Cancel notification on remove application from multitask panel

Question

I manage an ONGOING notification from my application (not from a service).

When I kill application from task manager with \"End\" button, no

Answer 1

I wanted to close all my App notifications,remove badge icons on Logout, removed from recent app list . so for

Xamarin.Android

start service at launcher activity(i am creating notification from here) as

Intent intent = new Intent(this, typeof(PushNotificationService));
this.StartService(intent);

where PushNotificationService is my Android service inside which i have

[Service]
    public class PushNotificationService : Service
        {
            public override IBinder OnBind(Intent intent)
            {
                return null;
            }

        public override void OnCreate()
        {
            base.OnCreate();
        }
        public override void OnTaskRemoved(Intent rootIntent)
        {
            try
            {
                var notificationManager = (NotificationManager)GetSystemService(NotificationService);
                notificationManager.Cancel(0);
                ME.Leolin.Shortcutbadger.ShortcutBadger.RemoveCount(Application.Context);
            }
            catch (System.Exception ex)
            {
            }
        }
    }

this line in OnTaskRemoved(Intent rootIntent) did the trick

 var notificationManager = (NotificationManager)GetSystemService(NotificationService);
                notificationManager.Cancel(0);

where 0 in notificationManager.Cancel(0); is the local notifcation id which we put at the time of building notification.