flutter AppBar에서 햄버거 메뉴 onPressed로 열기

흔히 부르는 햄버거 메뉴를 눌렀을 때 이벤트 감지를 알려주는 강좌를 보고 따라 했음에도 햄버거 메뉴가 동작 자체를 안하는 문제를 발견했다.
        leading: IconButton(
          icon: Icon(Icons.menu),
          onPressed: () {
            print("Menu Call!!!!");
          },
        ),
강좌에서 동작했던 코드인데
아래처럼 해야만 동작했다.
        leading: Builder(
          builder: (context) => IconButton(
            icon: new Icon(Icons.settings),
            onPressed: () => Scaffold.of(context).openDrawer(),
          ),
        ),

그새 구글이 구글했나보다.
작작 좀 바꿔라.

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  //const MyApp({super.key});
  final appTitle = 'Drawer Demo';
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: appTitle,
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        primarySwatch: Colors.red,
      ),
      home: Home(),
    );
  }
}

class Home extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        leading: Builder(
          builder: (context) => IconButton(
            icon: new Icon(Icons.settings),
            onPressed: () => Scaffold.of(context).openDrawer(),
          ),
        ),
        title: Text('Drawer'),
        elevation: 0.0,
        centerTitle: true,
        actions: [
          IconButton(
            icon: const Icon(Icons.shopping_cart),
            onPressed: () {
              print("AA2222");
            },
          ),
          IconButton(
            icon: const Icon(Icons.search),
            onPressed: () {},
          ),
        ],
      ),
      body: Center(child: Text('My Page!')),
      drawer: Drawer(
        child: ListView(
          padding: EdgeInsets.zero,
          children: [
            // DrawerHeader(
            //   child: Text('Drawer Header'),
            //   decoration: BoxDecoration(
            //     color: Colors.blue,
            //   ),
            // ),
            UserAccountsDrawerHeader(
              currentAccountPicture: CircleAvatar(
                backgroundImage: AssetImage('assets/0001.gif'),
              ),
              otherAccountsPictures: [
                CircleAvatar(
                  backgroundImage: AssetImage('assets/0002.png'),
                )
              ],
              accountEmail: Text('dev.yakkuza@gmail.com'),
              accountName: Text('Dev Yakuza'),
              onDetailsPressed: () {
                print('press details');
              },
              decoration: BoxDecoration(
                  color: Colors.blue[300],
                  borderRadius: BorderRadius.only(
                    bottomLeft: Radius.circular(40),
                    bottomRight: Radius.circular(40),
                  )),
            ),
            ListTile(
              title: Text('Item 1'),
              onTap: () {
                Navigator.pop(context);
              },
            ),
            ListTile(
              title: Text('Item 2'),
              onTap: () {
                Navigator.pop(context);
              },
            ),
          ],
        ),
      ),
    );
  }
}