xmpp开发教程（六）－添加和删除好友

 1 [_xmppRoster fetchRoster];//获取好友列表  
 2   
 3 //获取到一个好友节点  
 4 - (void)xmppRoster:(XMPPRoster *)sender didRecieveRosterItem:(NSXMLElement *)item  
 5   
 6 //获取完好友列表  
 7 - (void)xmppRosterDidEndPopulating:(XMPPRoster *)sender  
 8   
 9 //到服务器上请求联系人名片信息  
10 - (void)fetchvCardTempForJID:(XMPPJID *)jid;  
11   
12 //请求联系人的名片，如果数据库有就不请求，没有就发送名片请求  
13 - (void)fetchvCardTempForJID:(XMPPJID *)jid ignoreStorage:(BOOL)ignoreStorage;  
14   
15 //获取联系人的名片，如果数据库有就返回，没有返回空，并到服务器上抓取  
16 - (XMPPvCardTemp *)vCardTempForJID:(XMPPJID *)jid shouldFetch:(BOOL)shouldFetch;  
17   
18 //更新自己的名片信息  
19 - (void)updateMyvCardTemp:(XMPPvCardTemp *)vCardTemp;  
20   
21 //获取到一盒联系人的名片信息的回调  
22 - (void)xmppvCardTempModule:(XMPPvCardTempModule *)vCardTempModule   
23         didReceivevCardTemp:(XMPPvCardTemp *)vCardTemp   
24                      forJID:(XMPPJID *)jid 

 1 //name为用户账号
 2 - (void)XMPPAddFriendSubscribe:(NSString *)name
 3 {
 4     NSString *XMPPHOST=@"helloworldtekimac-mini.local";
 5     //XMPPHOST 就是服务器名，  主机名
 6     XMPPJID *jid = [XMPPJID jidWithString:[NSString stringWithFormat:@"%@@%@",name,XMPPHOST]];
 7     //[presence addAttributeWithName:@"subscription" stringValue:@"好友"];
 8     [xmppRoster subscribePresenceToUser:jid];
 9     
10 }

1 //删除好友，name为好友账号
2 - (void)removeBuddy:(NSString *)name
3 {
4     NSString *XMPPHOST=@"helloworldtekimac-mini.local";
5     
6     XMPPJID *jid = [XMPPJID jidWithString:[NSString stringWithFormat:@"%@@%@",name,XMPPHOST]];
7     
8     [xmppRoster removeUser:jid];
9 }