Question

So I have this NSMutableDictionary object:

pdata=[[NSMutableDictionary alloc] initWithObjectsAndKeys:
       @"",@"pid",
       @"",@"pname",
       [[NSMutableArray alloc] initWithCapacity:1],@"ilist",
       nil];

And then I copy this object into another object like this:

NSMutableDictionary *pdataCopy=[[NSMutableDictionary alloc] initWithDictionary:pdata copyItems:TRUE];

But once Ive done this, pdataCopy.ilist is now an NSArray instead of NSMutableArray.

How can I copy a dictionary object whilst maintaining the mutability of the properies inside it?

Answer 1

Actually you can’t. You can get a mutable array by

NSMutableArray *mutableArray = [pdataCopy.ilist mutableCopy]