public class DialogUtils {

public static ProgressDialog showProgressDialog(Context context, String message) {
    ProgressDialog m_Dialog = new ProgressDialog(context);
    m_Dialog.setMessage(message);
    m_Dialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
    m_Dialog.setCancelable(false);
    m_Dialog.show();
    return m_Dialog;

}

m_Dialog = DialogUtils.showProgressDialog(getContext(), "Loading...");

        final String m_DealListingURL = "http://202.131.1.132:8080/ireward/rest/json/metallica/getDealListInJSON";
        JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.POST, m_DealListingURL, jsonObject, new Response.Listener<JSONObject>() {
            @Override
            public void onResponse(JSONObject response) {
                Log.i(TAG, "Server Response:-" + response);
                if (m_Dialog != null && m_Dialog.isShowing()) {
                    m_Dialog.dismiss();
                }