What is difference between delegate and datasource in ios?
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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 are the different delete rules that a relationship can have?
What is a protocol in objective-c programming language?
What coding language is used for ios apps?
Explain xib?
what is singleton class? Why the whole application creates a single instance?
What is retain in ios?
What is xib?
Why do we use synchronized ?
What is a delegate xcode?
How can a user respond or react to the state transitions on the app?
What is the use of controller object UIApplication?