Explain concept of notification center, local and remote notifications.
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Explain place holder constraint
What is delegate pattern in iOS?
What is category in ios?
what are the source items used by Xcode?
What is cocoa touch framework in ios?
What is strong in ios?
What is datasource in ios?
Explain difference between mrc and arc?
Who calls the main function of you app during the app launch cycle?
Implement the following methods: retain, release, auto release in iOS operating system?
Explain difference between release and autorelease?
What is polymorphism in ios?