如何在iOS中使用ejabber xmpp创建永久组

XMPPStream *xmppStream = [[XMPPStream alloc] init];
[xmppStream addDelegate:self delegateQueue:dispatch_get_main_queue()];

[xmppStream setMyJID:[XMPPJID jidWithUser:@"your_username" domain:@"your_domain" resource:nil]];
[xmppStream setHostName:@"your_ejabberd_server"];
NSError *error = nil;
[xmppStream connectWithTimeout:XMPPStreamTimeoutNone error:&error];

- (void)xmppStreamDidConnect:(XMPPStream *)sender {
    NSError *error = nil;
    [xmppStream authenticateWithPassword:@"your_password" error:&error];
}

- (void)xmppStreamDidAuthenticate:(XMPPStream *)sender {
    // 连接成功并认证通过
    // 在这里可以创建永久组
}

- (void)xmppStream:(XMPPStream *)sender didNotAuthenticate:(DDXMLElement *)error {
    // 认证失败
}

- (void)xmppStreamDidDisconnect:(XMPPStream *)sender withError:(NSError *)error {
    // 连接断开
}

XMPPRoomMemoryStorage *roomStorage = [[XMPPRoomMemoryStorage alloc] init];
XMPPJID *roomJID = [XMPPJID jidWithString:@"room_name@conference.your_ejabberd_server"];
XMPPRoom *xmppRoom = [[XMPPRoom alloc] initWithRoomStorage:roomStorage jid:roomJID dispatchQueue:dispatch_get_main_queue()];
[xmppRoom activate:xmppStream];
[xmppRoom addDelegate:self delegateQueue:dispatch_get_main_queue()];
[xmppRoom joinRoomUsingNickname:@"your_nickname" history:nil];

- (void)xmppRoomDidCreate:(XMPPRoom *)sender {
    // 聊天室创建成功
}

- (void)xmppRoomDidJoin:(XMPPRoom *)sender {
    // 成功加入聊天室
}

- (void)xmppRoom:(XMPPRoom *)sender didReceiveMessage:(XMPPMessage *)message fromOccupant:(XMPPJID *)occupantJID {
    // 收到聊天室消息
}

- (void)xmppRoom:(XMPPRoom *)sender didFetchConfigurationForm:(NSXMLElement *)configForm {
    // 获取聊天室配置表单
}

- (void)xmppRoom:(XMPPRoom *)sender didConfigure:(XMPPIQ *)iqResult {
    // 配置聊天室成功
}