I want a view to fade in when being added to the stack via
Set the alpha to zero before animating, then animate the alpha to one.
[fadingView setAlpha:0.0]; [containerView addSubview:fadingView]; [UIView beginAnimations:nil context:nil]; [fadingView setAlpha:1.0]; [UIView commitAnimations];
Before removing the view, just animate the alpha back to zero.
BTW, the view hierarchy is more of a tree than a stack.
If you have no other cleanup after the animation ends when fading out the view, then use:
[UIView setAnimationDelegate:fadingView]; [UIView setAnimationDidStopSelector:@selector(removeFromSuperview)];
If you are already setting a didStopSelector then call removeFromSuperview there.