Automatically dismiss underling modal view

I'm sharing this as it took me A while to figure out. This is if you need to get rid of a double开发者_运维技巧 stack of modal views IF it is pressent.

if(self.parentViewController.parentViewController)
        [self.parentViewController.parentViewController dismissModalViewControllerAnimated:YES];
else
    [self dismissModalViewControllerAnimated:YES];

I have a view that sometimes gets called from a modal view. In that case I would need to get rid of both views at the same time. While dealing with the situation where it was the only modal view. This worked.

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As of xCode 4.2 this is no longer working, The new way to deal with this situation is:

if(self.presentingViewController.presentingViewController)
    [self.presentingViewController.presentingViewController dismissModalViewControllerAnimated:YES];
else
    [self dismissModalViewControllerAnimated:YES];

As pointed out by @Hollance in a relevant thread of mine:

iOS 5 SDK treating UIViews differently

"There is a new property in iOS 5 named presentingViewController. The meaning of parentViewController got changed a bit with the new container view controller API, so it may not always be set when you think it is. That's what presentingViewController is now for."