ART001-circularImage.swift

circularImage.swift

extension UIImage {
  class func circularImage(from image: UIImage, size: CGSize) -> UIImage? {
      let scale = UIScreen.main.scale
      let circleRect = CGRect(x: 0, y: 0, width: size.width * scale, height: size.height * scale)

      UIGraphicsBeginImageContextWithOptions(circleRect.size, false, scale)

      let circlePath = UIBezierPath(roundedRect: circleRect, cornerRadius: circleRect.size.width/2.0)
      circlePath.addClip()

      image.draw(in: circleRect)

      if let roundImage = UIGraphicsGetImageFromCurrentImageContext() {
          return roundImage
      }

      return nil
  }
}