在EXTRA_STREAM中传递的内容URI似乎对“收件人：”电子邮件栏位

问题描述

我正在缓存目录中创建一个文件，希望与他人共享（通过Gmail / WhatsApp等）。我可以使用FileProvider来做到这一点，并且对于WhatsApp来说效果很好。选择在Gmail上共享时，照片已正确附加，但我通过Intent.EXTRA_STREAM传递的Uri最终也被Gmail解析为新撰写的电子邮件的收件人：字段中的地址，以及该地址（ es），我是通过Intent.EXTRA_EMAIL传递的。

I am creating a file in the cache directory that I'd like to share with others (via Gmail / WhatsApp etc). I am able to do this using FileProvider, and it works OK for WhatsApp. When choosing to share on Gmail the photo is correctly attached, but the Uri that I pass via Intent.EXTRA_STREAM also ends up being parsed by Gmail as an address in the "To:" field of the newly composed email, along with the address(es) that I pass via Intent.EXTRA_EMAIL.

因此，要求用户在发送之前删除虚假（Uri）电子邮件地址。知道如何防止这种情况发生吗？

So the user is required to delete the bogus (Uri) email address before sending. Any idea how to prevent this from happening?

Uri contentUri = FileProvider.getUriForFile(getActivity(), "com.mypackage.fileprovider", cacheFile);

Intent intent = new Intent(Intent.ACTION_SEND);
intent.setDataAndType(contentUri, "image/jpeg");
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
intent.putExtra(Intent.EXTRA_EMAIL, new String[] {"[email protected]"});
intent.putExtra(Intent.EXTRA_SUBJECT, "Photo");
intent.putExtra(Intent.EXTRA_TEXT, "Check out this photo");
intent.putExtra(Intent.EXTRA_STREAM, contentUri);

if(intent.resolveActivity(getActivity().getPackageManager()) != null)
{
    startActivity(Intent.createChooser(intent, getString(R.string.share_file)));
}

推荐答案

替换：

intent.setDataAndType(contentUri, "image/jpeg");

具有：

intent.setType("image/jpeg");

您的问题不是 EXTRA_STREAM ，而是您将 Uri 放入 Intent 的数据方面。

Your problem is not EXTRA_STREAM, but rather that you are putting the Uri in the Intent's data facet.

此外，如果您的 minSdkVersion 低于21，则需要使用，如 Intent 标志在早期版本的Android上不会自动应用于 EXTRA_STREAM 。

Also, if your minSdkVersion is below 21, you will need to take some extra steps to ensure that clients can read the content, as the Intent flag is not applied to EXTRA_STREAM automatically on earlier versions of Android.

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