✨ 添加组件 AnnotatedRegion、CheckedModeBanner、CupertinoTabView、CupertinoTextSelectionToolbar、DefaultTabController、DraggableScrollableActuator、DraggableScrollableSheet、DrawerController、GlowingOverscrollIndicator、 MergeableMaterial、SizeChangedLayoutNotifier、SliverLayoutBuilder、TableCell

lib/views/widgets/StatefulWidget/DrawerController/node1_base.dart

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+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+
+
+/// create by 张风捷特烈 on 2020/9/21
+/// contact me by email 1981462002@qq.com
+/// 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。
+//    {
+//      "widgetId": 257,
+//      "name": 'DrawerController基本使用',
+//      "priority": 1,
+//      "subtitle":
+//          "【drawerCallback】 : 事件回调   【DrawerCallback】\n"
+//          "【enableOpenDragGesture】 : 是否侧边滑开   【bool】\n"
+//          "【alignment】 : 对齐方式   【DrawerAlignment】\n"
+//          "【scrimColor】 : 背景颜色   【Color】\n"
+//          "【child】 : Drawer组件   【Widget】",
+//    }
+
+class DrawerControllerDemo extends StatefulWidget {
+  @override
+  _DrawerControllerDemoState createState() => _DrawerControllerDemoState();
+}
+
+class _DrawerControllerDemoState extends State<DrawerControllerDemo> {
+  final GlobalKey<DrawerControllerState> _drawerKey =
+      GlobalKey<DrawerControllerState>();
+
+  bool _open = false;
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      child: Column(
+        children: [
+          ElevatedButton(
+            onPressed: toggleDrawer,
+            child: Text("显隐 Drawer"),
+          ),
+          Container(
+            height: 200,
+            child: DrawerController(
+              scrimColor: Colors.blue.withAlpha(88),
+              enableOpenDragGesture: true,
+              key: _drawerKey,
+              alignment: DrawerAlignment.start,
+              drawerCallback: (value) {
+                _open = value;
+              },
+              child: Drawer(
+                child: Container(
+                  alignment: Alignment.center,
+                  color: Colors.red,
+                  child: Text(
+                    "I am Drawer!",
+                    style: TextStyle(color: Colors.white, fontSize: 18),
+                  ),
+                ),
+              ),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  void toggleDrawer() {
+    if (_open) {
+      _drawerKey.currentState?.close();
+    } else {
+      print('---open--$_open-------');
+      _drawerKey.currentState?.open();
+    }
+  }
+}