At work I have to modify an existing Application to differentiate incoming push notifications by the language of the news. 

In Android I found a way to not send the push notification. So I could easily check for the language and only send the right one. 

In iOS it seems a little different. (I'm not the Author of the existing code, so maybe I have overlooked something.) 

But I can't find any function where I could intercept the incoming message. 

I tried functions like `UNUserNotificationCenter.Current.RemoveAllPendingNotificationRequests();`
and 
`UIApplication.SharedApplication.CancelAllLocalNotifications();`

But without any success... maybe I put them into the wrong place. 

Thanks for hints and help