内部存储的电子邮件 [英] Email from internal storage

问题描述

在我的应用程序中，我将文件写入内部存储，如 android开发者。然后我希望通过电子邮件将我写入的文件写入内部存储。这是我的代码和我得到的错误，任何帮助将不胜感激。

On my application I write a file to the internal storage as covered on android developer. Then later on I wish to email the file I wrote into the internal storage. Here is my code and the error I am getting, any help will be appreciated.

FileOutputStream fos = openFileOutput(xmlFilename, MODE_PRIVATE);
fos.write(xml.getBytes());
fos.close();
Intent intent = new Intent(android.content.Intent.ACTION_SEND);
intent.setType("text/plain");
...
Uri uri = Uri.fromFile(new File(xmlFilename));
intent.putExtra(android.content.Intent.EXTRA_STREAM, uri);
startActivity(Intent.createChooser(intent, "Send eMail.."));

错误是

file：//附件路径必须指向file：// mnt / sdcard。忽略附件文件：// ...

file:// attachment path must point to file://mnt/sdcard. Ignoring attachment file://...

推荐答案

我想你可能已经发现了一个bug （或至少不必要的限制）在Android的Gmail客户端。我能够解决这个问题，但是它实际上与我一样，而且需要更多的工作便于携带：

I think you may have found a bug (or at least unnecessary limitation) in the android Gmail client. I was able to work around it, but it strikes me as too implementation specific, and would need a little more work to be portable:

第一个CommonsWare是非常正确的需要使文件可读：

First CommonsWare is very much correct about needing to make the file world readable:

fos = openFileOutput(xmlFilename, MODE_WORLD_READABLE);

接下来，我们需要解决Gmail对/ mnt / sdcard的坚持（或实现特定的等价物？ ）路径：

Next, we need to work around Gmail's insistence on the /mnt/sdcard (or implementation specific equivalent?) path:

Uri uri = Uri.fromFile(new File("/mnt/sdcard/../.."+getFilesDir()+"/"+xmlFilename));

至少在我修改过的Gingerbread设备上，这是让我从私人存储到我自己的附件，并在收到时使用预览按钮查看内容。但是，我不会非常好，要做到这一点，使其工作，谁知道会发生什么与另一个版本的Gmail或另一个电子邮件客户端或手机挂载外部存储在其他地方。

At least on my modified Gingerbread device, this is letting me Gmail an attachment from private storage to myself, and see the contents using the preview button when I receive it. But I don't feel very "good" about having to do this to make it work, and who knows what would happen with another version of Gmail or another email client or a phone which mounts the external storage elsewhere.

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