import 'package:flutter/material.dart'; import 'package:loc_chain_app/util/bluetooth.dart'; import 'package:shared_preferences/shared_preferences.dart'; import 'package:loc_chain_app/widgets/navbar.dart'; import 'package:flutter_udid/flutter_udid.dart'; void main() async { WidgetsFlutterBinding.ensureInitialized(); runApp(App()); (await SharedPreferences.getInstance()) .setString('userName', await FlutterUdid.consistentUdid); } class App extends StatelessWidget { // This widget is the root of your application. @override Widget build(BuildContext context) { Connect.start(); return MaterialApp( title: 'Loc-Chain', theme: ThemeData( primarySwatch: Colors.lightBlue, ), home: NavBarWidget(), ); } }