无法收到Volley的回复

Question

我有这个代码，它填充了ArrayList（Bitmap）。但我无法收到Volley的回应。我已经放了一些日志来查看问题。我可以看到要运行的最后一个日志是＆＃34;请求已发送＆＃34;。我的清单中有INTERNET权限，链接（IMAGE_LINK）已启动并运行，服务器未关闭。可能是什么问题？

public class GetImages {
private ArrayList<Bitmap> images = new ArrayList<Bitmap>();
private ArrayList<String> links = new ArrayList<String>();
private Context context;
private Handler handler;
private String IMAGE_LINK = "http://10.95.56.134:8084/AppServer/JSON/image_try.json";
public GetImages(Context context, Handler handler)
{
    Log.i("GetImages","Reached");
    this.handler = handler;
    this.context = context;
    prepareImages();
}
public ArrayList<Bitmap> getImages()
{
    return images;
}
public void prepareImages()
{
    RequestQueue queue = VolleySingleton.getInstance(context)
            .getRequestQueue();
    JsonObjectRequest request = new JsonObjectRequest(
            Request.Method.GET, IMAGE_LINK, null,
            new Response.Listener<JSONObject>() {

                @Override
                public void onResponse(JSONObject json) {
                    try {
                        Log.i("Response","Received");
                        Integer total = Integer.parseInt(json.getString("total"));
                        Log.i("Total",String.valueOf(total));
                        for(int i = 0 ; i < total ; i ++)
                            {
                             links.add(json.getString("image"+(i+1)));
                             Log.i("Link "+i,links.get(links.size()-1));
                            }
                        getBitmap(total);

                    } catch (JSONException e) {
                        Log.i("Error Here",e.toString());
                        e.printStackTrace();
                    }

                }
            }, new Response.ErrorListener() {

                @Override
                public void onErrorResponse(VolleyError arg0) {
                    Log.i("Error",arg0.toString());
                }
            });
    Log.i("Request","sent");
    queue.add(request);
}
private void getBitmap(int total)
{
    Log.i("Reached","here");
    URL url = null;
    HttpGet httpRequest = null;
    HttpResponse response = null;
    for(int j = 0 ; j < total ; j ++)
    {

        try {
            url = new URL(links.get(j));

            httpRequest = new HttpGet(url.toURI());

        HttpClient httpclient = new DefaultHttpClient();


            response = (HttpResponse) httpclient.execute(httpRequest);

        HttpEntity entity = response.getEntity();
        InputStream input = null;

            input = entity.getContent();

        Bitmap bitmap = BitmapFactory.decodeStream(input);
        images.add(bitmap);
    }
    catch(Exception e) { Log.e("MyException",e.toString()); }
}
    handler.sendEmptyMessage(0);
e}}