How to automatically delete push notifications from iOS notification centre at a specific time?

Question

I am developing an iOS app using Swift which has push notification feature. The app sends Birthday reminders notifications to the users via push notifications (APNS used here).

Currently, the push notification remains in the device's notification center until the user taps on that notification or opt to clear it from the device.

Now I am looking for a way to automatically delete that push notification at the end of every day as there is no need of showing past day's birthday notifications in the device.

Can someone suggest me a solution that in which way I can implement this? Is it possible to delete notification from iOS without having any user interaction?

Answer 1

This for scenario when the app is forcefully terminated by the user :

First of all send nonzero badge when you want to send Birthday reminders notifications to the users via push notifications , For example :

 {
  "aps": {
    "alert": {
      "title": "Hey! Urgent Reminder",
      "body": "Do not forget my wife SURPRISE BIRTHDAY PARTY"
    },
    "badge": 1
  }
} 

After that , When there is no need of showing notifications in the device , you can send silent notification with zero badge that will clear badge and notifications even if app is forcefully terminated by the user but didReceiveRemoteNotification will not called because app is terminated. payload for silent push notification :

 {
   "aps" : {
      "content-available" : 1,
        "badge" : 0,
        "Priority" : 10
   }
}

After send that payload will automatically clear badge and delete push notification from Notification Center.

Note that if badge was zero before sending silent notification , will not clear notifications.

https://developer.apple.com/library/archive/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/CreatingtheNotificationPayload.html