import 'package:flutter/material.dart';
//import 'package:flutter/semantics.dart';
void main() => runApp(new MyApp());
class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'MiniTestIII',
      home: Scaffold(
        appBar: AppBar(
            title: (Center(
          child: new Text("Add or Remove"),
        ))),
        body: Text(""),
        //  leading: IconButton(ico)
        floatingActionButton: FloatingActionButton(
          child: Icon(Icons.add),
          onPressed: () {
            showModalBottomSheet(
                context: context,
                builder: (context) {
                  return Column(
                    mainAxisSize: MainAxisSize.min,
                    children: <Widget>[
                      ListTile(
                        //leading: new Icon(Icons.photo),
                        title: new Text('Add'),
                        onTap: () //=>_selecitem('Add'),
                            {
                          // SetSelected('Add');
                          Navigator.pop(context);
                        },
                      ),
                      ListTile(
                        // leading: new Icon(Icons.photo),
                        title: new Text('Remove'),
                        onTap: () {
                          // setContinent(selected)
                          Navigator.pop(context);
                        },
                      ),
                    ],
                  );
                });
          },
          // tooltip: 'Increment',
          //tooltip: 'Increment',
        ),
      ),
      theme: ThemeData(primarySwatch: Colors.green),
    );
  }
}