                 if position == 0 {
                     self.MenuRootViewController.view.hidden = true
                     self.shadowLayer.hidden = true
+                    self.contentMaskView.userInteractionEnabled = true
                 }
         })
     }

        if position != 0 {
            MenuRootViewController.view.hidden = false
            shadowLayer.hidden = false
        }
        UIView.animateWithDuration(
            self.springDampingTransformDuration,

            
            MenuRootViewController.view.hidden = false
            shadowLayer.hidden = false
            contentMaskView.userInteractionEnabled = false
            sender.setTranslation(CGPointMake(contentContainerView.transform.tx, 0), inView: view)
        case UIGestureRecognizerState.Changed:
            
