Problem copying NSMutableArray

Question

I am trying to copy one array to another:

NSMutableArray *itemsCopy = [[NSMutableArray alloc] initWithArray:self.items copyItems:YES];

but I ge

Answer 1

You need to make sure all the contents of self.items adopt the NSCopying protocol.

If you just want a shallow copy, send the -mutableCopy message to self.items.

NSMutableArray *itemsCopy = [self.items mutableCopy];