Refresh Control on TableView

You can use the table view's new refreshControl property to set your UIRefreshControl.

 
override func viewDidLoad() {
    super.viewDidLoad()
    
    tableView.delegate = self
    tableView.dataSource = self
    
    refreshControl.addTarget(self, action: #selector(ViewController.refreshData), 
        for: UIControlEvents.valueChanged)
    
    if #available(iOS 10.0, *) {
        tableView.refreshControl = refreshControl
    } else {
        tableView.addSubview(refreshControl)
    }
}

func refreshData() {
    // Refresh data code
    
    tableView.reloadData()
    refreshControl.endRefreshing()
}
 

(Xcode 8, Swift 3.0)