What is fast enumeration in iOS operating system?
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Difference between ScrollviewdidScroll and didendDecelerating delegates?
“BgTask “ ? how long execute?
What is abstract class in ios?
Tell about block and GCD
If you use location services in your app, will it drain your battery.if yes? How can we avoid?
What is Process?
Can we support the same application for iphone 3gs and iphone 5, 6, 7? Why not?
What is ios architecture?
What is a memory leak ios?
What is the ? In swift?
What are some common execution states in ios?
What is uitableviewdatasource?