Reuse Identifier on iCarousel

Question

I am trying to build a carousel on my app based on this project, https://github.com/nicklockwood/iCarousel, only I am writing it in swift. I have it working correctly, where you can scroll through and tap on the item at index correctly here:

 func carousel(_ carousel: iCarousel, viewForItemAt index: Int, reusing view: UIView?) -> UIView {
        let tempView = UIView(frame: CGRect(x: 0, y: 130, width: 295, height: 300))
        let object = self.imageFilesArray.object(at: index) as! PFObject

        let imageView = UIImageView()
        imageView.frame = CGRect(x:  0, y: 0 , width: 295, height: 295)
        imageView.layer.cornerRadius = 15
        imageView.layer.masksToBounds = true
        let imageFile  = object.object(forKey: "Image") as! PFFile
        imageFile.getDataInBackground{
            (data, error) -> Void in
            if error == nil {


            }
            imageView.image = UIImage(data: data!)
            tempView.addSubview(imageView)
}
        return tempView
    }



func carousel(_ carousel: iCarousel, didSelectItemAt index: Int) {
let cell = carouselView.itemView(at: index)
        let object = self.imageFilesArray[index] as! PFObject

        if cell?.tag == 0 {

            print("open cell")
            let moveImg = CGAffineTransform(translationX: 0, y: -100)
            UIView.animate(withDuration: 0.4, delay: 0.1, options: [], animations: {
                //cell.imageView.transform = moveImg

                }, completion: nil)
            cell?.tag = 1

        } else if cell?.tag == 1 {

            let storyBoard : UIStoryboard = UIStoryboard(name: "Main", bundle:nil)

            let nextViewController = storyBoard.instantiateViewController(withIdentifier: "EventDetailViewController") as! EventDetailViewController

            self.present(nextViewController, animated:false, completion:nil)

        }

However, what I am trying to do is when I tap the item at index, the imageView transitions on the screen. My issue is that I cannot access that particular cells imageView in order to move it. Does anyone know what I need to change?

Answer 1

You could give your imageView a tag like this:

let imageView = UIImageView()
imageView.frame = CGRect(x:  0, y: 0 , width: 295, height: 295)
imageView.layer.cornerRadius = 15
imageView.layer.masksToBounds = true
imageView.tag = 2

Then you can retrieve the imageView from the cell like this:

if let imageView = cell.viewWithTag(2) as? UIImageView {
    imageView.transform = moveImg
}

OR

You could filter through the subviews of the cell and find the first subview that can be cast to a UIImageView. Although this isn't very robust, consider creating a Class and XIB for this cell.

cell.subviews.flatMap { $0 as? UIImageView }.first?.transform = moveImg