Which Calendar changed (Using EKEventStoreChangedNotification?)

Question

I'd like to know more details about what has changed when the EKEventStoreChangedNotification gets fired. I have many calendars and don't want to reload all of them if in one of them a reminder/entry has changed. (Ideally I could reload just that calendar. Or even better, just re-add or delete that single reminder in my locally stored data structure.)

I saw the posting below but it wasn't answered and my question is more generic: Is there ANY mechanism (using EKEventStoreChangedNotification or something else) to get ANY more details on how the event store has changed?

How to know which reminder is updated in EKEventStoreChangedNotification

Thanks, Daniel

Answer 1

Unfortunately, the documentation is pretty blunt:

Posted whenever changes are made to the Calendar database, including adding, removing, and changing events or reminders. Individual changes are not described.

It goes on to state that once that notification is posted, all of your Events are considered stale until you have re-fetched them.

So, unless you want to maintain a static database of events, and compare them all every time the notification posts, you are out of luck.