Is the object retained if I call performSelector:withObject:afterDelay:?
What is atomic and non atomic in ios?
Functionality of accelerometer of an iphone
Explain difference between coredata & sqlite?
What manual memory management?
Difference between iOS 3 , iOS4, iOS 5, iOS 6, iOS 7 and iOS 8 (What are the new features)
How to use core data objects between two threads?
What is autorealease pool?
Explain the difference between bounds and frame?
What is view object in iOS operating system?
what is the difference between nonatomic & atomic ? which is thread safe and why
How do you fix app errors on iphone?
what is the use of PO command in Xcode?