Dynamic UITable header view

dynamic.swift

    override func viewDidLayoutSubviews() {
        super.viewDidLayoutSubviews()
        updateTableViewHeaderHeight()
    }
    
    private func updateTableViewHeaderHeight() {
        guard let headerView = tableView.tableHeaderView else { return }
        /// Get the size that should meet the constraints
        let size = headerView.systemLayoutSizeFitting(UIView.layoutFittingCompressedSize)
        guard size.height != headerView.frame.height else { return }
        headerView.frame.size.height = size.height
        tableView.tableHeaderView = headerView
        tableView.layoutIfNeeded() // make sure to proper layout cells for the new header size.
    }