gistfile1.swift

override func prepareForSegue(segue: UIStoryboardSegue!, sender: AnyObject!) {
    
    var detailViewContoller: UIViewController?
    
    if (segue.identifier == "ShowDetail") {
        detailViewContoller = segue.destinationViewController as? UIViewController
    } else if (segue.identifier == "ShowDetailWithNavigationController") {
        let navigationController = segue.destinationViewController as UINavigationController
        detailViewContoller = navigationController.viewControllers[0] as? UIViewController
    }
    
    if let dvc = detailViewContoller {
        dvc.title = "\(NSDate().description)"
    }
    
}