public static void postNewComment(Context context,final UserAccount userAccount,final String comment,final int blogId,final int postId){    mPostCommentResponse.requestStarted();    RequestQueue queue = Volley.newRequestQueue(context);    StringRequest sr = new StringRequest(Request.Method.POST,"http://api.someservice.com/post/comment", new Response.Listener
     
      () {        @Override        public void onResponse(String response) {            mPostCommentResponse.requestCompleted();        }    }, new Response.ErrorListener() {        @Override        public void onErrorResponse(VolleyError error) {            mPostCommentResponse.requestEndedWithError(error);        }    }){        @Override        protected Map
      
        getParams(){            Map
       
         params = new HashMap
        
         ();            params.put("user",userAccount.getUsername());            params.put("pass",userAccount.getPassword());            params.put("comment", Uri.encode(comment));            params.put("comment_post_ID",String.valueOf(postId));            params.put("blogId",String.valueOf(blogId));             return params;        }         @Override        public Map
         
           getHeaders() throws AuthFailureError {            Map
          
            params = new HashMap
           
            (); params.put("Content-Type","application/x-www-form-urlencoded"); return params; } }; queue.add(sr);} public interface PostCommentResponseListener { public void requestStarted(); public void requestCompleted(); public void requestEndedWithError(VolleyError error);}