         
         let animation = lotateAnimation(lotateDuration)
         indicatorView.layer.addAnimation(animation, forKey: Me.LotateAnimationKey)
-        NSNotificationCenter.defaultCenter().addObserver(self, selector: "enterForeground:", name:UIApplicationWillEnterForegroundNotification, object: nil)
         
         strokeTransaction(expand)
         

        anim.repeatCount = HUGE
        anim.fromValue = -(M_PI + M_PI_4)
        anim.toValue = M_PI - M_PI_4
        
        return anim
    }

                }
            }
        }
    }
    
    private func strokeTransaction(expand: Bool) {
