How we can execute some code when app is in background?
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What is the extension of ios files?
Differentiate between ‘assign’ and ‘retain’ keyword.
Difference between nil and Nil.
What is ios application?
Explain application states
Whats the difference between frame and bounds?
Will iphone 5s get ios 13?
Enlist the methods to achieve concurrency in ios?
What is dispatch queue in ios?
How can we prevent ios 8 app’s streaming video media from being captured by quicktime player on yosemite during screen recording?
What is the difference between synchronous & asynchronous task ?
Assume that an app is not in foreground but is still executing code. In which state will it be in?