OpenMediacenterMobileFlutter/lib/app.dart

import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:logger/logger.dart';
import 'package:openmediacentermobile/login_screen.dart';
import 'package:openmediacentermobile/token.dart';

import 'video_feed.dart';

class App extends StatefulWidget {
  App({Key? key}) : super(key: key) {}

  @override
  State<StatefulWidget> createState() {
    return AppState();
  }
}

class AppState extends State<App> {
  String? loggedin = null;

  onLogin() {
    setState(() {
      loggedin = "ddd";
    });
  }

  @override
  Widget build(BuildContext context) {
    if (loggedin == null) {
      return const CircularProgressIndicator();
    } else if (loggedin == "") {
      return MaterialApp(
          home: Scaffold(
              appBar: AppBar(
                title: const Text("Login"),
              ),
              body: LoginScreen(onLogin: onLogin)));
    } else {
      return MaterialApp(
          home: Scaffold(
              appBar: AppBar(
                title: const Text("Openmediacenter"),
              ),
              body: VideoFeed()));
    }
  }

  AppState() {
    final token = Token.getInstance();
    token.getToken().then((value) {
      Logger().i("The token value is $value");
      setState(() {
        loggedin = value;
      });
    });
  }
}