Question

I have an NSMutableArray (detailsMA)having 100 strings like @”True”.
Am storing that array in NSMutableDictionary which is already allocated.

            NSArray *array1 = [[NSArray alloc] initWithArray:detailsMA];
            [detailsDictionary setObject: array1 forKey:@"detailsMA"];

Now i changed the values of detailsMA, like replacing strings to @”False”, After that am retrieving the original array values,

            [detailsMA removeAllObjects];
            [detailsMA addObjectsFromArray:[detailsDictionary objectForKey:@"detailsMA"]];

Here am getting modified values, not the original values.
I need original values.
Please help me.

Answer 1

You should copy the array.

NSArray *array1 = [[NSArray alloc] initWithArray:detailsMA copyItems:YES];

Don’t forget to implement the NSCopying protocol in the classes for the objects to be copied

EDIT:

When you add the objects again, make a copy before adding.

[detailsMA addObjectsFromArray:[[NSArray alloc] initWithArray:[detailsDictionary objectForKey:@"detailsMA"] copyItems:YES]];