What is the difference between copy and retain?

Question Posted / vijay

No Answer is Posted For this Question
Be the First to Post Answer

More Apple iOS Interview Questions

Explain alamofire benefits

What is App Bundle?

What is the ? In swift?

How to do upload of large sized video file to server ? while uploading user presses “Homebutton” How long will execute?

What is latest xcode version?

What is meaning of 'readonly' keyword?

Explain about AFNetworking. What is the base class used in AFNetworking library

Explain differences between foundation and corefoundation

Is the delegate for a CAAnimation retained in iOS operating system?

Why do we need to use @Synthesize in iOS operating system?

How do you setup/initialise a core data stack in your application? Is this activity performed on main thread? If not, why?

What are the 7 osi layers?

For more Apple iOS Interview Questions Click Here