title: UIModalTransitionStylePartialCurl does not trigger ViewWillAppear
body: <p>I am using UIReferenceLibraryViewController and would like to play sound when it is dismissed. I am calling my sound in my main controller's viewWillAppear event. However if I change UIReferenceLibraryViewController ModalTransitionStyle style to UIModalTransitionStylePartialCurl, viewWillAppear is not triggered. Is there any other way I can capture its dismissal?</p>