Is ios development hard?
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How to start a selector on a background thread.
Outline the class hierarchy for a UIButton until NSObject.
What’s the difference between an “app id” and a “bundle id” and what is each used for?
What is view object in ios?
What is @dynamic and any place where it is used?
what is the difference between nonatomic & atomic ? which is thread safe and why
What are selectors in objective-c?
How to implement "load more" using nsfetchedresultscontroller?
Explain steps for using coredata?
Explain retain counts in iOS operating system?
What is atomic and nonatomic in iOS operating system? What is run loop in iOS ?
What is block in ios objective c?