How to make an CFArrayRef to an NSMutableArray

问题

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);

回答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];

回答2:

For an autoreleased version, use

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

来源：https://stackoverflow.com/questions/8761461/how-to-make-an-cfarrayref-to-an-nsmutablearray