景颜色 【Color】\n"
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// "【child】 : Drawer组件 【Widget】",
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// }
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class DrawerControllerDemo extends StatefulWidget {
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const DrawerControllerDemo({Key? key}) : super(key: key);
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@override
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_DrawerControllerDemoState createState() => _DrawerControllerDemoState();
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}
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class _DrawerControllerDemoState extends State<DrawerControllerDemo> {
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final GlobalKey<DrawerControllerState> _drawerKey =
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GlobalKey<DrawerControllerState>();
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bool _open = false;
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@override
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Widget build(BuildContext context) {
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return Column(
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children: [
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ElevatedButton(
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onPressed: toggleDrawer,
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child: const Text("显隐 Drawer"),
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),
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SizedBox(
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height: 200,
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child: DrawerController(
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scrimColor: Colors.blue.withAlpha(88),
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enableOpenDragGesture: true,
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key: _drawerKey,
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alignment: DrawerAlignment.start,
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drawerCallback: (value) {
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_open = value;
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},
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child: Drawer(
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child: Container(
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alignment: Alignment.center,
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color: Colors.red,
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child: const Text(
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"I am Drawer!",
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style: TextStyle(color: Colors.white, fontSize: 18),
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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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void toggleDrawer() {
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if (_open) {
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_drawerKey.currentState?.close();
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} else {
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print('---open--$_open-------');
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_drawerKey.currentState?.open();
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}
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}
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}
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