A simple class that draws a PaintCode StyleKit "Image Method" image centered inside a UIView

SKImage.swift

// SKImage
// A simple class that draws a PaintCode StyleKit "Image Method" image centered inside a UIView
// - installation: add to project and replace STYLEKIT_NAME comment with name of StyleKit class
// - instantiation: SKImage(image: "NameOfImage")
// - instantiation (with custom size): SKImage(image: "NameOfImage", size: CGRectMake(0, 0, 16, 16))

import UIKit
 
class SKImage: UIView {

  typealias StyleKit = /* STYLEKIT_NAME */

  let view = UIImageView()
  var size: CGRect?

  convenience init(image: String, size: CGRect? = nil) {

    // fetch the UIImage from StyleKit
    let image = StyleKit.valueForKey("imageOf" + image) as! UIImage

    // by default, use the size passed in or the dimensions of the image
    let _size = size ?? CGRect(
      x: 0,
      y: 0,
      width: image.size.width,
      height: image.size.height
    )

    self.init(frame: _size)
    self.size = _size

    // scale the image as the imageview scales
    view.contentMode = .ScaleAspectFill
    view.image = image

    centerIcon()

    addSubview(view)
  }

  // center the image in the view
  func centerIcon() {

    view.frame = CGRect(
      x: (bounds.size.width / 2) - (size!.width / 2),
      y: (bounds.size.height / 2) - (size!.height / 2),
      width: size!.width,
      height: size!.height
    )
  }

  // recenter image if the view changes dimensions
  override func layoutSubviews() {
    centerIcon()
  }
}

How do I call this for my View Controller? Thank you very much.