Get value from web services C# android ?

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Android

hi all
i retrieve data XML string from c# webservice using android
but how can i get value for each element in XML

this is my output result on android

{"NewNews":1,"name":["werr","we"],"DateUp":["7/1/2019 12:00:00 AM","6/12/2019 12:00:00 AM"]}

What I have tried:

super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();

        StrictMode.setThreadPolicy(policy);
        SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);

        SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
        envelope.dotNet = true;
        envelope.setOutputSoapObject(request);
        HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);

        try {
            androidHttpTransport.call(SOAP_ACTION, envelope);
            SoapPrimitive response = (SoapPrimitive)envelope.getResponse();



            TextView tv = new TextView(this);
            tv.setText(response.toString());
            setContentView(tv);

        } catch (Exception e) {
            e.printStackTrace();
        }