Daniel Richman wrote:
I've got an object which has an NSMutableArray as an instance variable.
If, in one of my methods, I try to call
[myArray addObject:@"this is a test"]; (for example),
I get no error, but the object isn't added. If I try to do
[myArray objectAtIndex:0];
I get (null), and
[myArray count];
returns zero.
However, if I just declare the NSMutableArray inside one of the methods
of the object, everything works fine. However, this is clearly not an
optimal solution because the array is destroyed after the method
finishes executing.
I posted a sample project at
http://danielrichman.com/tmp/NSMutableArray_Problem.tar.gz .
You declared your instance variable, but you didn't create the array.
You're trying to manipulate a variable that points who knows where.
Somewhere, such as in some initialization method, you'd need something
like myArray = [[NSMutableArray alloc] initWithCapacity: 10]. (Typed
into e-mail, not tested.)
--
James W. Walker, Innoventive Software LLC
<http://www.frameforge3d.com/>
_______________________________________________
Cocoa-dev mailing list ([email protected])
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com
This email sent to [EMAIL PROTECTED]
