问题
Because UILocalNotification is now deprecated, I moved my code to the new UNNotificationRequest API.
It states: 'cancelLocalNotification' was deprecated in iOS 10.0: Use UserNotifications Framework's -[UNUserNotificationCenter removePendingNotificationRequestsWithIdentifiers:]
But it seems that it is not equal - while I could remove messages with cancelLocalNotification at any time (even they are displayed/delivered) it seems that removePendingNotificationRequestsWithIdentifiers only removes undelivered notifications. That's really annoying.
So my question is:
Is there a valid way removing notifications queued with UNNotificationRequest or should I just ignore those deprecation warnings?
回答1:
You can also use the removeDeliveredNotifications(withIdentifiers:) function to remove already delivered notifications from the notification center. For more info, see the documentation
回答2:
Swift 4
If you want to remove all UNNotificationRequest items, you can use:
let center = UNUserNotificationCenter.current()
center.removeAllPendingNotificationRequests()
来源：https://stackoverflow.com/questions/45635400/cancel-unnotificationrequest