title: How can I replicate the trashing animation of Mail.app
body: <p>In my iPhone app, I have put a UIBarBUtton of type UIBarButtonSystemItemTrash in my UIToolBar. When pressed, I'd like to replicate the animation of Mail.app: the bin opens, the UIView folds and flies into it.<br>
  Is there a way to access this animation ithrough the iPhone SDK?  </p>
  
  <p>Presently I am using a custom made animation, but there are some limits; for example, I cannot animate the bin itself.
  Do you have any suggestion? Code samples?</p>
  
  <p>Cheers,<br>
  Davide</p>