swift - UITableView load more when scrolling to bottom

Question

I would like to load more data and create additional cells when the user scrolls to the bottom of the table. I'm using JSON data and MySql.

func dataJsonFromURL(url:String)->NSArray
{
    if let data = NSData(contentsOfURL: NSURL(string: url)!) {
        return ((try! NSJSONSerialization.JSONObjectWithData(data, options: [])) as! NSArray)
    }
    else{
        return data
    }
}

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
    let cell = tableView.dequeueReusableCellWithIdentifier("NCell", forIndexPath: indexPath) as! TableViewCell22

    cell.backgroundColor = UIColor .clearColor()

    let mindata = (data[indexPath.row] as! NSDictionary)
}

Answer 1

you have to use this method

override func tableView(tableView: UITableView, willDisplayCell cell: UITableViewCell, forRowAtIndexPath indexPath: NSIndexPath) {
            let lastElement = dataSource.count - 1
            if indexPath.row == lastElement {
                // handle your logic here to get more items, add it to dataSource and reload tableview
                }    
        }