public void on_clicked(View view) {

         Thread webserviceThread = new Thread()

         {

             public void run() {

                 String NAMESPACE = "urn:sap-com:document:sap:rfc:functions";

                 String METHOD_NAME = "ZSAP_ERP_001";

                 String SOAP_ACTION = "urn:sap-com:document:sap:rfc:functions:ZSAP_ERP_001:ZSAP_ERP_001Request";

                 String URL = "http://172.16.1.7:8000//sap/bc/srt/rfc/sap/zsap_erp_001/400/zsap_erp_001/zsap_erp_001";

                 SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);

                 // Set all input params

 //                SoapObject so = new SoapObject("","ET_QMERP");

                 SoapObject so = request.addProperty("ET_QMERP","");

                 SoapObject so1 = new SoapObject("","IT_BUDAT");

                 so1.addProperty("SIGN","I");

                 so1.addProperty("LOW","20161129");

                 so1.addProperty("HIGH","");

                 so1.addProperty("OPTION","EQ");

                 SoapObject so2 = new SoapObject("","IT_EBELN");

                                 so2.addProperty("SIGN","");

                 so2.addProperty("LOW","");

                 so2.addProperty("HIGH","");

                 so2.addProperty("OPTION","");

                 SoapObject so3 = new SoapObject("","IT_LIFNR");

                                 so3.addProperty("SIGN","");

                 so3.addProperty("LOW","");

                 so3.addProperty("HIGH","");

                 so3.addProperty("OPTION","");

                 SoapObject so4 = new SoapObject("","IT_MATNR");

                                 so4.addProperty("SIGN","I");

                 so4.addProperty("LOW","000000164076005800");

                 so4.addProperty("HIGH","");

                 so4.addProperty("OPTION","EQ");

                 request.addSoapObject(so1);

                 request.addSoapObject(so2);

                 request.addSoapObject(so3);

                 request.addSoapObject(so4);

                 SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);

                 // Enable the below property if consuming .Net service

                 envelope.dotNet = false;

                 envelope.setOutputSoapObject(request);

                 HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);

                 try {

                     List<HeaderProperty> headerList = new ArrayList<HeaderProperty>();

                     headerList.add(new HeaderProperty("Authorization", "Basic " + org.kobjects.base64.Base64.encode("at-tanghh:huanhuan".getBytes())));

                     androidHttpTransport.call(SOAP_ACTION, envelope, headerList);

                     SoapObject response = (SoapObject) envelope.getResponse();

                     //response.getProperty(0).toString();

                 } catch (Exception e) {

                     e.printStackTrace();

                 }

             }

         };

         webserviceThread.start();

     }