public static void Init(ContextWrapper context) { MessagingCenter.Subscribe <StartLongRunningTask>(context, nameof(StartLongRunningTask), message => { var intent = new Intent(context, typeof(BackgroundService)); context.StartService(intent); }); MessagingCenter.Subscribe <StopLongRunningTask>(context, nameof(StopLongRunningTask), message => { var intent = new Intent(context, typeof(BackgroundService)); context.StopService(intent); }); }