What is background state in ios?
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What is nsfetchedresultscontroller?
what is the use of PO command in Xcode?
what is the difference between Xcode, Cocoa and Objective C?
What are layer objects and what do they represent?
What is uiviewcontroller in ios?
What are b-trees?
How to parse xml?
Explain about design patterns in iOS
What is difference between mvc and mvvm in ios?
What is the current iphone ios?
what are the controllers are available in objective C
How can mobile application errors be prevented?