UIView:让子视图接收触摸，但不接收主视图吗? [英] UIView: Let subviews receive touches, but not main view?

问题描述

我在此结构中有几个包含视图的单元格:

I've got several cells containing views in this structure:

• 主视图
• 后退
• frontview

单元格部分重叠.这意味着单元格A的主视图将部分覆盖单元格B的前视图.像这样:

The cells partly overlap. This means that the main view of cell A will partly cover the frontview of cell B. Like this:

• B主视图
• B后视
• B前视图
  • 主视图
  • 回顾
  • 前视图

  我想拦截前视图和后视图的触摸，但是我希望主视图忽略它们.

  I want to intercept touches on frontviews and backviews, but I want main views to ignore them.

  (我曾尝试在主视图上禁用用户交互，但这也会禁用前视图和后视图).

  (I've tried disabling user interaction on main views, but that also disables front and back views).

  有什么提示吗?

  推荐答案

  我在这里找到了答案:

  I found an answer here: http://vectorvector.tumblr.com/post/2130331861/ignore-touches-to-uiview-subclass-but-not-to-its

  基本上，我将主视图作为UIView的子类，并使用以下方法覆盖hitTest:

  Basically, I'm making the main view a subclass of UIView, and overriding hitTest with this:

  -(id)hitTest:(CGPoint)point withEvent:(UIEvent *)event {
      id hitView = [super hitTest:point withEvent:event];
      if (hitView == self) return nil;
      else return hitView;
  }
  

  (请注意，对于有问题的UIView，您必须将UserInteractionEnabled设置为true，打勾，是的！)

  (Note that confusingly you must set UserInteractionEnabled to true, ticked, yes for the UIView in question!)

  这篇关于UIView:让子视图接收触摸，但不接收主视图吗?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！