OpenMediacenterMobileFlutter/lib/login_screen.dart

import 'package:flutter/material.dart';

import 'logincontext.dart';

class LoginScreen extends StatefulWidget {
  const LoginScreen({Key? key, this.onLogin}) : super(key: key);

  final onLogin;

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

class _LoginScreenState extends State<LoginScreen> {
  @override
  Widget build(BuildContext context) {
    return ElevatedButton(
        onPressed: () {
          LoginContext.of(context).onLoggin(true);
        },
        child: Text("klick meee"));
  }
}