如何获得给予CGPoint的UIView？ [英] How to get UIView given a CGPoint?

问题描述

我正在尝试找到一种获得特定 UIView 的方法，给出 CGPoint 。简而言之，我想做一个热门测试。

I am trying to find a way to get a particular UIView given a CGPoint. Briefly, I want to do a hit test.

例如，我有一个 UIView ，其中有很多子视图尺寸小于父 UIView 。我想要做的是，当发生 touchMoved 事件时，检查触摸的子视图周围的其他子视图。
为此目的，能够将 CGPoint 转换为子视图 UIView 会很高兴。

For example, I have a UIView which has many subviews whose sizes are smaller than the parent UIView. What I want to do is, when a touchMoved event happens, to check the other subviews around the touched subview. For that purpose, it would be nice to be able to convert a CGPoint to a subview UIView.

我是Objective-C的新手。有没有好办法呢？任何建议都会非常有用。 ：）

I'm new to Objective-C. Is there good way to do it? Any suggestion would be really helpful. :)

推荐答案

有一个 hitTest：withEvent：选择器。这将返回包含该点的视图层次结构中最深的子视图。尝试在最顶层的视图中调用它。

There is a hitTest:withEvent: selector on UIView. This returns the deepest subview in the view hierarchy that contains that point. Try calling this on your topmost view.

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