Multiuserchat InvitationListener Smack：4.1.0不会被调用

Question

我已经在堆栈上经历了相关的问题，但是都是徒劳的。我没有在邀请侦听器中得到回调。任何帮助将不胜感激。

  

MultiUserChatListener

 MultiUserChatManager.getInstanceFor(connection).addInvitationListener(new InvitationListener() {
        @Override
        public void invitationReceived(XMPPConnection conn, MultiUserChat room, String inviter, String reason, String password, Message message) {
            String nickname = AppSharedPereference.getInstance(mContext).getUserName();
            try {
                mchat.join(nickname);
            } catch (SmackException.NoResponseException e) {
                e.printStackTrace();
            } catch (XMPPException.XMPPErrorException e) {
                e.printStackTrace();
            } catch (SmackException.NotConnectedException e) {
                e.printStackTrace();
            }
        }
    });

}

  

发送邀请方法

public void sendInvites(ArrayList<ContactData.Usercontactsdetail> usercontactsdetail) {
            try {
                for (int i = 0; i < usercontactsdetail.size(); i++) {
                    String userID = usercontactsdetail.get(i).getContactid();
                    String user = userID + "@" + connection.getHost();
                    mchat.invite(user,
                            userID + "_user");
                }
            } catch (SmackException.NotConnectedException e) {
                e.printStackTrace();
            }finally {
                usercontactsdetail = null;
            }
        try {
            mchat.sendMessage("New group created");
        } catch (SmackException.NotConnectedException e1) {
            e1.printStackTrace();
        }
    }