What is iOS?2 1090
What's fast enumeration?2 1045
What are the differences between categories and extensions?1 866
What is a singleton?1 755
Name and explain the iOS app states.1 901
What are the memory management rules?1 852
Name the memory management rules and their related methods.1 867
Explain why delegates and notifications are different.1 813
What is lazy loading?1 898
Explain shallow copying and depth copying.1 754
What is a struct?1 869
Is the object retained if I call performSelector:withObject:afterDelay:?1 1251
What is posing in iOS?1 1737
Where do you test the developed apps if you do not have the device?1 736
Does iOs supports multitasking?1 807
Explain about AFNetworking. What is the base class used in AFNetworking library
Find the letter count in UItextfield? Including first character?
How to do upload of large sized video file to server ? while uploading user presses “Homebutton” How long will execute?
Explain your process for tracing and fixing a memory leak
Explain which all events will perform an ios application in background
Difference b/w collectionView & uitableview?
When dealing with property declarations, what is the difference between atomic and non-atomic?
Explain @synchronized ,@dynamic
How to convert MVC design pattern to MVVM design patterns
what is your preferred programming language? Why? How long will it take you to learn a new programming language?
How will you implement sets and the intersection operation? Complexity?
Explain how an autorelease pool works at the runtime level
If you use location services in your app, will it drain your battery.if yes? How can we avoid?
Difference between iOS 3 , iOS4, iOS 5, iOS 6, iOS 7 and iOS 8 (What are the new features)
Explain application states