Why am I getting the error 'Type 'PublicTableViewController' has no member 'handleRefresh''

Question

I am trying to implement pull to reload for my UITableViewController in swift here is my code:

class PublicTableViewController: UITableViewController{
    override func viewDidLoad(){
        super.viewDidLoad()
        ...

        self.refreshControl?.addTarget(self, action: #selector(PublicTableViewController.handleRefresh(_:)), for: UIControl.Event.valueChanged)
    }

    func handleRefresh(refreshControl: UIRefreshControl) {
        self.tableView.reloadData()
        refreshControl.endRefreshing()
    }
    ...
}

But when I build this I get the error that Type 'PublicTableViewController' has no member 'handleRefresh'' and I do not understand why.

Answer 1

change like this.

class PublicTableViewController: UITableViewController{
    override func viewDidLoad(){
        super.viewDidLoad()
        ...

        self.refreshControl?.addTarget(self, action: #selector(self.handleRefresh()), for: UIControl.Event.valueChanged)
    }

   @objc func handleRefresh() {
        self.tableView.reloadData()
    }
}

you must add @objc to a method sing to adopt #selector.