Refactoring

lib/main.dart

@@ -18,6 +18,7 @@ import 'package:stadtbote/tools/connection_status.dart';
 import 'package:stadtbote/tools/message_service.dart';
 import 'package:stadtbote/tools/messages/job_received_message.dart';
 import 'package:stadtbote/tools/messages/refresh_badges_message.dart';
+import 'package:stadtbote/tools/mqtt_core.dart';
 
 import 'content_views/main_page.dart';
 import 'content_views/utils/content_view_widget.dart';
@@ -66,26 +67,13 @@ class MyApp extends StatefulWidget {
   State<MyApp> createState() => _MyAppState();
 }
 
-class _MyAppState extends State<MyApp> with WidgetsBindingObserver {
-  @override
-  void initState() {
-    WidgetsBinding.instance.addObserver(this);
+class _MyAppState extends State<MyApp> {
+  final MqttCore mqttCore = MqttCore();
+
+  @override void initState() {
+    super.initState();
 
     _startLocationService();
-
-    super.initState();
-  }
-
-  @override
-  void dispose() {
-    WidgetsBinding.instance.removeObserver(this);
-    super.dispose();
-  }
-
-  @override
-  void didChangeAppLifecycleState(AppLifecycleState state) async {
-    super.didChangeAppLifecycleState(state);
-    Util.logInfo('Lifecylcle changes: $state');
   }
 
   @override