     self.progressArea.addSubview(self.circleProgress!)
     self.progressLabel = UILabel(frame: CGRect(x: 0, y: 0, width: 100, height: 100))
     self.progressLabel.textAlignment = .center
-    self.progressLabel.center = CGPoint(x: self.circleProgress.bounds.width * 0.5, y: self.circleProgress.bounds.height * 0.5)
     self.circleProgress.addSubview(self.progressLabel)
   }
   

  
  override func viewDidLayoutSubviews() {
    super.viewDidLayoutSubviews()
    self.circleSlider.frame = self.sliderArea.bounds
    self.circleProgress.frame = self.progressArea.bounds
  }
  
  private func buildCircleSlider() {

    self.sliderArea.addSubview(self.circleSlider!)
    self.valueLabel = UILabel(frame: CGRect(x: 0, y: 0, width: 100, height: 100))
    self.valueLabel.textAlignment = .center
    self.circleSlider.addSubview(self.valueLabel)
  }
  
