What is variable in ios?
What is the use of appdelegate in ios?
Which is the application thread from where uikit classes should be used?
What is meaning of 'atomic' keyword?
Explain the difference between strong and retain.
What are the features of iphone 3gs?
Explain the features is ios 6?
What is xib?
What manual memory management ? How it work?
What is uikit in ios?
What are the important delegate methods of nsxml parser?
What is category and class extension? How these differ?
When to use nsmutablearray and when to use nsarray?