ขอถามเรื่องการ ใช้ android เพือ connect กับ web service หน่อยครับ

package app.dbd_app;


import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransportSE;
import org.xmlpull.v1.XmlPullParserException;

import android.os.Bundle;
import android.os.StrictMode;
import android.view.Menu;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.Toast;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;

public class DBD_C_SEARCH extends Activity {
	
	
    
	@SuppressLint("NewApi")
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.dbd_page_search);

		// Permission StrictMode
		if (android.os.Build.VERSION.SDK_INT > 9) {
			StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder()
					.permitAll().build();
			StrictMode.setThreadPolicy(policy);
		}
		

		// btnSearch
		Button btnSearch = (Button) this.findViewById(R.id.DBD_BTD_SEARCH);
		btnSearch.setOnClickListener(new View.OnClickListener() {
			public void onClick(View v) {
				
				// txtKeySearch
				EditText txtKeySearch = (EditText) findViewById(R.id.DBD_ET_SEARCH_NUM);
				
		        // Disbled Keyboard auto focus
		        InputMethodManager imm = (InputMethodManager)getSystemService(
		      	      Context.INPUT_METHOD_SERVICE);
		      	imm.hideSoftInputFromWindow(txtKeySearch.getWindowToken(), 0);
		      	
				
		    	 // listView1
		        final ListView lisView1 = (ListView)findViewById(R.id.DBD_LIST_FOR_SEARCH); 	
				

				SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
				request.addProperty("mid", txtKeySearch.getText().toString());

				SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(
						SoapEnvelope.VER11);

				envelope.setOutputSoapObject(request);
				envelope.dotNet = true;

				HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);

				try {

					androidHttpTransport.call(SOAP_ACTION, envelope);
					SoapObject result = (SoapObject) envelope.bodyIn;

					if (result != null) {
						
						Toast.makeText(getApplicationContext(),
								"Web ssssss not Response!", Toast.LENGTH_LONG)
								.show();
		           
						
						final ArrayList<HashMap<String, String>> MyArrList = new ArrayList<HashMap<String, String>>();
						HashMap<String, String> map;
						
						JSONArray data = new JSONArray(result.getProperty(0).toString());
						
						for(int i = 0; i < data.length(); i++){
			                JSONObject c = data.getJSONObject(i);
			                
			    			map = new HashMap<String, String>();
			    			map.put("CustomerID", c.getString("g_id"));
			    			map.put("Name", c.getString("g_name"));
			    			map.put("Email", c.getString("g_price"));
			    			MyArrList.add(map);
			    			
						}
						
				        SimpleAdapter sAdap;
				        sAdap = new SimpleAdapter(DBD_C_SEARCH.this, MyArrList, R.layout.dbd_column_search,
				                new String[] {"CustomerID", "Name", "Email"}, new int[] {R.id.DBD_COLUMN_IDMEMBER, R.id.DBD_COLUMN_NAMEMEMBER, R.id.DBD_COLUMN_SNAMEMEMBER});      
				        lisView1.setAdapter(sAdap);
				        

					} else {
						Toast.makeText(getApplicationContext(),
								"Web Service not Response!", Toast.LENGTH_LONG)
								.show();
					}

				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				} catch (XmlPullParserException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				} catch (JSONException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}

			}
		});

	}

    
}