# 程序包 com.aliyun.downloader

- 接口概要
  接口 | 说明
  --- | ---
  AliMediaDownloader.ConvertURLCallback | Convert a specified URL before downloading the relevant media file.
  AliMediaDownloader.OnCompletionListener | The download completion callback.
  AliMediaDownloader.OnErrorListener | Error callback.
  AliMediaDownloader.OnPreparedListener | The download preparation success callback.
  AliMediaDownloader.OnProgressListener | The download progress callback.

- 类概要
  类 | 说明
  --- | ---
  AliDownloaderFactory |
  AliMediaDownloader |
  DownloaderConfig |