Android - Ayuda con SOAP y recogida de ARRAY de WEBSERVER

MainActivity.java

package com.example.ki11z0n3.clientes;

import android.app.Activity;

import android.os.AsyncTask;

import android.os.Bundle;

import android.view.Menu;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.ArrayAdapter;

import android.widget.Button;

import android.widget.ListView;

import android.widget.TextView;

import net.sgoliver.android.soap.R;

import org.ksoap2.SoapEnvelope;

import org.ksoap2.serialization.SoapObject;

import org.ksoap2.serialization.SoapSerializationEnvelope;

import org.ksoap2.transport.HttpTransportSE;

public class MainActivity extends Activity {

    private TextView txtResultado;

    private Button btnConsultar;

    private ListView lstClientes;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        txtResultado = (TextView)findViewById(R.id.txtResultado);

        btnConsultar = (Button)findViewById(R.id.btnConsultar);

        lstClientes = (ListView)findViewById(R.id.lstClientes);

        btnConsultar.setOnClickListener(new OnClickListener() {

            @Override

            public void onClick(View v) {

                TareaWSConsulta tarea = new TareaWSConsulta();

                tarea.execute();

            }

        });

    }

    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

        // Inflate the menu; this adds items to the action bar if it is present.

        getMenuInflater().inflate(R.menu.main, menu);

        return true;

    }

    //Tarea Asíncrona para llamar al WS de consulta en segundo plano

    private class TareaWSConsulta extends AsyncTask<String,Integer,Boolean> {

        private Cliente[] listaClientes;

        protected Boolean doInBackground(String... params) {

            boolean resul = true;

            String NAMESPACE = "http://datagram.es/";

            String URL="http://develop.datagram.es/wsDTG/Service.asmx";

            String METHOD_NAME = "getClientes";

            String SOAP_ACTION = "http://datagram.es/getClientes";

            String token = "VqE9OGko-l-9IKS7oToJxR<>";

            SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);

            request.addProperty("_token", token);

            SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);

            envelope.dotNet = true;

            envelope.setOutputSoapObject(request);

            HttpTransportSE transporte = new HttpTransportSE(URL);

            try

            {

                transporte.call(SOAP_ACTION, envelope);

                SoapObject resSoap =(SoapObject)envelope.bodyIn;

                Cliente[] listaClientes = new Cliente[resSoap.getPropertyCount()];

                for (int i = 0; i < listaClientes.length; i++)

                {

                    SoapObject ic = (SoapObject)resSoap.getProperty(i);

                    Cliente cli = new Cliente();

                    cli.id = Integer.parseInt(ic.getProperty(0).toString());

                    cli.nombre = ic.getProperty(1).toString();

                    listaClientes[i] = cli;

                }

            }

            catch (Exception e)

            {

                resul = false;

            }

            return resul;

        }

        protected void onPostExecute(Boolean result) {

            if (result)

            {

                //Rellenamos la lista con los nombres de los clientes

                final String[] datos = new String[listaClientes.length];

                for(int i=0; i<listaClientes.length; i++)

                    datos[i] = listaClientes[i].nombre;

                ArrayAdapter<String> adaptador =

                        new ArrayAdapter<String>(MainActivity.this,

                                android.R.layout.simple_list_item_1, datos);

                lstClientes.setAdapter(adaptador);

            }

            else

            {

                txtResultado.setText("Error!");

            }

        }

    }

}

package com.example.ki11z0n3.clientes;

import org.ksoap2.serialization.KvmSerializable;

import org.ksoap2.serialization.PropertyInfo;

import java.util.Hashtable;

public class Cliente implements KvmSerializable {

    public int id;

    public String nombre;

    public Cliente()

    {

        id = 0;

        nombre = "";

    }

    public Cliente(int id, String nombre)

    {

        this.id = id;

        this.nombre = nombre;

    }

    @Override

    public Object getProperty(int arg0) {

        switch(arg0)

        {

            case 0:

                return id;

            case 1:

                return nombre;

        }

        return null;

    }

    @Override

    public int getPropertyCount() {

        return 2;

    }

    @Override

    public void getPropertyInfo(int ind, Hashtable ht, PropertyInfo info) {

        switch(ind)

        {

            case 0:

                info.type = PropertyInfo.INTEGER_CLASS;

                info.name = "ID";

                break;

            case 1:

                info.type = PropertyInfo.STRING_CLASS;

                info.name = "ENTIDAD";

                break;

            default:break;

        }

    }

    @Override

    public void setProperty(int ind, Object val) {

        switch(ind)

        {

            case 0:

                id = Integer.parseInt(val.toString());

                break;

            case 1:

                nombre = val.toString();

                break;

            default:

                break;

        }

    }

}

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:paddingBottom="@dimen/activity_vertical_margin"

    android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    android:orientation="vertical"

    tools:context=".MainActivity" >

    <LinearLayout

        android:id="@+id/linearLayout1"

        android:layout_width="match_parent"

        android:layout_height="wrap_content" >

    </LinearLayout>

    <LinearLayout

        android:id="@+id/linearLayout2"

        android:layout_width="match_parent"

        android:layout_height="wrap_content" >

    </LinearLayout>

    <LinearLayout

        android:id="@+id/linearLayout3"

        android:layout_width="match_parent"

        android:layout_height="wrap_content" >

        <Button

            android:id="@+id/btnConsultar"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:text="@string/consultar" />

        <TextView

            android:id="@+id/txtResultado"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:text="" />

    </LinearLayout>

    <ListView

        android:id="@+id/lstClientes"

        android:layout_width="match_parent"

        android:layout_height="wrap_content" >

    </ListView>

</LinearLayout>