aSmack - MultiUserChat.getJoinedRooms returns empty iterator

Question

I'm working on an Android app that utilizes ASmack to send XMPP messages to and from a server in a background service. I can join a MultiUserChat (MUC) by calling MultiUserChat.join(connection.getUser());. I can confirm that I joined the chat by calling MultiUserChat.isJoined();, which returns true. Also, since I'm using www.hosted.im, I can see that I am in the conference room using their online UI. In another function, I try to retrieve the list of joined rooms, using MultiUserChat.getJoinedRooms(connection, connection.getUser());, but that returns an empty iterator.

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, "[email protected]");

        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");
    }
}

What am I doing wrong? I called SmackAndroid.init(getApplicationContext()); before calling anything else.

Thank you for the help,

Chris

Answer 1

What i did is that i add a packet listener after getting get joined rooms.. i was also getting an empty list but when i debug i check that the rooms was getting returned in the resultant xml stanze that was sent by the server therefore i manually add ha packet listener like this:

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);

}