What are the application lifecycle in ios?
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How nsoperationque works?
What does ns stand for ios?
What are ios categories?
Why we use delegate in ios?
What are the different store migration options? When are they used?
What is oops in ios?
How do you setup/initialise a core data stack in your application? Is this activity performed on main thread? If not, why?
What is uiwindow in ios?
Can we support the same application for iphone 3gs and iphone 5, 6, 7? Why not?
What is didreceivememorywarning method in you viewcontroller?
What is grand central dispatch ios?
What does sn mean in a text message?