xmppframework for iOS client（三） 添加好友

添加好友代码

初始化xmppStream

 _xmppStream = [[XMPPStreamalloc] init];

    //[_xmppStream setEnableBackgroundingOnSocket: YES];

    [_xmppStreamaddDelegate:selfdelegateQueue:dispatch_get_main_queue()];

    //

    _xmppRosterDataStorage = [[XMPPRosterCoreDataStoragealloc] init];

    _xmppRoster = [[XMPPRosteralloc] initWithRosterStorage:_xmppRosterDataStorage ];

    //_xmppRoster.autoFetchRoster = YES;

    //_xmppRoster.autoAcceptKnownPresenceSubscriptionRequests = YES;

    //}

    [_xmppRosteractivate:_xmppStream];

    [_xmppRosteraddDelegate:selfdelegateQueue:dispatch_get_main_queue()];

//添加好友

    XMPPJID *frendJID = [XMPPJID jidWithString :strFriendJID ];

    [_xmppRoster addUser:frendJID withNickname:nick];

//添加后，好友收到消息，好友同意 有如下回调 

 

//收到好友状态

- (void)xmppStream:(XMPPStream *)sender didReceivePresence:(XMPPPresence *)presence

{

    

    //    NSLog(@"presence = %@", presence);

    

    //取得好友状态 subscribed 通过验证好友天骄请求 unsubscribed 对方拒绝

    NSString *presenceType = [presence type]; //online/offline

    //当前用户

    NSString *userId = [[sender myJID] user];

    //在线用户

    NSString *presenceFromUser = [[presence from] user];    

    if (![presenceFromUser isEqualToString:userId])

    {

        

        //在线状态

        if ([presenceType isEqualToString:@"available"])

        {

        }

        else if ([presenceType isEqualToString:@"unavailable"])//离线

        {            

        }

        //

    }

}