How to add message from service?

[lucasjinreal]

I have a live service which listening to new message, I want add this new message to SlyceFragment, I am using this:

public void addNewMessageToChat(Message message) {
        DebugHelper.LogMessage("接收到了消息啊，", "chat");
        messages.add(message);
        slyceMessagingFragment.addNewMessages(messages);
    }

whatever I try it not add message except I add messages in onCreate method. Any suggestion about this?