Difficulty loading Image in Swift with Kingfisher - ios

Question

I have a strange problem. I am trying to use Kingfisher in order to load and an cache an Image from Firebase in my app. The problem is that kKingfisher does not download the image. I am using a Placeholder Image that is locally stored and the scroll view displays that Image. If I remove the placeholder part from the command, the app crashes. So I know the Kingfisher function works by at least placing the placeholder Image into the UIImageView but not the image from the URL. Here is the code:
Can you point me to the right direction?
import UIKit
import Kingfisher
class Backprogramme: UIViewController {
override var prefersStatusBarHidden: Bool {
return true
}
#IBOutlet var BackPScroll: UIScrollView!
var imageArray = [UIImage]()
var folie1Image = UIImageView()
override func viewDidLoad() {
super.viewDidLoad()
let folie1URL = URL(string: "https://firebasestorage.googleapis.com/v0/b/backmaster-cdb60.appspot.com/o/Folie1.PNG?alt=media&token=efcb8e93-b817-41f3-a96f-946fd47cf468")!
folie1Image.kf.setImage(with: folie1URL, placeholder: #imageLiteral(resourceName: "first"))
imageArray = [folie1Image.image!]
for i in 0..<imageArray.count {
let imageView = UIImageView()
imageView.image = imageArray[i]
let xPosition = self.view.frame.width * CGFloat(i)
imageView.frame = CGRect(x: xPosition, y: 0, width: self.BackPScroll.frame.width, height: self.BackPScroll.frame.height)
BackPScroll.contentSize.width = BackPScroll.frame.width * CGFloat(i+1)
BackPScroll.addSubview(imageView)
}
// Do any additional setup after loading the view.
}
}

Answer 1

I had the same issue , discovered I had this in the log "The resource could not be loaded because the App Transport Security policy requires the use of a secure connection" .
I fixed it by adding NSAppTransportSecurity as a Dictionary in the info.plist and then I added Allow Arbitrary Loads boolean with YES as a value . It worked instantly.