- (void)onRecvGroup:(TIMMessage *)msg

{

    id<IMUserAble> info = [msg GetSenderProfile];

    if (!info)

    {

        info = [msg GetSenderGroupMemberProfile];

    }

    for(int index = ; index < [msg elemCount]; index++)

    {

        TIMElem *elem = [msg getElem:index];

        if([elem isKindOfClass:[TIMTextElem class]])

        {

            //消息

            TIMTextElem *textElem = (TIMTextElem *)elem;

            NSString *msgText = textElem.text;

            [self onRecvGroupSender:info textMsg:msgText];

        }

        else if([elem isKindOfClass:[TIMCustomElem class]])

        {

            // 自定义消息

            [self onRecvGroupSender:info customMsg:(TIMCustomElem *)elem];

        }

    }

}

@implementation TIMUserProfile (IMUserAble)

// 两个用户是否相同，可通过比较imUserId来判断

// 用户IMSDK的identigier

- (NSString *)imUserId

{

    return self.identifier;

}

// 用户昵称

- (NSString *)imUserName

{

    return  self.nickname.length >  ? self.nickname : self.identifier;

}

// 用户头像地址

- (NSString *)imUserIconUrl

{

    return [NSString isEmpty:self.faceURL] ? nil : self.faceURL;

}

- (BOOL)isEqual:(id)object

{

    BOOL isEqual = [super isEqual:object];

    if (!isEqual)

    {

        if ([object conformsToProtocol:@protocol(IMUserAble)])

        {

            id<IMUserAble> io = (id<IMUserAble>)object;

            isEqual = [[self imUserId] isEqualToString:[io imUserId]];

        }

    }

    return isEqual;

}