Limit for Local Notifications (UNNotificationReque

问题:

I know that the limit of local notifications is 64 for UILocalNotification. It's written in Apple Dev Docs. But UILocalNotification is deprecated in iOS 10. Instead this one, Apple proposes to use UNNotificationRequest. But Apple Dev Docs doesn't say anything about limiting the count of notifications. I found this answer, but it doesn't have links to Apple Dev Docs or something like that (it's just an opinion). Does anyone know for sure about restrictions of local notifications? Maybe someone know the link to Dev Docs or is there an official response from Apple about this?

回答1:

Although it's not officially documented, testing shows that UNNotificationRequest retains the 64 notification limit.

However, importantly, the way that they deal with the notification queue has changed. If there are more than 64 notifications:

• UILocalNotification would keep the 64 soonest notifications
• UNNotificationRequest keeps the 64 last set notifications

This may be a bug, and is documented in this radar.

回答2:

Yes indeed, I just checked for iOS 10.2 and the limit for the total number of UNNotificationRequest you can add is still 64.