Explain how the push notification works in iOS operating system?
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Explain difference between coredata & sqlite?
What does exc_bad_access mean?
What is delegate in ios objective c?
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. Name the app sate which it reaches briefly on its way to being suspended
Assume that an app is not in foreground but is still executing code. In which state will it be in?
Which class will be subclassed in iOS operating system?
What is messaging? How does the runtime handle message passing? What is message forwarding?
Define view object in iOS operating system?
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What is ios image?
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