What is the difference between 'assign' and 'retain' keyword?
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What is the difference between viewdidload and viewdidappear?
Have you uploaded app on appstore? What is the process?
Can a static library (.a) contain assets like pictures, sound documents and so on.?
What is a category and when is it used?
What is UICollectionView ?
Did you used CLRegion? How its working?
What is view controller xcode?
What is a struct?
Where do you test the developed apps if you do not have the device?
What is background state in ios?
What happens if iapplication object does not handle an event?
What is nspersistentstorecoordinator? What duties does it perform?