我已经尽可能多地搜索了android的开源代码，但我还没有找到通过2.3 SDK中的DownloadManager进行实际下载的实现。我找到了 DownloadManager 的源代码 和 下载类的源代码，该类具有与 ContentProvider 交互的常量，但我一直无法找到该源代码ContentProvider。
我想找到这个，以便我可以知道实现我自己的下载的好方法，因为我将为我的应用程序使用低于 2.3 的版本。
I've searched through android's open source code as much as I could and I haven't been able to find the implementation to the actual downloading via the DownloadManager in the 2.3 SDK. I have found the source for the DownloadManager and the source for a download class that has constants to interact with the ContentProvider but I haven't been able to find the source for the ContentProvider.
I'm wanting to find this so that I can know a good way to implement a download of my own, since I'll be using a lesser version than 2.3 for my app.
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我能够找到这个 这里。您还可以通过克隆 DownloadProvider 项目并查看项目源来获取该项目代码。 DownloadProvider.java 正是我所寻找的。然而，DownloadThread.java 处理下载实现的核心，所以我建议查看它。
git命令是
I was able to find this here. You can also get the project by cloning the DownloadProvider project and looking at the project source code. The DownloadProvider.java specifically was what I was looking for. However, the DownloadThread.java handles the heart of the download implementation, so I would recommend looking at that.
The git command is