UIImage that continuously blink. "Assign it in the storyboard"

BlinkingImage.swift

import UIKit

class BlinkingImage: UIImageView {
  override func awakeFromNib() {
    super.awakeFromNib()
    UIView.animate(withDuration: 1.2,
                   delay: 0.0,
                   options: [.autoreverse, .repeat, .curveEaseInOut],
                   animations: {
                    self.alpha = 0.10
    }, completion: nil)
  }
}