使用getParticipants方法你可以获取在一个聊天会话中参与者的列表。和正常的聊天一样，你可以发送文本或数据消息给你想发的每个聊天成员，还可以使用inviteContact方法来邀请新的成员。leave方法允许你离开一个聊天室并结束会话。
和正常聊天一样，你可以通过实现并注册一个IChatListener来监听聊天室消息。和监听聊天消息一样，你还可以对人员加入或离开聊天室作出反应。
接下来的框架代码显示了实现一个聊天监听者的实现：
IChatListener groupChatListener = new IChatListener.Stub() {
// Fired when a one-to-one chat becomes a group chat.
public void convertedToGroupChat(String oldJid,String groupChatRoom,long groupId)
throws RemoteException {
// TODO Notify user that the conversation is now a group chat.
}
// Fired when a new person joins a chat room.
public void participantJoined(String groupChatRoom, String nickname)
throws RemoteException {
// TODO Notify user that a new participant has joined the conversation.
}
// Fired when a participant leaves a chat room.
public void participantLeft(String groupChatRoom, String nickname)
throws RemoteException {
// TODO Notify user a chat participant left.
}
// Fired when the group chat is closed
public void chatClosed(String groupChatRoom) throws RemoteException {
// TODO Close the chat.
}
public void chatRead(String arg0) throws RemoteException { }
public void newMessageReceived(String from, String body) { }
};