セルの挿入

insertCell.swift

    override func viewDidLoad() {
        super.viewDidLoad()
        
        self.timer = NSTimer.scheduledTimerWithTimeInterval(1.0, target: self, selector: #selector(NotificationBoardViewController.timerUpdate(_:)), userInfo: nil, repeats: true)
    }
    
    func timerUpdate(timer: NSTimer) {
        data.append(String(counter))
        let indexPath = NSIndexPath(forRow: counter, inSection: 0)
        newsTable.insertRowsAtIndexPaths([indexPath], withRowAnimation: UITableViewRowAnimation.Automatic)
        counter += 1
    }