What is singleton design pattern in ios?
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Explain usage of struct?
What are the lifecycle events of uiviewcontroller?
What is categories in iOS?
Why do we override drawrect: method? How to explicitly call it?
What performance issues can you face when using coredata?
Implement the following methods: retain, release, auto release in iOS operating system?
What do you know about the ios kernel?
What is core data?
What is gcd? How is it used?
Which language is used in ios?
What is meant by delegate in ios?
How to registering your device with the program portal for iphone development?