根据ui控件的字体计算占用的长度

    //1.根据icon计算name的长度
    CGFloat nameX = CGRectGetMaxX(_icon.frame) + kBorder;
    CGFloat nameY = iconY;
    //计算用户昵称的长度
    CGSize nameSize = [_weiBo.name sizeWithFont:_name.font];
    _name.frame = CGRectMake(nameX, nameY, nameSize.width, nameSize.height);
   
    //2.设置vip的frame
    CGFloat vipX = CGRectGetMaxX(_name.frame) + kBorder;
    CGFloat vipY = nameY;
    _vip.frame = CGRectMake(vipX, vipY, 10, 10);