What is iOS?2 1431
What's fast enumeration?2 1365
What are the differences between categories and extensions?1 1122
What is a singleton?1 993
Name and explain the iOS app states.1 1115
What are the memory management rules?1 1094
Name the memory management rules and their related methods.1 1135
Explain why delegates and notifications are different.1 1027
What is lazy loading?1 1137
Explain shallow copying and depth copying.1 993
What is a struct?1 1091
Is the object retained if I call performSelector:withObject:afterDelay:?1 1522
Where do you test the developed apps if you do not have the device?1 949
Does iOs supports multitasking?1 1027
What is core data in ios swift?
Explain difference between sax parser and dom parser?
In a single model, can I have few entities in one sqlite db file and remaining in another sqlite db file?
DB updation when app new version comes ?
What is difference between static library and framework?
What is shared instance in ios?
Can a "delegate" retained in ios?
What is arc and how is it different from autorelease?
What is the concurrency how many ways you know to achieve concurrency?
In iphone development how to import the private key into your keychain?
How to use reusable cell in uitableview?
Can you explain ios design patterns?
Enlist frameworks for cocoa?
What is the use of double question marks (“??”) ?
What is auto-layout?