/// The viewer style. Defaults to Presentation
public var viewerStyle = CPImageViewerStyle.presentation

/// The image of animation image view
public var image: UIImage?

/// The title of *navigationItem.rightBarButtonItem* when viewerStyle is Push
public var rightBarItemTitle: String?

/// The image of *navigationItem.rightBarButtonItem* when viewerStyle is Push
public var rightBarItemImage: UIImage?

/// The action of *navigationItem.rightBarButtonItem* when viewerStyle is Push
public var rightAction: ((Void) -> (Void))?

class ViewController: UIViewController, ImageControllerProtocol {
  var animationImageView: UIImageView!
}

override func viewDidLoad() {
    animationImageView = UIImageView()
    animationImageView.frame = <#frame#>
    animationImageView.image = <#image#>
    self.view.addSubview(animationImageView)
}

let controller = CPImageViewerViewController()
controller.transitioningDelegate = CPImageViewerAnimator()
controller.image = animationImageView.image 
self.presentViewController(controller, animated: true, completion: nil)

override func viewDidLoad() {
    self.navigationController?.delegate = CPImageViewerAnimator()
}

let controller = CPImageViewerViewController()
controller.viewerStyle = .push
controller.image = animationImageView.image 
controller.title = "CPImageViewer"
self.navigationController?.pushViewController(controller, animated: true)