What is nsmanagedobjectcontext? What are the different concurrency types?
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Which is the application thread from where uikit classes should be used?
How can we achieve singleton pattern in iOS?
What is a weak var?
Functionality of accelerometer of an iphone
How do you fix app errors on iphone?
What are the different store migration options? How do they work?
Explain ios switching applications?
What are sensors in iphone?
Explain keywords alloc and new?
What are the App states in iOS operating system? Explain them
What is retain counts?
How are non-atomic and atomic properties different?