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

Question

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?

@AnoopVaidya and whoever upvoted you: That's a shallow copy, the question is about creating a deep copy. — JustSid
– JustSid, Commented Nov 28, 2013 at 11:59
If you want a deep copy then JustSid answer is good. For more stackoverflow.com/questions/647260/… — Anoop Vaidya
– Anoop Vaidya, Commented Nov 28, 2013 at 12:07
@AnoopVaidya He says that he thought that copy would call copyWithZone: on all objects in the container, unfortunately it doesn't. It ends with How can this be done?. Granted, it doesn't mention deep copies explicitly, but that's what he is asking... — JustSid
– JustSid, Commented Nov 28, 2013 at 12:08

JustSid · Accepted Answer · 2013-11-28 11:58:07Z

6

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.

answered Nov 28, 2013 at 11:58

JustSid

25.4k7 gold badges82 silver badges101 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

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

1 Answer 1

Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Linked

Related