How do Telegram and facebook messenger clean up notifications on devices?

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When you receive a notification by Telegram or Facebook Messenger on multiple devices, if you read the message on one of them in the other notification is removed.

How does this happen?

PS: this happens even if the application is not running on mobile.

ios api push-notification

  • was bad guy.. strength of habit, nor did I realize what was in the in Portuguese.

  • I’m not a mobile developer, but I believe that apps check in the background/thread every x seconds if the message/action related to that notification has already been seen or performed, if yes, it removes...

  • @Herculmoreira: No, this doesn’t make sense, because it happens with different platforms.. android, desktop and Ios.. if you saw in one, in the others it is marked as read.

  • No problem Raphael. I reversed my vote to close

  • http://stackoverflow.com/questions/2665634/how-to-clear-a-notification-in-android

  • No.. This happens even if the app is not running.

  • Can’t send a "push" to remove the previous notification? : S

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Answered.

In the case of iOS you have to send the notification payload without Alert and with badge = 0, this way it will cancel notifications.

{"aps":{"badge":0}}

But for this to work out the expiry option of the notifications payload has to be greater than 0.

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