iOS Guide
BEST COLLECTION OF IOS INTERVIEW QUESTIONS WITH ANSWERS.
Monday, December 28, 2015
Responder Chain and First Responder
A ResponderChain is a hierarchy of objects that have the opportunity to respond to events received.
The first object in the ResponderChain is called the FirstResponder.
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In the context of an NSOperation object, which runs in an NSOperationQueue, the terms concurrent and non-concurrent do not necessarily refe...
What is retain counts?
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NSThread vs GCD
Migrating Away from Threads The idea is that you eliminate work on your part, since the paradigm fits MOST code more easily. It reduces ...