EditText usuario;
EditText password;
private Button ingresar;

private ProgressDialog pDialog;

String TAG = "Response";

public final int dialogo_alert = 0;
public String msje = "";



@Override
protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_principal);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    usuario = (EditText) findViewById(R.id.usuario);
    password = (EditText) findViewById(R.id.password);
    ingresar = (Button) findViewById(R.id.ingresar);
    ingresar.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            String username = usuario.getText().toString();
            String pass = password.getText().toString();
            new webserv().execute();

        } //fin del click view

    });
}



class webserv extends AsyncTask<String, String, String> {


    public String NAMESPACE = "http://ONControl_MobileWS/";
    public String METHOD_NAME = "Login";
    public String SOAP_ACTION = "http://ONControl_MobileWS/Login";
    public String SOAP_ADDRESS;
    private SoapObject request;
    private HttpTransportSE transporte;
    private SoapSerializationEnvelope envelope;

    @Override
    protected String doInBackground(String... params) {
       Login();
        return null;

    }


    protected void onPreExecute() {

        Log.i(TAG, "onPreExecute");

        pDialog = new ProgressDialog(Principal.this);
        pDialog.setMessage("Iniciando sesion ...");
        pDialog.setIndeterminate(false);
        pDialog.setMax(10);
        pDialog.setCancelable(false);
        pDialog.show();
    }



    protected void onPostExecute(boolean result) {

                if (result){
                    Toast.makeText(Principal.this, "Tarea finalizada!",
                            Toast.LENGTH_SHORT).show();
                }
    }


    public void Login(){
        SOAP_ADDRESS = "http://oncontrol.no-ip.net:9020/ONControl_MobileWS.asmx";
        request = new SoapObject(NAMESPACE, METHOD_NAME);
        PropertyInfo pi= new PropertyInfo();
        envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
        envelope.dotNet = true;
        envelope.setOutputSoapObject(request);
        transporte = new HttpTransportSE(SOAP_ADDRESS);

        request.addProperty("usuario", usuario.getText().toString());
        request.addProperty("password", password.getText().toString());

        try {
            transporte.call(SOAP_ACTION, envelope);

            SoapPrimitive resultado_xml =(SoapPrimitive)envelope.getResponse();
            String res = resultado_xml.toString();
            Principal.this.msje=res;
            // mostramos la respuesta en un toast
            Toast.makeText(Principal.this.getBaseContext(), res,Toast.LENGTH_SHORT).show();

            if(res.equals("Gracias por Iniciar Sesion")){
                Principal.this.usuario.getText().toString();
                Principal.this.usuario.setText("");
                Principal.this.password.setText("");
                //envia al otro activity
                Intent intent=new Intent("android.intent.menu");
                startActivity(intent);
                finish();
            }

        } catch (Exception e) {
            Log.e(TAG, "Error: " + e.getMessage());
        }

    }



}

 //run