首先需要创建一个房间：
xmppRoom = [[XMPPRoom alloc] initWithRoomStorage:self jid:[XMPPJID jidWithString:[NSString stringWithFormat:@"%@@%@", jidString, @"conference.192.168.1.117"]]];[xmppRoom activate:xmppStream];[xmppRoom addDelegate:self delegateQueue:dispatch_get_main_queue()];
加入房间：
[[self xmppRoom] joinRoomUsingNickname:[[[NSUserDefaults standardUserDefaults] objectForKey:@"UserInfo"] valueForKey:@"userId"] history:nil];此时房间ID就出现在好友列表内，可以正常进入聊天。
其次邀请好友：
[[self xmppRoom] inviteUser:[XMPPJID jidWithString:[NSString stringWithFormat:@"%@@192.168.1.117", friendIDFeild.text]] withMessage:@"join room!"];客户端要对收到邀请做出响应，，方法如下：
新建一个XMPPMUC：
xmppMUC = [[XMPPMUC alloc] initWithDispatchQueue:dispatch_get_main_queue()];[xmppMUC activate:xmppStream];[xmppMUC addDelegate:self delegateQueue:dispatch_get_main_queue()];类要实现XMPPMUCDelegate-(void)xmppMUC:(XMPPMUC *)sender roomJID:(XMPPJID *)roomJID didReceiveInvitation:(XMPPMessage *)message{NSLog(@"%@", message);xmppRoom = [[XMPPRoom alloc] initWithRoomStorage:self jid:roomJID];[xmppRoom activate:xmppStream];[xmppRoom addDelegate:self delegateQueue:dispatch_get_main_queue()];[xmppRoom joinRoomUsingNickname:[[[NSUserDefaults standardUserDefaults] objectForKey:@"UserInfo"] valueForKey:@"userId"] history:nil];}其中[xmppRoom joinRoomUsingNickname:[[[NSUserDefaults standardUserDefaults] objectForKey:@"UserInfo"] valueForKey:@"userId"] history:nil];为确认加入房间。
当你接受请求后，房间id会出现在联系人列表中，正常聊天就可以了，聊天信息的type为groupchat，这部分在XMPP基础中有，不做赘述。此为初步，后续补充。
走过一段路，风景毕竟不相同。这段惠风和畅，
