get progress from dataTaskWithURL in swift

Question

Is there any way to get progress from dataTaskWithURL in swift while the data is downloading?

NSURLSession.sharedSession().dataTaskWithURL(...)         


        

Answer 1

in class declare

class AudioPlayerViewController: UIViewController, URLSessionDelegate, URLSessionDataDelegate, URLSessionDownloadDelegate{


         var defaultSession: URLSession!
         var downloadTask: URLSessionDownloadTask!

in download method

            defaultSession = Foundation.URLSession(configuration: .default, delegate: self, delegateQueue: nil)
            downloadProgress.setProgress(0.0, animated: false)
            downloadTask = defaultSession.downloadTask(with: audioUrl)
            downloadTask.Resume()

And add following delegates:

func urlSession(_ session: URLSession, downloadTask: URLSessionDownloadTask, didWriteData bytesWritten: Int64, totalBytesWritten: Int64, totalBytesExpectedToWrite: Int64) {

    DispatchQueue.main.async {
        self.downloadProgressBar.setProgress(Float(totalBytesWritten)/Float(totalBytesExpectedToWrite), animated: true)
    }
}

func urlSession(_ session: URLSession, downloadTask: URLSessionDownloadTask, didFinishDownloadingTo location: URL) {
        DispatchQueue.main.async {

//DOWNLOAD SUCCESSFUL AND FILE PATH WILL BE IN URL.

}
}