What is automatic reference counting (arc)?
Is the delegate for a CAAnimation retained in iOS operating system?
Difference between retain and assign ?
Is appdelegate a singleton?
Explain how an autorelease pool works at the runtime level
What is notification in iOS?
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what are fetched properties?
What is the difference between NSArray and NSMutableArray in iOS operating system?
Explain ~/documents, ~/library, ~/tmp. What directory is ~ on ios?
Is it possible to write a program without using nib file
What is the purpose of reuseidentifier?
How do you stop apps running in the background on ios?
How to generate a protected disk image containing your csr, private key and development certificate in iphone development?