How to set the height of table header in UITableView?

Question

I have gone through Apple docs about UITableView class and delegate reference but couldn\'t find the way to set the table header height explicitly.

I set Table cell

Answer 1

If you programatically set the tableHeaderView, then just set it inside viewDidLayoutSubviews.

    override func viewDidLayoutSubviews() {
        super.viewDidLayoutSubviews()
        setupTableViewHeader()
    }

    private func setupTableViewHeader() {
        // Something you do to set it up programatically...
        tableView.tableHeaderView = MyHeaderView.instanceFromNib() 
    }

If you didn't set it programatically, you need to do similar to what @Kris answered based on this link

    override func viewDidLayoutSubviews() {
        super.viewDidLayoutSubviews()
        sizeHeaderToFit()
    }

    private func sizeHeaderToFit() {
        if let headerView = tableView.tableHeaderView {
            headerView.setNeedsLayout()
            headerView.layoutIfNeeded()

            let height = headerView.systemLayoutSizeFitting(UIView.layoutFittingCompressedSize).height
            var frame = headerView.frame
            frame.size.height = height
            headerView.frame = frame

            tableView.tableHeaderView = headerView
        }
    }