How to copy all objects of NSArray when copying the array itself [duplicate]

Question

This question already has answers here:

Deep copying an NSArray (6 answers)

Closed 8 years ago.

I have an array of objects

I want to copy the array and all contents of it

"Object" implements NSCopying

I thought that doing

NSArray *copiedArray = [array copy];

would trigger copyWithZone in the objects contained inside of it.

Unfortunally not...

How can this be done?

Answer 1

That depends on how deep you want the copy of the array to be. If one level is enough, - initWithArray:copyItems: is going to do the trick. If you want an actual deep copy, you have to write it yourself I'm afraid.