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Stephen Whitfield
16,771 PointsConcurrency Programming in iOS
Hey guys. I've been studying GCD since having started the Photobombers lesson and ran across something similar called NSOperationQueue, but I can't seem to tell the difference between the two. Is there one that's more efficient than the other? Does one have more features than the other?
2 Answers
Sam Soffes
Treehouse Guest TeacherInternally, NSOperationQueue uses GCD. Personally, I find GCD easier to get started with. NSOperationQueue has some really neat features and gives you extra control over how things run. For something like the Photo Bombers app, it is definitely overkill in my opinion.
It would be a good exercise to try to convert everything to NSOperationQueue to get to know it though. Both NSOperationQueue and NSOperation have a lot of documentation. Read through that and try it out! You might also take a look at AFNetworking's operation subclass to get a feel for it.
Amit Bijlani
Treehouse Guest TeacherNSOperationQueue is a high level API for using GCD. So if you find GCD too complicated then use NSOperationQueue.
Stephen Whitfield
16,771 PointsThanks!