我正在尝试使用Alamofire下载文件。为了显示进度,我正在使用alamofire的downloadProgress。我从中获得了进度百分比。但我需要显示到目前为止下载的总Mb / Kb以及估计的剩余时间。这是我的代码:
AF.download("http://ipv4.download.thinkbroadband.com/200MB.zip",
method: .get,
parameters: nil,
encoding: URLEncoding.default,
headers: nil,
interceptor:nil,
to: destination)
.downloadProgress { progress in
self.postProgress(progress: progress)
}
.responseData { response in
if let data = response.result.value {
// let image = UIImage(data: data)
}
}
使用通知发布进度
func postProgress(progress: Progress) {
NotificationCenter.default.post(name: .DownloadProgress, object: progress)
}
使用以下代码显示我的进度
if let progress = notification.object as? Progress {
progressBar.setProgress(Float(progress.fractionCompleted), animated: true)
progressInNumberView.text = "\(Int64(progress.fractionCompleted*100))%"
remianingView.text = "\(progress.fileCompletedCount) / \(progress.fileTotalCount)"
if let estimatedTimeRemaining = progress.estimatedTimeRemaining {
remianingView.text = format(estimatedTimeRemaining)
}
}
我正在进步.fraction完美完成。但progress.estimatedTimeRemaining,progress.fileCompletedCount和progress.fileTotalCount始终为nil。