Delete image out of array at given index - ios

Question

I have created and initialized a scrollview that pulls from an array of images. So a user swipes past a photo, then another, and I need to delete the image based on the location of the current image I have created a for loop that deletes the image i-- in the array, but this crashes because I can't delete the i. Is there a way I can accomplish this? Thank you: here is my code
class ViewController: UIViewController {
var imageArray = [UIImage]()
#IBOutlet weak var mainScrollView: UIScrollView!
func scrollViewDidScroll(_ scrollView: UIScrollView) {
for i in 0..<imageArray.count {
if i >= 3 {
imageArray.remove(at: i - 2)
}
}
}
override func viewDidLoad() {
super.viewDidLoad()
mainScrollView.frame = view.frame
imageArray = [#imageLiteral(resourceName: "dubai6"), #imageLiteral(resourceName: "dubai2"), #imageLiteral(resourceName: "dubai7"), #imageLiteral(resourceName: "dubai4"), #imageLiteral(resourceName: "dubai3"), #imageLiteral(resourceName: "dubai5"), #imageLiteral(resourceName: "DigitalDrawingPreview"), #imageLiteral(resourceName: "denarus"), #imageLiteral(resourceName: "dubai1")]
for i in 0..<imageArray.count {
let imageView = UIImageView()
imageView.contentMode = .scaleAspectFit
imageView.image = imageArray[i]
let xPosition = self.view.frame.width * CGFloat(i)
imageView.frame = CGRect(x: xPosition, y: 0, width: self.view.frame.width, height: self.mainScrollView.frame.height)
mainScrollView.contentSize.width = mainScrollView.frame.width * CGFloat(i + 1)
mainScrollView.addSubview(imageView)
}

Answer 1

Rather than using a UIScrollView, I would recommend using a UITableView or UICollectionView. It is very easy to manage the data model and then call table.reloadData().
You would track the scroll position with the ScrollViewDelegate method scrollViewDidScroll(_ scrollView) and force a reload once you've scrolled far enough.