What is meaning of 'atomic' keyword?
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What is retain in ios?
Does iOs supports multitasking?
Give example scenarios when an application goes into inactive state?
What is ios technology?
What is singleton pattern in ios?
What is the difference between 'assign' and 'retain' keyword?
What is synchronous web request and asynchronous ?
Explain the difference between strong and retain.
What is the difference between viewdidload and viewdidappear?
Explain the difference between cocoa and cocoa touch?
Why uicontrol is provided if we can create custom uiview?
How can an operating system improve battery life while running an app?