Swift - how to make custom header for UITableView?

The best working Solution of adding Custom header view in UITableView for section in swift 4 is --

#1 first Use method ViewForHeaderInSection as below -

func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
        let headerView = UIView.init(frame: CGRect.init(x: 0, y: 0, width: tableView.frame.width, height: 50))
        
        let label = UILabel()
        label.frame = CGRect.init(x: 5, y: 5, width: headerView.frame.width-10, height: headerView.frame.height-10)
        label.text = "Notification Times"
        label.font = .systemFont(ofSize: 16)
        label.textColor = .yellow
        
        headerView.addSubview(label)
        
        return headerView
    }

#2 Also Don't forget to set Height of the header using heightForHeaderInSection UITableView method -

func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
        return 50
    }

and you're all set 🎉 🎉 🎉

If you are using custom cell as header, add the following.

func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {

        let headerView = UIView()
        let headerCell = tableView.dequeueReusableCell(withIdentifier: "customTableCell") as! CustomTableCell
        headerView.addSubview(headerCell)
        return headerView
    }

If you want to have simple view, add the following.

func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let headerView:UIView =  UIView()
    return headerView
}

Did you set the section header height in the viewDidLoad?

self.tableView.sectionHeaderHeight = 70

Plus you should replace

self.view.addSubview(view)

by

view.addSubview(label)

Finally you have to check your frames

let view = UIView(frame: CGRect.zeroRect)

and eventually the desired text color as it seems to be currently white on white.