import 'package:flutter/material.dart'; import 'package:country_code_picker/country_code_picker.dart'; void main() => runApp(new MyApp()); class MyApp extends StatefulWidget { @override _MyAppState createState() => new _MyAppState(); } class _MyAppState extends State { @override void initState() { super.initState(); } @override Widget build(BuildContext context) { return new MaterialApp( home: new Scaffold( appBar: new AppBar( title: const Text('CountryPicker Example'), ), body: new Center( child: new CountryCodePicker( onChanged: print, // Initial selection and favorite can be one of code ('IT') OR dial_code('+39') initialSelection: 'IT', // showCountryOnly: true, favorite: ['+39', 'FR']), ))); } }