ios - 保持 UIImageView 和 UILabel 居中对齐

Question

我有一个 UIImageView 和一个 UILabel 通过 XIB 并排放置在屏幕的中心，现在标签文本可以是小的/大的，它是动态的，图像是恒定的。

当标签文本较小时，图像和标签看起来居中对齐，但当标签文本较大时，图像仍居中对齐，但现在标签尾部几乎触及屏幕。

这是图片:

希望你已经明白了，我怎样才能让这两个(图像和标签)始终居中对齐。

Answer 1

- (void)alignImageView:(UIImageView *)imageView andLabel:(UILabel *)label inSuperView:(UIView *)superView {
  [label sizeToFit]; // Resize the label to have a frame that perfectly fit the content
  /* We first set the X origin of the imageView,
   * To center anything on the X axis, the common way is to say that x is "(superview.width - subview.width) / 2"
   * Here subview width is imageView.width + label.width
   */
  [imageView setFrame:CGRectMake((superView.frame.size.width - imageView.frame.size.width - label.frame.size.width) / 2, imageView.frame.origin.y, imageView.frame.size.width, imageView.frame.size.height)];
   /* According to the previous calculation, we just have to say that the x origin for the label is just at the end of the imageView (origin + size)
    */
  [label setFrame:CGRectMake(imageView.frame.origin.x + imageView.frame.size.width, label.frame.origin.y, label.frame.size.width, label.frame.size.height)];
}

类似的东西应该可以工作。