小编BRO*_*YUN的帖子

我需要帮助。

我像 tihs 一样使用 sd_setImageWithURL

     self.downloadButton.addTarget(self, action: #selector(self.stopDownloading), forControlEvents: .TouchUpInside)

    self.imageView.sd_setImageWithURL(NSURL(string:myURL!)!, placeholderImage: UIImage(named: "placeHolderImage"), options: SDWebImageOptions.ProgressiveDownload , progress: {
        (receivedSize: Int!, expectedSize: Int!) in

        if(receivedSize > 0 )
        {
            self.percentString = String(format: "%.0f",(Float(receivedSize) / Float(expectedSize) * 100))
            [self.downloadProgress.setProgress(Float(receivedSize) / Float(expectedSize), animated: true)]
            self.downloadStateLabel.text = "\(receivedSize/1000000) / \(expectedSize/1000000)MB (\(self.percentString)%)"
            NSLog("%@", self.percentString)
        }

        }, completed: {
            (image, error, cacheType, url) in
            NSLog("Completed'");

    })

func stopDownloading(sender: AnyObject)
{
    NSLog("stopDownloading Clicked")
    self.imageView.sd_cancelCurrentImageLoad()

}

当我单击按钮时，我可以在 stopDownloading 函数中得到日志“stopDownloading Clicked”，但 sd_cancelCurrentImageLoad() 不起作用。

只要继续下载，我就可以获得已完成的日志。

如何停止下载或取消正在进行的 sd_setImageWithURL ？

谢谢。