خطا در نمایش اکتیوتی بعد از اجرای دستورات وب سرویس

@Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_login);

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

        final EditText txt_username=(EditText)findViewById(R.id.txt_username);

        final EditText txt_password=(EditText)findViewById(R.id.txt_password);

        btn_login.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                if(getDataSql()==1) {

                    Intent intent = new Intent(G.currentactivity, MainActivity.class);

                    //intent.putExtra("NAME_USER", obj3.getProperty("***").toString());

                    // intent.putExtra("USER_ID", obj3.getProperty("***").toString());

                    G.currentactivity.startActivity(intent);

                }

                else{

                    Toast.makeText(G.context,"خطا در اتصال",Toast.LENGTH_LONG).show();

                }

            }

        });

    }

    public int getDataSql()

    {

        int resu=0;

        StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();

        StrictMode.setThreadPolicy(policy);

        final EditText txt_username=(EditText)findViewById(R.id.txt_username);

        final EditText txt_password=(EditText)findViewById(R.id.txt_password);

        SoapObject obj, obj1, obj2, obj3;

        SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);

        //Use this to add parameters

        request.addProperty("***", "***");

        //Declare the version of the SOAP request

        SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);

        envelope.setOutputSoapObject(request);

        envelope.dotNet = true;

        try {

            HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);

            //this is the actual part that will call the webservice

            androidHttpTransport.call(SOAP_ACTION, envelope);

            // Get the SoapResult from the envelope body.

            SoapObject result = (SoapObject) envelope.bodyIn;

            if (result != null)

            {

                //Get the first property and change the label text

                obj = (SoapObject) envelope.getResponse();

                obj1 = (SoapObject) obj.getProperty("diffgram");

                obj2 = (SoapObject) obj1.getProperty("DocumentElement");

                if(obj2.getPropertyCount()>0) {

                    obj3 = (SoapObject) obj2.getProperty(0);

                    resu=1;

                    //Intent intent = new Intent(G.context, MainActivity.class);

                    //intent.putExtra("NAME_USER", obj3.getProperty("***").toString());

                    //intent.putExtra("USER_ID", obj3.getProperty("***").toString());

                    //startActivity(intent);

                }

            }

            else

            {

                resu=0;

            }

        }

        catch (Exception e) {

            resu=0;

        }

        return resu;

    }

این هم خطا

کسی نیست راهنمایی کنه ما رو.