当我点击目标c中的label2时，如何使label1的大小与label2的大小相同

Question

我有两列标签.ColumnA包含五个空标签，columnB包含五个带有一些随机文本的标签.ColumnA最初隐藏，当用户点击ColumnB中的任何标签时进入视图。两列中两个标签的大小不同，因为columnB大小与其包含的文本相符，但columnA没有文本，因此其大小取决于框架。我想当我点击columnB中的任何标签时，columnA中所有标签的大小应该与tapped标签的大小相同，我怎样才能得到所有这些东西？见图

在此图片中，当我点击文字 abs 的灰色标签时，有不同大小的蓝色空标签。我怎样才能获得蓝色空标签尺寸标签？ 这是我的代码`//顶行的顶部     CGFloat y1 = 100.0;

// left of Column A
CGFloat x1 = 20.0;

// left of Column B
CGFloat x2 = 220.0;

// Vertical spacing for rows of labels
CGFloat yInc = 40.0;

// initialize a CGRect
CGRect rect1 = CGRectMake(x1, y1, 100, 30);
for (int i = 0; i < length; i++)
{

    // Create UILabel for Column A
    _lblA = [[UILabel alloc] initWithFrame:rect1];
    _lblA.tag = 100+i;
    _lblA.textAlignment = NSTextAlignmentCenter;
    _lblA.backgroundColor = [UIColor blueColor];
    _lblA.textColor = [UIColor whiteColor];
    _lblA.font = [UIFont fontWithName:@"Verdana-Bold" size:17.0];
    //[self.gameLayer addSubview:_lblA];
    //lblA.userInteractionEnabled = YES;
    _lblA.text=[MainArrayFirst objectAtIndex:i];
    [_lblA sizeToFit];

    // "move" the rectangle, so the next label starts at column B
    rect1.origin.x = x2;

    // Create UILabel for Column B
    _lblB = [[UILabel alloc] initWithFrame:rect1];
    _lblB.tag = 200+i;
     _lblB.layer.borderColor = [UIColor blueColor].CGColor;
    _lblB.layer.borderWidth = 3.0;

    [self.gameLayer addSubview:_lblB];
    __lblB.hidden = YES;
    CGSize maximumLabelSize = CGSizeMake(100,30);
    CGSize expectedLabelSize = [_lblA.text sizeWithFont:_lblA.font
                                      constrainedToSize:maximumLabelSize
                                          lineBreakMode:_lblA.lineBreakMode];
    CGRect newFrame = _lblA.frame;
    newFrame.size.width = expectedLabelSize.width;
    self.lblB.frame = newFrame;
    CGRect newFrame1 = _lblB.frame;
    newFrame1.size.width = expectedLabelSize.width;
    newFrame1.origin.x = _lblC.frame.origin.x + self.lblC.frame.size.width;


    // add a Tap Gesture Recognizer to the label
    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(gotTapped:)];
    [_lblB addGestureRecognizer:tap];


    // "move" the rectangle, so the next label starts at column C
    // this is the right-edge of the Column A label
    rect1.origin.x = _lblC.frame.origin.x + _lblC.frame.size.width;
    }
         - (void) gotTapped:(id)sender {
          // a label in Column A was tapped, so show Column B labels if they were hidden,
          //      or hide them if they were visible
          for (UILabel *v in _columnB) {
          v.hidden = !v.hidden;

     }
   }

`