如何在Alamofire中暂停/恢复/取消我的下载请求 [英] How to pause/resume/cancel my download request in Alamofire

问题描述

我正在使用Alamofire下载文件，但我不知道如何暂停/恢复/取消特定请求。

I am downloading a file using Alamofire download with progress but i have no idea how to pause / resume / cancel the specific request.

@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
}

推荐答案

保留对<$ c中创建的请求的引用$ c> downloadBtnTapped 带有一个属性，并在 pauseBtnTapped 中的该属性上调用 cancel 。

Keep a reference to the request created in downloadBtnTapped with a property, and call cancel on that property in 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()
}

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