Method to get an index path for UICollectionView supplementary view

gistfile1.txt

extension UICollectionView {
  func indexPath(for supplementaryView: UICollectionReusableView?, ofKind kind: String = UICollectionView.elementKindSectionHeader) -> IndexPath? {
    let elements = visibleSupplementaryViews(ofKind: kind)
    let indexPaths = indexPathsForVisibleSupplementaryElements(ofKind: kind)
    
    for (element, indexPath) in zip(elements, indexPaths) {
      if element === supplementaryView {
        return indexPath
      }
    }
    
    return nil
  }
}

Awesome! Thanks for saving my day 🙏