public func show(originImageView: UIImageView?, contentsText: String?)

import SwieeftImageViewer

class ViewController: UIViewController {

  var imageViewer: SwieeftImageViewer!

  // init
  override func viewDidLoad() {
    super.viewDidLoad()
  
    imageViewer = SwieeftImageViewer(parentView: self.view)
  }
  
  func showImageViewer(imageView: UIImageView?, text: String?) {
    imageViewer.show(originImageView: imageView, contentsText: text)
  }
}