import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    List<Choice> choices = <Choice>[
      Choice(title: "Menu 1", icon: Icons.reorder),
    ];

    return Scaffold(
        body: Scaffold(
      bottomNavigationBar: BottomAppBar(
          color: Colors.red,
          child: Row(
            mainAxisAlignment: MainAxisAlignment.end,
            children: <Widget>[
              PopupMenuButton<Choice>(
                icon: Icon(
                  Icons.more_vert,
                  color: Colors.white,
                ),
                itemBuilder: (BuildContext context) {
                  return choices.map((Choice choice) {
                    return PopupMenuItem<Choice>(
                      value: choice,
                      child: Text(choice.title),
                    );
                  }).toList();
                },
              ),
            ],
          )),
      body: Center(
        child: TextFormField(
          decoration: InputDecoration(labelText: "TFF1"),
        ),
      ),
    ));
  }
}

class Choice {
  const Choice({this.title, this.icon});

  final String title;
  final IconData icon;
}