import UIKit

class LoadingScreen: UIViewController {


    var time : Float = 0.0
    var timer: NSTimer?

    @IBOutlet weak var progressView: UIProgressView!


    override func viewDidLoad() {
        super.viewDidLoad()

// Do stuff

timer = NSTimer.scheduledTimerWithTimeInterval(0.1, target: self, selector:Selector("setProgress"), userInfo: nil, repeats: true)

}//close viewDidLoad

  func setProgress() {
        time += 0.1
        progressView.progress = time / 3
        if time >= 3 {
            timer!.invalidate()
        }
    }

}

override func viewDidAppear(animated: Bool)
{
    super.viewDidAppear(animated)

    UIView.animateWithDuration(3, animations: { () -> Void in
        self.progressView.setProgress(1.0, animated: true)
    })
}

func setProgress() {
    time += 0.1
    progressView.setProgress(time / 3, animated: true)
    if time >= 3 {
        timer!.invalidate()
    }
}

timer = NSTimer.scheduledTimerWithTimeInterval(0.001, target: self, selector:Selector("setProgress"), userInfo: nil, repeats: true)

func setProgress() {
    time += 0.001
    progressView.setProgress(time / 3, animated: true)
    if time >= 3 {
        timer!.invalidate()
    }
}

timer = Timer.scheduledTimer(timeInterval: 0.001, target: self, selector: #selector(setProgress), userInfo: nil, repeats: true)

func setProgress() {
        time += 0.001
        downloadProgressBar.setProgress(time / 3, animated: true)
        if time >= 3 {
            self.time = 0.001
            downloadProgressBar.progress = 0
            let color = self.downloadProgressBar.progressTintColor
            self.downloadProgressBar.progressTintColor = self.downloadProgressBar.trackTintColor
            self.downloadProgressBar.trackTintColor = color
        }