@Override protected CommentList doInBackground(Void... args) { if (!hasActivity()) return null; Blog blog = WordPress.getCurrentBlog(); if (blog == null) { isError = true; return null; } // the first time this is called, make sure comments deleted on server are removed // from the local database if (!mHasCheckedDeletedComments && !isLoadingMore) { mHasCheckedDeletedComments = true; ApiHelper.removeDeletedComments(blog); } Map<String, Object> hPost = new HashMap<String, Object>(); if (isLoadingMore) { int numExisting = getCommentAdapter().getCount(); hPost.put("offset", numExisting); hPost.put("number", COMMENTS_PER_PAGE); } else { hPost.put("number", COMMENTS_PER_PAGE); } Object[] params = {blog.getRemoteBlogId(), blog.getUsername(), blog.getPassword(), hPost}; try { return ApiHelper.refreshComments(getActivity(), blog, params); } catch (Exception e) { isError = true; return null; } }