Android排球登录会话

Question

我正在使用RESTful服务。登录后，我无法使用该应用程序访问其他服务。它说我没有登录。我相信我对HttpClientStack做错了。这是代码..

public class HttpClientStackObject {
    public static DefaultHttpClient httpClient;
    public static HttpClientStack httpClientStack;

    public static HttpClientStack getHttpClientStack() {

        if(httpClientStack == null){
            httpClient = new DefaultHttpClient();
            httpClientStack = new HttpClientStack(httpClient);
        }
        return httpClientStack;
    }
}

Login.java

RequestQueue queue = Volley.newRequestQueue(this, HttpClientStackObject.getHttpClientStack());

jsonObjectRequest = new JsonObjectRequest(
                            Request.Method.POST, URL, jsonOb,
                            new ResponseListener(), new ErrorListener());
                    queue.add(jsonObjectRequest);