Android 下载管理器和 SSL (https)
哦，太好了。总有一些其他的东西......呃......
无论如何，所以我日复一日地费力地浏览模糊、不完整和矛盾的 Picasa 信息，以便我的 Android 应用程序可以找到 Picasa 图片并使用下载管理器下载它。所以刚才我做了最后的润色并点击了“运行”按钮。一切都很顺利，直到 DownloadManager 尝试下载文件：
java.lang.IllegalArgumentException: Can only download HTTP URIs: https://example.com/image.jpg
告诉我你在开玩笑。告诉我他们没有制作无法处理 SSL 的下载管理器...
更好的是，告诉我如何在 Android 下载管理器中打开 SSL 访问。
Oh, great. There's always something else that some... Grrr...
Anyway, so I worked days and days wading through vague, incomplete, and contradictory Picasa information so that my Android app could find a Picasa picture and download it using the download manager. So just now I made the finishing touches and hit the "run" button. Everything went fine until DownloadManager tried to download the file:
java.lang.IllegalArgumentException: Can only download HTTP URIs: https://example.com/image.jpg
Tell me you're joking. Tell me they didn't make a download manager that can't handle SSL...
Better yet, tell me how to turn on SSL access in the Android download manager.
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我以前也遇到过同样的问题。是的，我看到 ICS 中已经支持 HTTPS，但 2.3.7 及以下版本中没有，但我们可以提取源代码来创建一个 DownloadManager 来支持它。
基于以下示例代码
http://android-er.blogspot.com/2011 /07/sample-code-using-androidappdownloadman.html
我用提取的 DownloadManager 做了一个演示来支持 HTTPS。
您可以在此处找到示例代码 https://github.com/alvinsj/android-https- downloadmanager-demo，只需将 url 更改为基于 https 的 url 即可运行。
I had the same problem previously. Yup I see HTTPS support is already in ICS, but not in 2.3.7 and below, but we can extract the source code to create a DownloadManager to support that.
Based on the sample code from
http://android-er.blogspot.com/2011/07/sample-code-using-androidappdownloadman.html
i made a demo with extracted DownloadManager to support HTTPS.
You can find the sample code here https://github.com/alvinsj/android-https-downloadmanager-demo, run by just changing the url to your https based url.
是的，
DownloadManager似乎仅支持HTTP协议：http://www.google.com/codesearch#cZwlSNS7aEw/frameworks/base/core/java/android/app/DownloadManager.java&exact_package=android&q=Can%20only%20download%20HTTP% 20URIs&type=cs&l=343我也很失望，因为我只想在 HTTPS 网站上使用它。
Yes it seems that
DownloadManageronly supportsHTTPprotocol: http://www.google.com/codesearch#cZwlSNS7aEw/frameworks/base/core/java/android/app/DownloadManager.java&exact_package=android&q=Can%20only%20download%20HTTP%20URIs&type=cs&l=343I'm disappointed too as I just wanted to use it on a HTTPS site.
我找到了一个非常简单的解决方案：
request = new DownloadManager.Request(sourceUrl.replace("https://", "http://"))令人惊讶的是，适用于所有 https URL我尝试过。我不确定 https 安全性，但没有例外，并且文件可以正确下载。
I've found a very easy solution for this:
request = new DownloadManager.Request(sourceUrl.replace("https://", "http://"))Surprisingly worked for all https URLs that I tried. I'm not sure about the https security, but there is no exception and file gets downloaded properly.