Custom Volley Request

CustomRequest.java

public class CustomRequest extends Request<JSONObject> {

    private Response.Listener<JSONObject> listener;
    private Map<String, String> params;
    private ProgressDialog progressDialog;
    private Context context;

    public ProgressDialog getProgressDialog() {
        return progressDialog;
    }

    public void setProgressDialog(ProgressDialog progressDialog) {
        this.progressDialog = progressDialog;
    }

    public Context getContext() {
        return context;
    }

    public void setContext(Context context) {
        this.context = context;
    }

    public CustomRequest(String url, Map<String, String> params,
                         Response.Listener<JSONObject> reponseListener, Response.ErrorListener errorListener) {
        super(Method.POST, url, errorListener);
        this.listener = reponseListener;
        this.params = params;

        LogWrapper.v("Making request to: " + url);
        LogWrapper.v("with params: " + params.toString());

    }

    /*
        takes context and progress bar message
     */
    public CustomRequest(String url, Map<String, String> params,
                         Response.Listener<JSONObject> reponseListener, Response.ErrorListener errorListener, Context context, String message) {
        super(Method.POST, url, errorListener);
        this.listener = reponseListener;
        this.params = params;
        setContext(context);


        if (Utils.isNetworkAvailable(getContext())) {

            if (!ShpUtil.getFromPrefs(getContext(), Var.SHP.SHOWING_LOCK_DIALOG).equals("1")) {
                setProgressDialog(Utils.showProgressDialog(getContext(), message));
            }

            LogWrapper.v("Making request to: " + url);
            LogWrapper.v("with params: " + params.toString());
        } else {
            LogWrapper.v("No Internet connection");

            AlertDialog.Builder builder = new AlertDialog.Builder(getContext()).setTitle("No Internet").setMessage("Please check if you are connected to Internet.").setPositiveButton("OK", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    dialog.cancel();
                }
            });
            builder.create().show();

        }
    }

    public CustomRequest(int method, String url, Map<String, String> params,
                         Response.Listener<JSONObject> reponseListener, Response.ErrorListener errorListener, Context context, String message) {
        super(method, url, errorListener);
        this.listener = reponseListener;
        this.params = params;
        setContext(context);

        if (Utils.isNetworkAvailable(getContext())) {

            if (!ShpUtil.getFromPrefs(getContext(), Var.SHP.SHOWING_LOCK_DIALOG).equals("1")) {
                setProgressDialog(Utils.showProgressDialog(getContext(), message));
            }
            LogWrapper.v("Making request to: " + url);
            LogWrapper.v("with params: " + params.toString());

        } else {
            LogWrapper.v("No Internet connection");

            AlertDialog.Builder builder = new AlertDialog.Builder(getContext()).setTitle("No Internet").setMessage("Please check if you are connected to Internet.").setPositiveButton("OK", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    dialog.cancel();
                }
            });
            builder.create().show();

        }
    }

    protected Map<String, String> getParams()
            throws com.android.volley.AuthFailureError {
        return params;
    }


    @Override
    protected Response<JSONObject> parseNetworkResponse(NetworkResponse response) {

        try {
            getProgressDialog().dismiss();
        } catch (Exception e) {
            e.printStackTrace();
        }

        try {
//            LogWrapper.v(response.data.toString());
            String jsonString = new String(response.data,
                    HttpHeaderParser.parseCharset(response.headers));

            try {
                LogWrapper.v(new JSONObject(jsonString).toString(4));
            } catch (JSONException e) {
                e.printStackTrace();
            }

            return Response.success(new JSONObject(jsonString),
                    HttpHeaderParser.parseCacheHeaders(response));
        } catch (UnsupportedEncodingException e) {
            return Response.error(new ParseError(e));
        } catch (JSONException je) {
            return Response.error(new ParseError(je));
        }
    }

    @Override
    public void deliverError(VolleyError error) {
        super.deliverError(error);
        try {
            getProgressDialog().dismiss();
        } catch (Exception e) {
            e.printStackTrace();
        }


    }


    @Override
    protected void deliverResponse(JSONObject response) {
        // TODO Auto-generated method stub
        String kachra = Html.fromHtml(response.toString()).toString();
        try {
            response = new JSONObject(kachra);
        } catch (JSONException e) {
            e.printStackTrace();
        }
        listener.onResponse(response);
    }
}

CustomVolleyRequest.java

HashMap<String, String> params = new HashMap<String, String>();
		params.put(
				ShPref.USER_UID,
				context.getSharedPreferences(ShPref.USER_UID, 0).getString(
						ShPref.USER_UID, ""));

		CustomRequest jsonArrayRequest = new CustomRequest(Method.POST,
				dataURLs.SHOPPING_PRODUCT_LIST_URL, params,
				new Response.Listener<JSONObject>() {

					@Override
					public void onResponse(JSONObject response) {
						// TODO Auto-generated method stub
						Log.e("Server Response", response.toString() + "");

					}
				}, new Response.ErrorListener() {

					@Override
					public void onErrorResponse(VolleyError error) {
						// TODO Auto-generated method stub

					}
				});
		Log.d("response", jsonArrayRequest.toString());
		AppController.getInstance().addToRequestQueue(jsonArrayRequest);