What is closures in ios?
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Differentiate 'app id' from 'bundle id'.
How to parse xml? Explain
What is message forwarding?
What’s the difference between mkannotation and mkpointannotation?
When is an app said to be in active state?
What is ios design?
How we can execute some code when app is in background?
Explain what is the stack of autorelease pools. How autorelease pool work under the hood?
Is xcode a framework?
. Why an app on iOS device behaves differently when running in foreground than in background?
What is difference strong and weak reference ? Explain.
What is weak and strong in ios?