What is difference between nsnotification and delegate?
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What is @dynamic in objective-c ?
What is completion handler in ios?
Explain app's state transitions when it gets launched?
Is ios written in c?
Explain the difference between nil and nil?
what are the source items used by Xcode?
How nsoperationque works?
A tableview with while tapping on cell show a popOver. and tapping on it move to another view controller, is it possible if yes? then how?
How many types of background modes supported in ios?
What persistent storage used in mobile apps - ios?
Explain usage of struct?
What is meant by delegate in ios?