Push segue from Cell doesn't work after click

Question

I have been reading around on various ways to perform segues. I want a push segue from a cell click. I have the segue in the storyboard, so I am not using the didSelectForRow function:

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        guard let selectedRow = self.tableView.indexPathForSelectedRow as? Int else { return }

        if segue.identifier == "detail", let vc = segue.destination as? DetailViewController {
            vc.playerImage = UIImageView(image: UIImage(named: "userIcon"))
            vc.currentRankingLabel.text = String(players[selectedRow].ranking)
            vc.scoreLabel.text = String("\(players[selectedRow].wins) - \(players[selectedRow].losses)")
        }
    }

This is what I have got at the moment. It compiles, but the cell will not react to the click!

Answer 1

indexPathForSelectedRow is never Int, it's IndexPath?. Delete the conditional downcast and get the row from its row property

guard let selectedPath = self.tableView.indexPathForSelectedRow else { return }
let selectedRow = selectedPath.row

if segue.identifier == "detail", let vc = segue.destination as? DetailViewController {
        vc.playerImage = UIImageView(image: UIImage(named: "userIcon"))
        vc.currentRankingLabel.text = String(players[selectedRow].ranking)
        vc.scoreLabel.text = String("\(players[selectedRow].wins) - \(players[selectedRow].losses)")
    }

However if the segue is connected to the cell I recommend to use the sender parameter which represents the cell

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {

     if segue.identifier == "detail", let vc = segue.destination as? DetailViewController {
        let selectedPath = self.tableView.indexPath(for: sender as! UITableViewCell)!
        let selectedRow = selectedPath.row
        vc.playerImage = UIImageView(image: UIImage(named: "userIcon"))
        vc.currentRankingLabel.text = String(players[selectedRow].ranking)
        vc.scoreLabel.text = String("\(players[selectedRow].wins) - \(players[selectedRow].losses)")
     }
}

Important note:

Be aware that the outlets in the destination controller are not connected in prepare(for so nothing will be displayed or the code even crashes.