Question

我正在尝试使用它的徽标从我的应用程序发送电子邮件但是当我以字符串格式（应该是png）附件时收到电子邮件我的代码：

    Intent intent = new Intent(Intent.ACTION_SEND);
    intent.setType("application/image");

    intent.putExtra(Intent.EXTRA_SUBJECT, subject);
    intent.putExtra(Intent.EXTRA_TEXT, getString(R.string.fb_share_description));
    intent.putExtra(Intent.EXTRA_STREAM, Uri.parse("android.resource://my.package/" + R.drawable.ic_launcher));
   Intent chooser = Intent.createChooser(intent, "share");
   startActivity(chooser);

我该怎么办？

Answer 1

您无法通过内部资源将文件附加到电子邮件中。您必须先将其复制到存储的常用区域，如SD卡。

InputStream in = null;
OutputStream out = null;
try {
    in = getResources().openRawResource(R.drawable.ic_launcher);
    out = new FileOutputStream(new File(Environment.getExternalStorageDirectory(), "image.png"));
    copyFile(in, out);
    in.close();
    in = null;
    out.flush();
    out.close();
    out = null;
} catch (Exception e) {
    Log.e("tag", e.getMessage());
    e.printStackTrace();
}


private void copyFile(InputStream in, OutputStream out) throws IOException {
    byte[] buffer = new byte[1024];
    int read;
    while ((read = in.read(buffer)) != -1) {
        out.write(buffer, 0, read);
    }
}

//Send the file
Intent emailIntent = new Intent(Intent.ACTION_SEND);
emailIntent.setType("text/html");
emailIntent.putExtra(Intent.EXTRA_SUBJECT, "File attached");
Uri uri = Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "image.png"));
emailIntent.putExtra(Intent.EXTRA_STREAM, uri);
startActivity(Intent.createChooser(emailIntent, "Send mail..."));

这是必需的，因为与您的应用捆绑在一起的资源是只读的，并且沙箱化到您的应用程序。电子邮件客户端收到的URI是无法访问的URI。

Android将图片附加到电子邮件不起作用

1 个答案: