What is category and class extension? How these differ?
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Explain the different types of ios application states.
What is ios application?
What is the use of controller object UIApplication?
What is latest version of ios?
How to parse xml? Explain
Differentiate 'app id' from 'bundle id'.
What are blocks in ios?
What is category and class extension?
What is retain counts?
Assume that system is running low on memory. What can system do for suspended apps?
What happens when you invoke a method on a nil pointer?
What is mvc and mvvm in ios?