What are ios apps written in?
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What does use core data mean in xcode?
Explain Appstore uploading process
Describe @objc inference?
Implement the following methods: retain, release, auto release in iOS operating system?
Explain ios 7 airdrop?
Why we use delegate in ios?
Tell me what is iphone os?
Explain shallow copying and depth copying.
Which are the ways of achieving concurrency in ios?
What is inactive state in ios?
What is strong in ios?
Why do we override drawrect: method?