void updateData(List<ConversationStatus> statusList) {
        Collections.sort(statusList);

        for (ConversationStatus status:statusList) {
            prepareData(status);
        }

        ConversationDiffUtilCallback diffCallback = new ConversationDiffUtilCallback(chatDialogList, statusList);
        DiffUtil.DiffResult diffResult = DiffUtil.calculateDiff(diffCallback, true);

        chatDialogList.removeAll(statusList);
        chatDialogList.addAll(statusList);
        Collections.sort(chatDialogList);

        diffResult.dispatchUpdatesTo(this);
    }