How to make an CFArrayRef to an NSMutableArray

Question

This is my Code to create the CFArrayRef. I want to know how to make it to an NSMutableArray. I need it for my TableViewController. Or is there another way to use the CFArrayRef in the TableViewController?

ABAddressBookRef addressBook = ABAddressBookCreate();
CFArrayRef arrayOfAllPeople = ABAddressBookCopyArrayOfAllPeople(addressBook);

Plot

Answer 1

A CFArrayRef is toll-free bridged to NSArray *, so you can cast it as such and then create a mutable copy:

NSMutableArray *data = [(NSArray *) myCFArrayRef mutableCopy];

Cookgeneral

How about type casting NSMutableArray to CFArrayRef – Unlovely

If you use ARC, I think you need to use this instead: (__bridge NSArray *) – Octavie

Answer 2

For an autoreleased version, use

NSMutableArray* data = [NSMutableArray arrayWithArray: (NSArray*) myCFArrayRef];

Coles