Explain the difference between copy and retain?

Question Posted / madhu

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

More Apple iOS Interview Questions

What is messaging? How does the runtime handle message passing?

What skills are required for ios developer?

Suppose I get a “blog returned invalid data” error message. What do I do?

How to start a selector on a background thread.

How to registering your device with the program portal for iphone development?

What is gcd in ios swift?

What is ipa?

What are the ways to store data localy on iphone device?

What is nsmanagedobjectcontext? What are the different concurrency types? Explain each type.

What are extra features added in ios 9?

What is nspersistentstore?

Explain your process for tracing and fixing a memory leak

For more Apple iOS Interview Questions Click Here