It cannot be laid UIRefreshControllat the bottom in a UITableViewmanner similar to placing it on the top. But in any case, you can place everything against the background of the background presentation of the table.
But the solution that I prefer is to load additional elements when the user scrolls to the very bottom of the table. I process it with a method UITableViewControllerDelegate:
func tableView(tableView: UITableView, willDisplayCell cell: UITableViewCell, forRowAtIndexPath indexPath: NSIndexPath) {
if indexPath.row == self.items.count - 1 {
}
}