很好的一天！所以基本上我创建一个文件，然后通过电子邮件发送，一切正常，但当gmail应用程序打开时，有一条消息“无法附加文件”。请给我任何建议我该怎么办谢谢！我的代码：

File file = new File(Environment.getExternalStoragePublicDirectory("Android/data/app.myapp")+"/", FILE_NAME);

    FileOutputStream outputStream = null;
    try {
        file.createNewFile();

        outputStream = new FileOutputStream(file, true);

        outputStream.write(textToWrite.getBytes());
        outputStream.flush();
        outputStream.close();

    } catch (Exception e) {
        e.printStackTrace();
    }
    if(!file.exists())
    {
        Toast.makeText(  MainActivity.this,"doesnt exist",Toast.LENGTH_SHORT).show();
    }
    if( file.exists())
    {
        Toast.makeText(getBaseContext(), "exist", Toast.LENGTH_LONG).show();
    }

    Intent email = new Intent(Intent.ACTION_SEND);
    email.putExtra(Intent.EXTRA_SUBJECT, "Send Text File");
    email.putExtra(Intent.EXTRA_TEXT,"");
    email.putExtra(Intent.EXTRA_STREAM, Uri.parse("content://" + file.getAbsoluteFile()));
    email.setType("message/rfc822");
    startActivity(Intent.createChooser(email , "Send Text File"));