How does the runtime handle message passing? What is message forwarding?
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When is an app said to be in active state?
What is a struct?
What is singleton class in ios?
What is the latest version of ios?
What is urlsession?
Push notification working in ios?
Can java run on ios?
Assume that an app is not in foreground but is still executing code. In which state will it be in?
What is nspersistentstorecoordinator?
Difference between retain and assign ?
What is @implementation?
What are the Common reasons for app rejection from app store review process?