(Android) - จะset publishProgress AsyncTask ดึง Webservices Json ยังไงครับ??

@Override
	protected String doInBackground(String... params) {
		String strJSON = "";
		
		
		try {
			

			SoapObject request = new SoapObject(NAMESPACE, params[0]);

			Iterator<String> it = mData.keySet().iterator();
			while (it.hasNext()) {
				String key = it.next();
				request.addProperty(key,mData.get(key));
			}   

			SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(
					SoapEnvelope.VER11);
			envelope.dotNet = true;
			envelope.encodingStyle = SoapSerializationEnvelope.XSD;
			envelope.setOutputSoapObject(request);

			@SuppressWarnings("deprecation")
			HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);
			SOAP_ACTION = "http://tempuri.org/"+params[0];
			androidHttpTransport.call(SOAP_ACTION, envelope);

			resultString = (Object) envelope.getResponse();
			strJSON = resultString.toString();

		} catch (Exception e) {
		
			e.printStackTrace();
			//delegate.Failed(tag,e.getMessage());
		}
	
		return strJSON;
	}