Access Method After UIImageView Animation Finish

Question

I have an array of images loaded into a UIImageView that I am animating through one cycle. After the images have been displayed, I would like a @selector to be

Answer 1

Created Swift Version from GurPreet_Singh Answer (UIImageView+AnimationCompletion) I wasn't able to create a extension for UIImageView but I believe this is simple enough to use.

class AnimatedImageView: UIImageView, CAAnimationDelegate {

    var completion: ((_ completed: Bool) -> Void)?

    func startAnimate(completion: ((_ completed: Bool) -> Void)?) {
        self.completion = completion
        if let animationImages = animationImages {
            let cgImages = animationImages.map({ $0.cgImage as AnyObject })
            let animation = CAKeyframeAnimation(keyPath: "contents")
            animation.values = cgImages
            animation.repeatCount = Float(self.animationRepeatCount)
            animation.duration = self.animationDuration
            animation.delegate = self

            self.layer.add(animation, forKey: nil)
        } else {
            self.completion?(false)
        }
    }

    func animationDidStop(_ anim: CAAnimation, finished flag: Bool) {
        completion?(flag)
    }
}


let imageView = AnimatedImageView(frame: CGRect(x: 50, y: 50, width: 200, height: 135))
imageView.image = images.first
imageView.animationImages = images
imageView.animationDuration = 2
imageView.animationRepeatCount = 1
view.addSubview(imageView)

imageView.startAnimate { (completed) in
     print("animation is done \(completed)")
     imageView.image = images.last
}