aSmack - MultiUserChat.getJoinedRooms 返回空迭代器

Question

我正在开发一个 Android 应用程序，该应用程序利用 ASmack 在后台服务中向服务器发送 XMPP 消息和从服务器发送 XMPP 消息。我可以通过拨打MultiUserChat.join(connection.getUser()); 加入MultiUserChat (MUC)。我可以通过调用 MultiUserChat.isJoined(); 来确认我加入了聊天，它返回 true。此外，由于我使用的是 www.hosted.im，因此我可以看到我在使用他们的在线 UI 的会议室。在另一个函数中，我尝试使用 MultiUserChat.getJoinedRooms(connection, connection.getUser()); 检索已加入房间的列表，但这会返回一个空迭代器。

private XMPPConnection connection;

/*... Connect to server and login with username and password ...*/

public Iterator<String> getJoinedRooms() {
    Log.i(ChatListActivity.TAG, "Trying to get joined rooms");
    Iterator<String> result = null;
    if(connection != null) {
        Log.i(ChatListActivity.TAG, "Returning joined chat rooms as " + connection.getUser());
        result = MultiUserChat.getJoinedRooms(connection, connection.getUser());
        while(result.hasNext()) {
           Log.w(ChatListActivity.TAG, result.next());
        }
    } else {
        Log.e(ChatListActivity.TAG, "Cannot get joined rooms.  Connection == NULL");
    }

    if(result == null || (result != null && !result.hasNext())) {
        ArrayList<String> resultArr = new ArrayList<String>();
        resultArr.add(getString(R.string.no_chat_rooms_joined));
        result = resultArr.iterator();
        Log.i(ChatListActivity.TAG, "Returning EMPTY ITERATOR for joined chat rooms");
    }
    return result;
}

public void joinRoom(String room) {
    if(connection != null) {
        Log.i(ChatListActivity.TAG, "Joining room " + room);
        // Create a MultiUserChat using a Connection for a room
        MultiUserChat muc2 = new MultiUserChat(connection, "testroom@conference.konstadtest.p1.im");

        try {
            muc2.join(connection.getUser());
            muc2.grantVoice(connection.getUser());
            muc2.grantMembership(connection.getUser());
            if(muc2.isJoined())
                Log.w(ChatListActivity.TAG, "Joined room " + room + " as " + connection.getUser());
            else
                Log.w(ChatListActivity.TAG, "Failed to join " + room + " as " + connection.getUser());
        } catch (XMPPException e) {
            e.printStackTrace();
            Log.w(ChatListActivity.TAG, "Cannot join room " + room);
        }
    } else {
        Log.w(ChatListActivity.TAG, "Cannot join room " + room + " because connection is NULL");
    }
}

我做错了什么？我打电话给SmackAndroid.init(getApplicationContext());，然后才打电话。

感谢您的帮助，

克里斯

Answer 1

我所做的是在加入房间后添加了一个数据包侦听器。我也得到了一个空列表，但是当我调试时，我检查房间是否在服务器发送的结果 xml 节中返回因此我像这样手动添加 ha 数据包侦听器：

public void AddPacketListener(){
    PacketFilter filter = new IQTypeFilter(IQ.Type.RESULT);
    MyService.getConnection().addPacketListener(new PacketListener() 
    {   
    public void processPacket(Packet paramPacket) {

    if(paramPacket.getFrom().equals(MyService.getConnection().getUser())){
            String xml=paramPacket.toXML();
            String from[];

            System.out.println(xml);
            from=paramPacket.getFrom().split("/");
                Pattern pattern = Pattern.compile("<item jid=\"(.*?)/>");
                Matcher matcher = pattern.matcher(xml);
                String parts[];

                Roomlist.clear();
                while (matcher.find()) {    

                    parts=matcher.group(1).split("@");
                    Roomlist.add(parts[0]);

                }      
                return;         
                }

    }
    },filter);

}