DraggableViewController
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DraggableViewController in Swift version according the tutorial on http://imnotyourson.com/draggable-view-controller-interactive-view-controller/
how can I fix that problem ,Unexpectedly found nil while implicitly unwrapping an Optional value: file, we call delegate method it's found an error ,otherwise view display is working.
When you set **nextViewController.modalPresentationStyle = .FullScreen** to **nextViewController.modalPresentationStyle = .OverFullScreen** or .OverCurrentContext After dismissing the overlay viewcontroller (hitting dismiss button on brown view) the app goes to **black** ..
is it possible to use this to replicate the scrollable menu effect of the Vevo app? http://imgur.com/a/5tiJY