如何在Alamofire中暂停/恢复/取消我的下载请求

我正在下载一个文件使用Alamofire下载进度，但我不知道如何暂停/恢复/取消特定的请求。

@IBAction func downloadBtnTapped() { Alamofire.download(.GET, "http://httpbin.org/stream/100", destination: destination) .progress { (bytesRead, totalBytesRead, totalBytesExpectedToRead) in println(totalBytesRead) } .response { (request, response, _, error) in println(response) } } @IBAction func pauseBtnTapped(sender : UIButton) { // i would like to pause/cancel my download request here } 

Answer 1

请在downloadBtnTapped使用属性保留对创build的请求的引用，并在pauseBtnTapped调用该属性的pauseBtnTapped 。

 var request: Alamofire.Request? @IBAction func downloadBtnTapped() { self.request = Alamofire.download(.GET, "http://httpbin.org/stream/100", destination: destination) } @IBAction func pauseBtnTapped(sender : UIButton) { self.request?.cancel() } 

Answer 2

request.cancel()将取消下载进度。 如果你想暂停和继续，你可以使用：

 var request: Alamofire.Request? @IBAction func downloadBtnTapped() { self.request = Alamofire.download(.GET, "http://yourdownloadlink.com", destination: destination) } @IBAction func pauseBtnTapped(sender : UIButton) { self.request?.suspend() } @IBAction func continueBtnTapped(sender : UIButton) { self.request?.resume() } @IBAction func cancelBtnTapped(sender : UIButton) { self.request?.cancel() }