My Page Control UI is not getting updated?

Question

My page control UI is not getting updated. The page control number is getting updated every time, but it's not being updated in the Page Control UI. I thought maybe using updateCurrentPageDisplay would work, or that was what I was missing, but I just received an error. Here is my code. Am I missing something that's need to update the UI?

@IBOutlet weak var pageControl: UIPageControl!


  override func viewDidLoad() {
    super.viewDidLoad()

collection.delegate = self
collection.dataSource = self

    thisWidth = CGFloat(collection.frame.width)
    pageControl.hidesForSinglePage = true

    pageControl = UIPageControl.appearance()
    pageControl.pageIndicatorTintColor = UIColor.lightGray
    pageControl.currentPageIndicatorTintColor = UIColor.red
    pageControl.numberOfPages = 10
    pageControl.currentPage = 0

  }
    func numberOfSections(in collectionView: UICollectionView) -> Int {
    return 10
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
    return 1
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
  let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) as! CalanderCollectionViewCell

    let imagePath = array[indexPath.section]


    cell.configureCell(properties: imagePath)

    return cell
}

func collectionView(_ collectionView: UICollectionView, willDisplay cell: UICollectionViewCell, forItemAt indexPath: IndexPath) {
    self.pageControl.currentPage = indexPath.section
    print("current page\(pageControl.currentPage)")
    pageControl.updateCurrentPageDisplay()
    print(indexPath.section)
}

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
    thisWidth = CGFloat(collection.frame.width)
    return CGSize(width: thisWidth, height: collection.frame.height)
}

Answer 1

Delete this line:

pageControl = UIPageControl.appearance()