Core Data Fundamentals
Exploring the NSFetchedResultsControllerDelegate Protocol
To update the table view, we listened for notifications sent by the managed object context of the Core Data manager. This is a perfectly fine solution. But it can be messy to sift through the managed objects contained in the
userInfo dictionary of the notification. In a complex Core Data application, the
NSManagedObjectContextObjectsDidChange notification is sent very frequently. It includes every change of every managed object, even the ones we may not be interested in. We need to make sure we only respond to the changes of the managed objects we are interested in.
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