如何通过邮件发送在android/data中创建的文件？

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.SEND_SMS" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />

private void sendEmailWithAttachment(String filePath) {
    Intent emailIntent = new Intent(Intent.ACTION_SEND);
    emailIntent.setType("application/octet-stream");
    emailIntent.putExtra(Intent.EXTRA_SUBJECT, "附件邮件");
    emailIntent.putExtra(Intent.EXTRA_TEXT, "这是一个附件邮件，请查收。");
    emailIntent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(new File(filePath)));
    startActivity(Intent.createChooser(emailIntent, "选择邮件客户端"));
}

String filePath = getExternalFilesDir(null).getPath() + "/your_file_name";
sendEmailWithAttachment(filePath);