IOS Xmpp的Iq发送和解析之请求讨论组成员

#pragma mark - 获取讨论组成员
- (void)getDiscussionMemberInfoWithSendIq:(discussionModel *)data
{
    
    NSXMLElement *iq = [NSXMLElement elementWithName:@"iq"];
    NSXMLElement *getUsers = [NSXMLElement elementWithName:@"getUsers"];
    
    [iq addAttributeWithName:@"id" stringValue:@"SPUT4-6"];
    [iq addAttributeWithName:@"type" stringValue:@"get"];
    [iq addAttributeWithName:@"from" stringValue:[NSString stringWithFormat:@"%@",[xmppStream myJID]]];
    
    [getUsers addAttributeWithName:@"xmlns" stringValue:@"com:im:roominfo"];
    [getUsers addAttributeWithName:@"roomId" stringValue:[Unity jidWithName:data.roomKey]];
    
    [iq addChild:getUsers];
    
    [xmppStream sendElement:iq];
}

#pragma mark - 解析讨论组成员
- (void)analyticDiscussionMemberWithIq:(XMPPIQ *)iq
{
    if ([@"result" isEqualToString:iq.type]) {
        NSXMLElement *member = iq.childElement;
        if ([@"mucinfo" isEqualToString:member.name])
        {
             NSMutableArray *memberArr = [[NSMutableArray alloc]init];
            NSArray *items = [member children];
            for (NSXMLElement *item in items) {
                discussionInfoModel *disInfo = [[discussionInfoModel alloc]init];
                disInfo.memberName = [item stringValue];
                disInfo.memberId = [item attributeStringValueForName:@"jid"];
                disInfo.memberPicUrl = [item attributeStringValueForName:@"headPhoto"];
                [memberArr addObject:disInfo];
            }
            
            if ([delegate respondsToSelector:@selector(passDiscussionMebmer:)]) {
                [delegate passDiscussionMebmer:memberArr];
            }

        }
    }
    
}