如何使用Smack了解XMPP openfire中的键入状态

Question

我正在使用Openfire XMPP服务器开发聊天应用程序.我可以在两个用户之间进行文字聊天 但是我想在某人输入消息时知道打字状态.所以我创建了一个类: -

public class typingStatus implements ChatStateListener {

    @Override
    public void processMessage(Chat arg0, Message arg1) {
        // TODO Auto-generated method stub

    }

    @Override
    public void stateChanged(Chat arg0, ChatState arg1) {
        // TODO Auto-generated method stub
        System.out.println(arg0.getParticipant() + " is " + arg1.name());

    }

}

但我很困惑,它将如何运作？我知道我需要一个数据包,我可以在Listener中使用它.但我无法找到该数据包.

请任何人建议,它将如何运作？

还有Smack和asmack有什么区别？

谢谢!

Answer 1

要使ChatStateListener您能够创建自定义MessageListener类

public class MessageListenerImpl implements MessageListener,ChatStateListener  {

    @Override
    public void processMessage(Chat arg0, Message arg1) {
        System.out.println("Received message: " + arg1);

    }

    @Override
    public void stateChanged(Chat arg0, ChatState arg1) {
        if (ChatState.composing.equals(arg1)) {
            Log.d("Chat State",arg0.getParticipant() + " is typing..");
        } else if (ChatState.gone.equals(arg1)) {
            Log.d("Chat State",arg0.getParticipant() + " has left the conversation.");
        } else {
            Log.d("Chat State",arg0.getParticipant() + ": " + arg1.name());
        }

    }

}

然后你创建MessageListener对象

MessageListener messageListener = new MessageListenerImpl();

然后在create chat方法中传递它

Chat newChat = chatmanager.createChat(jabber_id_of_friend, messageListener);

Smack和asmack有什么区别？< - 检查这个

Answer 2

最后我得到了解决方案.我需要使用聊天监听器和聊天管理器,我还需要在内置的sendcomposingnotification函数中使用.无需为此使用Messageeventrequestlistener接口或任何其他自定义类.我添加了以下几行,

connection.getChatManager().addChatListener(new ChatManagerListener() {

            @Override
            public void chatCreated(final Chat arg0, final boolean arg1) {
                // TODO Auto-generated method stub

                arg0.addMessageListener(new MessageListener()
                {

                    @Override
                    public void processMessage(Chat arg0, Message arg1) 
                    {
                        // TODO Auto-generated method stub

                        Log.d("TYpe Stat",title[0] + " is typing......");
                        Toast.makeText(getApplicationContext(),title[0] + " is typing......",Toast.LENGTH_SHORT).show();
                    }



                    }
                }); 
            }
        });

并且还需要发送这样的通知..

mem.sendComposingNotification(etRecipient.getText().toString(), message.getPacketID());
        System.out.println("Sending notification");

其中mem是MessageEventManger的类型.参考:http://www.igniterealtime.org/builds/smack/docs/latest/javadoc/org/jivesoftware/smackx/MessageEventManager.html