What does use core data mean in xcode?
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what is navigation controller?
What is delegate protocol in ios?
Explain differences between foundation and corefoundation
Who calls the dealloc strategy? Would we be able to implement dealloc in arc? In the event that indeed, what is the need to do that?
What is encapsulation in ios?
What is the use of double question marks (“??”) ?
Can we adjust the size of photos uploaded from the app?
What is difference between delegate and datasource in ios?
Explain parent-child context setup. How does it work? What are the advantages?
. How do you change the content of your app in order to change the views displayed in the corresponding window?
Did you used CLRegion? How its working?
what is the difference between Xcode, Cocoa and Objective C?