public void get_Sync(View view){ // This is a button click
       get_products(order, limit);
    }

    public void get_products(final String order, final int limit){
         ExecutorService mExec = Executors.newSingleThreadExecutor();
         mExec.execute(new Runnable() {
             @Override
             public void run() {
                 try{
                     SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);

                     request.addProperty("order", order);
                     request.addProperty("limit", limit);

                     SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
                     envelope.setOutputSoapObject(request);
                     HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);
                     androidHttpTransport.call(SOAP_ACTION, envelope);

                     SoapObject rep = (SoapObject) envelope.bodyIn;
                     JSONArray jr = new JSONArray(rep.getPropertyAsString(0));

                     for(int i = 0; i <= jr.length() - 1; i++)
                     {
                         JSONObject jb = (JSONObject) jr.get(i);
                         byte[] theImage = jb.getString("image").getBytes();
                         db.add_oc_product(new oc_product(jb.getInt("product_id"), jb.getString("model"), jb.getInt("quantity"),
                                                          theImage);
                     }
                 }catch (Exception e){
                     Log.e("Error:", e.toString());
                 }
             }
         });
     }