GiteaClient/lib/widget/login_status.dart

import 'package:flutter/material.dart';

import '../model/ApiAccess.dart';
import '../model/user.dart';
import '../service/AuthenticationChecker.dart';

class StatefulLoginStatus extends StatefulWidget {
  final ApiAccess apiAccess;
  const StatefulLoginStatus({Key? key, required this.apiAccess}) : super(key: key);

  @override
  _StatefulLoginStatus createState() => _StatefulLoginStatus();
}

class _StatefulLoginStatus extends State<StatefulLoginStatus> {


  Future<AuthenticatedUser>? userRequest;

  @override
  void initState() {
    userRequest = AuthenticationChecker(widget.apiAccess).getAuthenticatedUserOrError();
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(
          title: const Text("Login status"),
        ),
        body: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            crossAxisAlignment: CrossAxisAlignment.center,
            children:  [
              FutureBuilder<AuthenticatedUser>(
                  future: userRequest,
                  builder: (context, snapshot) {
                    if (snapshot.hasError){
                      return Center(
                        child: Text(
                            "Hiba történt: ${snapshot.error}"
                        ),
                      );
                    } else if (snapshot.hasData){
                      var user = snapshot.data!;
                      final username = user.username;
                      return Text("Logged in as $username");

                    } else {
                      return Center(
                        child: CircularProgressIndicator(),
                      );
                    }
                  }
              )
            ],
          ),
        ));
  }
}