You asked something similar back in March

http://www.cocoabuilder.com/archive/cocoa/300383-iphone-animation-puzzle.html

I think the answer is still UIViewAnimationOptionAllowUserInteraction. Don't 
know why changing to Lion would have made a difference however as I think that 
option has been off by default in all versions of iOS 4.x, so it should never 
have worked. 

On Jul 30, 2011, at 12:44 PM, David Rowland wrote:

> I have a routine that presents and then fades a label and a button,
> 
> - (void)fadeView:(UIView *)theView {
>  theView.alpha = 1.0;
>  infoButton.hidden = FALSE;
>  [UIView animateWithDuration:2.5
>                   animations:^{theView.alpha = 0.0;}
>                   completion:^(BOOL finished){infoButton.hidden = TRUE;}
>   ];
> }
> 
> I changed to Lion and Xcode 4.1 and the behavior has changed. The fade occurs 
> as it should, but while it's in action my touch controls are unresponsive. 
> Formerly, they worked during the fade. Anyone else noticed something like 
> this?
> 
> thanks,
> 
> David
> 
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