Do I need to release UITableViewCell accessoryView in my iPhone app?

Question

The memory management documentation says I need to release objects I create with alloc.
In my case I am creating a custom view (a UIButton) using alloc and assigning to the cell.accessoryView. If I use a temporary object, I need to release it after making the assignment, that I understand, but do I need to include [cell.accessoryView release] somewhere too? Am I still responsible to release the button I've created? If not, why is that?
None of the examples I can find in the Table Programming Guide address this one way or the other.

Answer 1

Hi, you must not release it a second time with
[cell.accesoryView release];
// create a UIButton. Retaincount = 1
button = [[UIButton alloc] initWithFrame:CGRectMake(270, 10, 25, 25)];
// use it as accessoryView (retaincount will be increased by 1)
cell.accessoryView = button;
// release the button. (retaincount will be decreased by 1 back to 1)
[button release];
if you want to "get rid" of the accessoryView in that cell later you just need to
cell.accessoryView = nil;
This will cause the cell to release the button which drops the retaincount to 0