چگونگی استفاده از ترد هنگام آپلود فایل

سلام دوستان من میخوام یک فایل رو روی سرور آپلود کنم ولی چون با ترد آشنایی نداشتم نمیدونم چطور میتونم این کد رو با استفاده از تردینگ اجرا کنم تا تاخیری در برنامه ام ایجاد نشه. و همچنین هنگام آپلود یک لودینگ هم نمایش داده بشه. لطفا کمکم کنید.

این هم کد:

     public static int upLoad2Server(String sourceFileUri) {
        String upLoadServerUri = "http://mydomain.ir/uploadfile.php";
        String fileName = sourceFileUri;
        HttpURLConnection conn = null;
        DataOutputStream dos = null;
        DataInputStream inStream = null;
        String lineEnd = "\r\n";
        String twoHyphens = "--";
        String boundary = "*****";
        int bytesRead, bytesAvailable, bufferSize;
        byte[] buffer;
        int maxBufferSize = 1 * 1024 * 1024;
        String responseFromServer = "";
        int serverResponseCode = 0;
        File sourceFile = new File(sourceFileUri);
        if ( !sourceFile.isFile()) {
            Log.e("Huzza", "Source File Does not exist");
            return 0;
        }
        try { 
            FileInputStream fileInputStream = new FileInputStream(sourceFile);
            URL url = new URL(upLoadServerUri);
            conn = (HttpURLConnection) url.openConnection(); 
            conn.setDoInput(true); 
            conn.setDoOutput(true); 
            conn.setUseCaches(false); 
            conn.setRequestMethod("POST");
            conn.setRequestProperty("Connection", "Keep-Alive");
            conn.setRequestProperty("ENCTYPE", "multipart/form-data");
            conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);
            conn.setRequestProperty("uploaded_file", fileName);
            dos = new DataOutputStream(conn.getOutputStream());
            dos.writeBytes(twoHyphens + boundary + lineEnd);
            dos.writeBytes("Content-Disposition: form-data; name=\"uploaded_file\";filename=\"" + fileName + "\"" + lineEnd);
            dos.writeBytes(lineEnd);
            bytesAvailable = fileInputStream.available(); // create a buffer of  maximum size
            Log.i("Huzza", "Initial .available : " + bytesAvailable);
            bufferSize = Math.min(bytesAvailable, maxBufferSize);
            buffer = new byte[bufferSize];
            // read file and write it into form...
            bytesRead = fileInputStream.read(buffer, 0, bufferSize);
            while (bytesRead > 0) {
                dos.write(buffer, 0, bufferSize);
                bytesAvailable = fileInputStream.available();
                bufferSize = Math.min(bytesAvailable, maxBufferSize);
                bytesRead = fileInputStream.read(buffer, 0, bufferSize);
            }
            // send multipart form data necesssary after file data...
            dos.writeBytes(lineEnd);
            dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
            // Responses from the server (code and message)
            serverResponseCode = conn.getResponseCode();
            String serverResponseMessage = conn.getResponseMessage();
            Log.i("Upload file to server", "HTTP Response is : " + serverResponseMessage + ": " + serverResponseCode);
            // close streams
            btn_send_file.performClick();
            //Toast.makeText(G.context, "Upload file to server", Toast.LENGTH_LONG).show();
            Log.i("Upload file to server", fileName + " File is written");
            fileInputStream.close();
            dos.flush();
            dos.close();
        }
        catch (MalformedURLException ex) {
            ex.printStackTrace();
            Log.e("Upload file to server", "error: " + ex.getMessage(), ex);
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        //this block will give the response of upload link
        try {
            BufferedReader rd = new BufferedReader(new InputStreamReader(conn
                    .getInputStream()));
            String line;
            while ((line = rd.readLine()) != null) {
                Log.i("Huzza", "RES Message: " + line);
            }
            rd.close();
        }
        catch (IOException ioex) {
            Log.e("Huzza", "error: " + ioex.getMessage(), ioex);
        }
        return serverResponseCode; // like 200 (Ok)

    } // end upLoad2Server