         activityIndicator.center = CGPoint(x: view.bounds.size.width / 2, y: view.bounds.size.height / 2)
         activityIndicator.translatesAutoresizingMaskIntoConstraints = false
         activityIndicator.alpha = 0.0
-        activityIndicator.tag = 9999
+        activityIndicator.tag = 38383
         
         view.addSubview(activityIndicator)
         view.bringSubview(toFront: activityIndicator)

        return activityIndicator
    }
    
    public func end() {
        guard self.tag == 9999 else { return }
        self.superview?.isUserInteractionEnabled = true
        let center: CGPoint = self.center
        UIView.animate(withDuration: 0.2, animations: {() -> Void in

            self.center = center
            }, completion: {(finished: Bool) -> Void in
                self.removeFromSuperview()
                completion?()
        })
    }
}
