Table header view from .xib

Question

I have a table in which I need to add a title view. I made it in an xib file to configure as I need, but I have problems connecting this view. Tell me what I'm doing wrong!

class HeaderTableView: UITableViewHeaderFooterView {
//I think in this class a mistake

    override init(reuseIdentifier: String?) {
        super.init(reuseIdentifier: reuseIdentifier)
    }

    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

}




 override func viewDidLoad() {
        super.viewDidLoad()

         let nib = UINib(nibName: "HeaderTableView", bundle: nil)
        tableView.register(nib, forHeaderFooterViewReuseIdentifier: "HeaderTableView")
    }


    func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
            let view = self.tableView.dequeueReusableHeaderFooterView(withIdentifier: "HeaderTableView")  as! HeaderTableView

            returnview
        }

Answer 1

So you mentioned you added your Header view in a xib file, as you wanted to design it freely from the Interface Builder.

First thing go to your XIB based Header View (HeaderTableView.xib), in Identity Inspector and put there the class name of your Header View as of HeaderTableView:

Second thing, open your HeaderTableView swift class (in my example this is within ViewController.swift file). To open it in parallel with your already open XIB based file (keep ALT/OPTION key pressed while you click on the swift file containing that class) and link your IBOutlet from InterfaceBuilder to the Swift code like this:

Third, your implementation (for HeaderTableView class) looks good on the swift file, but small adjustments in the HeaderTableView class are needed to make it work from InterfaceBuilder, just to give you an example what I did in my machine to make a simple sample I have this two classes for the TableView UIViewController and the HeaderTableView class (both within ViewController.swift file but you can separate them in two files if needed):

class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource{
    @IBOutlet weak var tableView: UITableView!

    override func viewDidLoad() {
        super.viewDidLoad()

        let nib = UINib(nibName: "HeaderTableView", bundle: nil)
        tableView.register(nib, forHeaderFooterViewReuseIdentifier: "HeaderTableView")
    }

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        10
    }

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        return UITableViewCell()
    }

    func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
        let view = self.tableView.dequeueReusableHeaderFooterView(withIdentifier: "HeaderTableView")  as! HeaderTableView

        return view
    }
}

class HeaderTableView: UITableViewHeaderFooterView {
    @IBOutlet weak var titleLabel: UILabel!

    override func awakeFromNib() {
        super.awakeFromNib()

        titleLabel.text = "Title"
    }

    override init(reuseIdentifier: String?) {
        super.init(reuseIdentifier: reuseIdentifier)
    }

    required init?(coder: NSCoder) {
        super.init(coder: coder)
    }
}

And as a result I have this:

Don't forget in your ViewController InterfaceBuilder to make the tableView as delegate and dataSource (my UIViewController in InterfaceBuilder is within Main.storyboard for example):

1)

2)