title: Open in + UIDocumentInteractionController : how to filter options in SDK iOS 6 (canPerformActions is deprecated)
body: <p>Since the new SDK was release (iOS 6), the delegate method <code>documentInteractionController:canPerformAction:</code> of the <code>UIDocumentInteractionControllerDelegate</code> is deprecated.</p>
  
  <p>Using that method you were able to prevent default actions like <code>print:</code> and <code>copy:</code> to appear.</p>
  
  <p>The method is being called in the current version of iOS 6, but in future versions this method will not be called and my app will show actions that I don't want to support.</p>
  
  <p>I read the available documentation for the UIDocumentInteractionController and its delegate and I'm not able to find a another way to do what I do in the canPerformAction method.</p>
  
  <p>Any ideas?</p>
  
  <p>As a plus, it would be great to be able to filter apps like mail or twitter (that appears by default) but I guess that this is not possible.</p>