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2014/10/15 ¤U¤È 10:10:21
iphone Programming Glossary: initwithconcurrencytypeiPhone iOS how to merge Core Data NSManagedObjectContext? http://stackoverflow.com/questions/10403538/iphone-ios-how-to-merge-core-data-nsmanagedobjectcontext a private queue so access happens on a separate thread. NSManagedObjectContext context NSManagedObjectContext alloc initWithConcurrencyType NSPrivateQueueConcurrencyType insert this context into the current context hierarchy context.parentContext context execute..
NSManagedObjectContext performBlockAndWait: doesn't execute on background thread? http://stackoverflow.com/questions/11831946/nsmanagedobjectcontext-performblockandwait-doesnt-execute-on-background-thread backgroundMOC if backgroundMOC nil return backgroundMOC backgroundMOC NSManagedObjectContext alloc initWithConcurrencyType NSPrivateQueueConcurrencyType return backgroundMOC Notice that it is declared with a private queue concurrency type so its..
More iCloud Core Data synching woes http://stackoverflow.com/questions/14478517/more-icloud-core-data-synching-woes coordinator self persistentStoreCoordinator if coordinator nil managedObjectContext_ NSManagedObjectContext alloc initWithConcurrencyType NSMainQueueConcurrencyType managedObjectContext_ performBlockAndWait ^ managedObjectContext_ setPersistentStoreCoordinator..
core data update in background http://stackoverflow.com/questions/15269768/core-data-update-in-background 0 ^ Add code here to do background processing NSManagedObjectContext context NSManagedObjectContext alloc initWithConcurrencyType NSPrivateQueueConcurrencyType self.backgroundManagedObjectContext context if self.managedObjectContext nil self.managedObjectContext..
Core Data's NSPrivateQueueConcurrencyType and sharing objects between threads http://stackoverflow.com/questions/8637921/core-datas-nsprivatequeueconcurrencytype-and-sharing-objects-between-threads these two context They need to be set up. Assume they are. NSManagedObjectContext mainMOC NSManagedObjectContext alloc initWithConcurrencyType NSMainQueueConcurrencyType autorelease NSManagedObjectContext backgroundMOC NSManagedObjectContext alloc initWithConcurrencyType.. NSMainQueueConcurrencyType autorelease NSManagedObjectContext backgroundMOC NSManagedObjectContext alloc initWithConcurrencyType NSPrivateQueueConcurrencyType autorelease Now this can safely be called from ANY thread backgroundMOC performBlock ^ NSArray..
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