如何改进NSFetchedResultsController performFetch:性能?
Ihaveonly3237recordsinthedatabaseandIusedUISearchDisplayControllerandNSFetchedResultsControllerforsearch.butwhenItypethekeywordforsearchit'sextremelys...
Ihaveonly3237recordsinthedatabaseandIusedUISearchDisplayControllerandNSFetchedResultsControllerforsearch.butwhenItypethekeywordforsearchit'sextremelys...