How To Add Right Drawer Using Flutter Android App

import 'package:flutter/material.dart';

void main() => runApp(new MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'Flutter Demo',
      theme: new ThemeData(
        primarySwatch: Colors.deepOrange,
      ),
      home: new MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => new _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  var _scaffoldKey = new GlobalKey<ScaffoldState>();
  @override
  Widget build(BuildContext context) {
    return new Scaffold(
      key: _scaffoldKey,
      endDrawer: new AppDrawer(),
      appBar: new AppBar(
        title: new Text("Right Drawer"),
      ),
      body: new ListView(
        children: <Widget>[
          new ListTile(
            title: new Text("Body"),
          ),
        ],
      ),
    );
  }
}


class AppDrawer extends StatefulWidget {
  @override
  _AppDrawerState createState() => new _AppDrawerState();
}

class _AppDrawerState extends State<AppDrawer> {
  @override
  Widget build(BuildContext context) {
    return Container(
      width: 200,
      child: new Drawer(
        child: Column(children: <Widget>[
          DrawerHeader(
          decoration: BoxDecoration(
            color: Colors.orange[700],
          )),
          Expanded(
          child: ListView(
            padding: EdgeInsets.zero,
            children: <Widget>[
              ListTile(
                title: Text('My Cart'),
                leading: Icon(Icons.shopping_cart),
                onTap: () {},
              ),
              ListTile(
                title: Text('My Orders'),
                leading: Icon(Icons.add_shopping_cart),
                onTap: () {},
              ),
              ListTile(
                  title: Text('Logout'),
                  leading: Icon(Icons.exit_to_app),
                  onTap: () {})
            ],
          )),
      ]
    ),
      )
    );
  }
}