What is iOS?2 1165
What's fast enumeration?2 1119
What are the differences between categories and extensions?1 922
What is a singleton?1 816
Name and explain the iOS app states.1 953
What are the memory management rules?1 911
Name the memory management rules and their related methods.1 921
Explain why delegates and notifications are different.1 869
What is lazy loading?1 957
Explain shallow copying and depth copying.1 818
What is a struct?1 927
Is the object retained if I call performSelector:withObject:afterDelay:?1 1321
What is posing in iOS?1 1800
Where do you test the developed apps if you do not have the device?1 788
Does iOs supports multitasking?1 856
Explain application states
Explain about AFNetworking. What is the base class used in AFNetworking library
what is your preferred programming language? Why? How long will it take you to learn a new programming language?
What is the methods for unzip file in AFNetworking
Difference b/w collectionView & uitableview?
Explain Apple push notification
How will you implement sets and the intersection operation? Complexity?
Explain which all events will perform an ios application in background
If you use location services in your app, will it drain your battery.if yes? How can we avoid?
How to do upload of large sized video file to server ? while uploading user presses “Homebutton” How long will execute?
Explain how an autorelease pool works at the runtime level
Explain @synchronized ,@dynamic
what is the difference between nonatomic & atomic ? which is thread safe and why
Explain what is the stack of autorelease pools. How autorelease pool work under the hood?
How to convert MVC design pattern to MVVM design patterns