Using AutoLayout setup UITableView's tableHeaderView

TableHeaderViewWithAutoLayout.swift

override func viewDidLoad() {
	let selfSizingTableHeaderView = SelfSizingTableHeaderView()
	tableView.tableHeaderView = selfSizingTableHeaderView
	selfSizingTableHeaderView.translatesAutoresizingMaskIntoConstraints = false
	NSLayoutConstraint.activate([
		selfSizingTableHeaderView.leadingAnchor.constraint(equalTo: tableView.leadingAnchor),
		selfSizingTableHeaderView.centerXAnchor.constraint(equalTo: tableView.centerXAnchor),
		selfSizingTableHeaderView.topAnchor.constraint(equalTo: tableView.topAnchor)
	])
}

override func viewDidLayoutSubviews() {
	guard let headerView = tableView.tableHeaderView else { return }
        
	let size = headerView.systemLayoutSizeFitting(UIView.layoutFittingCompressedSize)
	if headerView.frame.size.height != size.height {
		headerView.frame.size.height = size.height
		tableView.tableHeaderView = headerView
	}
}