如何在Swift 3.0中使用SDWebImage完成块？ [英] How to use completion block using SDWebImage in Swift 3.0?

问题描述

使用 SDWebImage 下载图片。如果成功下载图像，我想进一步操作。

Am using SDWebImage to download image. I want to do further operation if image is downloaded successfully.

cell.appIcon.sd_setImage(with: url, placeholderImage: UIImage.init(named: "App-Default"), completed: {(image: UIImage!, error: NSError!, cacheType: SDImageCacheType, imageURL: URL!) -> Void in
      // Perform operation. 
})

但我收到错误：

无法将类型'（UIImage！，NSError！，SDImageCacheType，URL！） - > Void'的值转换为预期的参数类型'SDExternalCompletionBlock？'

Cannot convert value of type '(UIImage!, NSError!, SDImageCacheType, URL!) -> Void' to expected argument type 'SDExternalCompletionBlock?'

推荐答案

终于解决了。

cell.appIcon.sd_setImage(with: url!, placeholderImage: UIImage(named: "App-Default"),options: SDWebImageOptions(rawValue: 0), completed: { (image, error, cacheType, imageURL) in
 // Perform operation.
}) 

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