This is my main. I want to check if user is logged in then I want to go to home directly, if not go to sign in. I also have a splash screen, so I want to show it if the app is run for the first time. Im trying to implement but nothing goes right.

Future<void> main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp();

  Widget firstWidget;
  User? firebaseUser = FirebaseAuth.instance.currentUser;
  
  if (firebaseUser != null) {
    firstWidget = const HomeScreen();
  } else {
    firstWidget = const SplashScreen();
  }
  
  runApp(const MyApp());
}


class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);
  

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'Fema App',
      theme: theme(),
       home: firstWidget, //I tried to call first widget but I can't
      // We use routeName so that we dont need to remember the name
      //initialRoute: LoadPage.routeName,
      //initialRoute: HomeScreen.routeName,
      routes: routes,
    );
  }
}

CodePudding user response：

Use NetworkImage('${user!.photoURL}'). A network image will need a string value. Your code was trying to assign a value that can be null also. Now if you add it inside a string if user is null you still have an empty string.