[Swift] value of central labelview not updated in progressChangedBlock

[zyqu1990]

Nice project!

I am integrating UAProgressView in my project written in swift. I tried to update the value of the current progress as follows:

override func awakeFromNib() {
    super.awakeFromNib()
    self.progressView.borderWidth = 2.0
    self.progressView.lineWidth = 8.0
    self.progressView.fillOnTouch = false
    self.progressView.animationDuration = 2.0

    self.textLabel = UILabel(frame: CGRectMake(0, 0, 60.0, 32.0))
    self.textLabel.font = UIFont(name: "HelveticaNeue-UltraLight", size: 22)
    self.textLabel.textAlignment = NSTextAlignment.Center
    self.textLabel.textColor = self.progressView.tintColor
    self.textLabel.backgroundColor = UIColor.clearColor()
    self.progressView.centralView = self.textLabel



    self.progressView.progressChangedBlock = { (progressView:UAProgressView!,  progress:Float) -> () in
        let lableview = progressView.centralView as! UILabel
        lableview.text = StringManager.float2str(progress*100)
        println("Current progress")
        println(progress)
    }  
} 

But the block is invoked only once as in the main code:

self.scoreshareview.setViewProgress(StringManager.str2float(score))

function setViewProgress:

func setViewProgress(score:Float){
    self.progressView.setProgress(score/100, animated: true)
}

I am new to iOS and not sure where the problem is.

Thanks for sharing!