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iosobjective-ccloudkit

discoverAllContactUserInfosWithCompletionHandler faster?

How can I create a CKOperation with higher priority than the default for discoverAllContactUserInfosWithCompletionHandler?

I can't find an example of querying all user info without using [[CKContainer defaultContainer] discoverAllContactUserInfosWithCompletionHandler: which is pretty low priority and takes forever to complete.

Solution

  • The CloudKit documentation for discoverAllContactUserInfosWithCompletionHandler says this:

    This method searches for the users asynchronously and with a low priority. If you want the task to execute with a higher priority, create a CKDiscoverAllContactsOperation object and configure the desired priority.

    You can set the priority like this:

    var operation: CKDiscoverAllContactsOperation = CKDiscoverAllContactsOperation()
operation.queuePriority = NSOperationQueuePriority.High

    Sample code how to use the CKDiscoverAllContactsOperation can be found here: Any working sample code for CKDiscoverAllContactsOperation for IOS8 beta CloudKit?