title: Silent notifications in Background Mode on force-quit apps
body: <p>My problem is: I just can't make silent notifications work when a user has force-quit(swiped away) the app!</p>
  
  <p>I guess <strong>the following is a fact:</strong> A silent push (with <code>content-available:1</code>) will NOT trigger <code>application(_:didReceiveRemoteNotification:fetchCompletionHandler:)</code> nor any other method (it will NOT launch the app) if the application was force-quit (swiped away) by the user! Can anyone prove this wrong?</p>
  
  <p>I have made sure I've enabled <strong>Background Mode:</strong> <strong>Remote Notifications</strong>.</p>
  
  <p>But what if non-silent notifications don't work for me? I need silent ones, I need to be able to run some checks before I show it! What If I want to check if the right user is logged on to my application after I receive a notification from remote server? (since I can't guarantee that when he logged out he successfully let the server know about it, so I assume the server doesn't know for sure)</p>
  
  <p>What would be the right approach to take in my situation?</p>
  
  <p>There are many questions about similar things, but not many people involved, I wonder why? I don't believe that I have such a rare case. Maybe my basic approach to solving this kind of problem is wrong? It doesn't seem to be a problem on Android platform at all!</p>
  
  <p>I am using FCM as central point of sending out notifications, so if you say that PushKit can solve my problems, too bad that FCM doesn't support VoIP certificates. But, I wonder, can PushKit really solve this? Or Apple just designed it this way that when a user force-quit an app, it means that this app must shut up altogether with its ability to push remote notifications?!</p>
  
  <p>I don't consider this a duplicate of <a href="https://stackoverflow.com/questions/50241353/firebase-silent-notification-does-not-start-up-a-closed-ios-app">Firebase silent notification does not start up a closed iOS app</a> because what I am asking here is what would be the solution if you want to check if the user to whom the notification is addressed for corresponds to the user logged in to the application? It can be considered duplicate if it turns out that there is absolutely no solution for this on iOS platform.</p>