[iOS] Slide Down Refresh TableView -- UIRefreshControl

For the table view, you want to slide down the table view to refresh the data of the table view. Maybe you need to add the UIRefreshControl to the TableView.

You can use the UIRefreshControl like this:

func addRefreshControl() {
        refreshControl = UIRefreshControl()
        refreshControl!.addTarget(self, action: "refreshTableView", forControlEvents: UIControlEvents.ValueChanged)
        tableView.addSubview(refreshControl!)
    }
    
func refreshTableView() 
    //Somthing like tableView.reloadData()
}

After reload the data, maybe the refresh view will not be disappeared. Try to end the refreshing of the UIRefreshControl use the code like this:

refreshControl?.endRefreshing()