         NotificationCenter.default.addObserver(self, selector: #selector(deviceDidRotate(_:)), name: UIApplication.didChangeStatusBarOrientationNotification, object: nil)
     }
     
-    @objc func deviceDidRotate(_ aNotifitation: NSNotification) -> Void {
+    @objc private func deviceDidRotate(_ aNotifitation: NSNotification) -> Void {
         dimView?.removeFromSuperview()
         dimView = nil
         show()

        }
        setUp(contentView: contentView, buttonTitles: buttonTitles, cancelButtonIndex: cancelButtonIndex)
    }
    
    
    // MARK: Public Methods
    

    
    // MARK: Actions
    
    @objc private func buttonClicked(_ button: UIButton) {
        if (highlightOnButtonClicked == true) {
            let originColor = button.backgroundColor?.withAlphaComponent(0)
            button.backgroundColor = button.backgroundColor?.withAlphaComponent(0.1)
