extension UIViewController{
func drawHorizontalStrip(color : CGColor){
        let rect = CGRect(x: 0, y: 0, width: self.view.frame.width, height: 2)
        let lineStripView = UIView(frame: rect)
        lineStripView.layer.borderWidth = 1.0
        lineStripView.layer.borderColor = color
        self.view.addSubview(lineStripView)
    }
}

if (delegate.networkStatus != Reachability.NetworkStatus.notReachable)
        {
            drawHorizontalStrip(color: UIColor.green.cgColor)
        }
        else
        {
            drawHorizontalStrip(color: UIColor.red.cgColor)
            let nc = NotificationCenter.default
            nc.post(name:CONNECTIVITY_NOTIFICATION,
                    object: nil,
                    userInfo: ["message":"Connectivity Lost", "date":Date()])

        }