Type Alias


A synchronization point that represents the last batch of changes returned by the enumerator.


typedef NSData *NSFileProviderSyncAnchor;


Your file provider should populate the sync anchor with the information it needs to identify and enumerate only the changes that occurred after the synchronization point. For example, a simple sync anchor could use the time and date of the last update successfully downloaded from the server. A request to enumerate changes from that sync anchor would then return only the changes downloaded after that date.

See Also

Change Tracking

Tracking Your File Provider's Changes

Create an enumerator to track changes to your file provider's content.


An observer that receives changes and deletions during enumeration.