iOS push notification: how to detect if the user tapped on notification when the app is in background?

Question

There are a lot of stackoverflow threads regarding this topic, but I still didn\'t find a good solution.

If the app is not in the background, I can check launc

Answer 1

Solved with Deployent target change, after lots of trial and error.

I was experiencing the same issue with iOS Deployment Target 9.0 and 10.0, XCode Version 11.6 (11E708). - did not get any delegate method calls from tapping the notification when the app is in background.

What solved this was changing the Target to iOS 11.0. I finally started getting the calls on notification tap from cold start and background scenarios in the UNUserNotificationCenter delegate didReceive: implementation.

Additionally, the willReceive: now also gets the call in the foreground scenario (as expected).

The payload I'm using is following. Note, that there's no content-available, or mutable-content set.

{
  "aps": {
    "sound": "default",
    "badge": 1,
    "alert": {
      "body": "test",
      "title": "test"
    }
  }
}