asmack中如何接收离线消息

1）smack中登陆：Establishing a Connection

// Create a connection to the jabber.org server.
Connection conn1 = new XMPPConnection("jabber.org");
conn1.connect();

// Create a connection to the jabber.org server on a specific port.
ConnectionConfiguration config = new ConnectionConfiguration("jabber.org", 5222);
Connection conn2 = new XMPPConnection(config);
conn2.connect();

2）smack中消息的处理见：Messaging using Chats

// Assume we've created a Connection name "connection".
ChatManager chatmanager = connection.getChatManager();
Chat newChat = chatmanager.createChat("jsmith@jivesoftware.com", new MessageListener() {
    public void processMessage(Chat chat, Message message) {
        System.out.println("Received message: " + message);
    }
});

try {
    newChat.sendMessage("Howdy!");
}
catch (XMPPException e) {
    System.out.println("Error Delivering block");
}

 

3 asmack android offline message的处理

从这里可以找到答案，Getting offline messages in android chat appplication with use of asmack library

PacketFilter filter =newMessageTypeFilter(Message.Type.chat);
        this.connection.addPacketListener(newPacketListener(){
            publicvoid processPacket(Packet packet){

                Message message =(Message) packet;
                if(message.getBody()!=null){
                    String fromName =StringUtils.parseBareAddress(message
                            .getFrom());
                    Log.i("XMPPClient","Got text ["+ message.getBody()
                            +"] from ["+ fromName +"]");
                    if(fromName.equalsIgnoreCase(matchUserJabberId
                            +"server name")){


                        // }
                    }
                }
            }
        }, filter);