How To Use Radio Button In Flutter Popup Menu Button

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: MyHomePage(),
    );
  }
}
class MyHomePage extends StatefulWidget {
  @override
  MyHomePageState createState() {
    return new MyHomePageState();
  }
}
class MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(
          backgroundColor: Colors.pink,
          title: Text("Radio In Popup Menu Button"),
        ),
        body: Center(
          child: PopupMenuButton(
            child: Text("Radio PopupMenuBotton"),
            itemBuilder: (context) => [
              PopupMenuItem(
                child: Row(
                  mainAxisAlignment: MainAxisAlignment.start,
                  mainAxisSize: MainAxisSize.min,
                  children: <Widget>[
                    Radio(
                      activeColor: Colors.pink,
                      groupValue: 1,
                      onChanged: (int i) {},
                      value: 1,
                    ),
                    Text("Android"),
                  ],
                ),
              ),
              PopupMenuItem(
                child: Row(
                  mainAxisAlignment: MainAxisAlignment.start,
                  mainAxisSize: MainAxisSize.min,
                  children: <Widget>[
                    Radio(
                      groupValue: 1,
                      onChanged: (int i) {},
                      value: 1,
                    ),
                    Text("Flutter"),
                  ],
                ),
              ),
              PopupMenuItem(
                child: Row(
                  mainAxisAlignment: MainAxisAlignment.start,
                  mainAxisSize: MainAxisSize.min,
                  children: <Widget>[
                    Radio(
                      groupValue: 1,
                      onChanged: (int i) {},
                      value: 1,
                    ),
                    Text("Dart"),
                  ],
                ),
              ),
            ],
          ),
        ));
  }
}