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What are the App states in iOS operating system? Explain them
By
Mohan Gupta
in
Learn iOS Programming
on
Dec 08
2013
0
1.4k
1
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Oct, 2015
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There are 5 execution State in ios App. 1.Not running 2.Inactive 3.Active 4.Background 5.Suspended
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Outline the class hierarchy for a UIButton until NSObject in iOS operating system.
What is an NSOperationQueue and how/would you use it in iOS operating system?
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