Here the code:
let url = NSURL(string: "http://a337.phobos.apple.com/us/r30/Music/d5/a8/6b/mzi.msfqeogi.aac.p.m4a") let downloadTask = self.downloadSession.downloadTaskWithURL(url!) downloadTask.resume() -> OK
-> it doesn't work; nothing happens
By default starting in iOS 9 all connections must be https. If the website for the second URL doesn't support https:// then the download would fail.
I suggest checking the error code you get back from the Download
If you want to use url with HTTP connection, then in your info.plist file add the following App Transport Security Setting and in that add subsection Allow Arbitrary Loads and set the value to YES.
Please add in Plist
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>NSAllowsArbitraryLoads</key> <true/> <key>NSExceptionDomains</key> <dict> <key>akamaihd.net</key> <dict> <key>NSExceptionRequiresForwardSecrecy</key> <false/> <key>NSIncludesSubdomains</key> <true/> </dict> <key>facebook.com</key> <dict> <key>NSExceptionAllowsInsecureHTTPLoads</key> <true/> <key>NSExceptionRequiresForwardSecrecy</key> <false/> <key>NSIncludesSubdomains</key> <true/> </dict> <key>fbcdn.net</key> <dict> <key>NSExceptionRequiresForwardSecrecy</key> <false/> <key>NSIncludesSubdomains</key> <true/> </dict> <key>graph.facebook.com</key> <dict> <key>NSExceptionAllowsInsecureHTTPLoads</key> <true/> <key>NSExceptionRequiresForwardSecrecy</key> <false/> <key>NSIncludesSubdomains</key> <true/> </dict> </dict> </dict> </plist> Then using Alamofire 4.0 Swift 3.0
Using below method, you can download any thing, ex. PDF
// Mark:- Download File func DownloadFile(strFileUrl : String, strFileName : String, success:@escaping (_ strResultURL: String) -> Void , failure:@escaping (_ responseObject:AnyObject) -> Void) { let destination: DownloadRequest.DownloadFileDestination = { _, _ in let documentsURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0] let fileURL = documentsURL.appendingPathComponent("\(strFileName)") return (fileURL, [.removePreviousFile, .createIntermediateDirectories]) } Alamofire.download(strFileUrl, to: destination).response { response in if SVProgressHUD.isVisible() { SVProgressHUD.dismiss() } if response.error == nil { success("\(response.destinationURL!)") } else { failure(response.error as AnyObject) } }.downloadProgress { (progress) in print("Download Progress: \(progress.fractionCompleted)") SVProgressHUD.showProgress(Float(progress.fractionCompleted), status: AppAlertMsg.KDownloadingPDFs) } } 