自定义UIView触摸区域 [英] Custom UIView touch area

问题描述

你好，我需要一些奇怪的形状来处理 touchesBegan 方法.问题是 UIViews 是正方形的，我唯一能做的方法是声明一个网格，然后检查坐标.还有其他方法吗?

Hello I have some weird shapes that I need to handle the touchesBegan method on. The issue is that UIViews are square and the only way I could do it is to maybe declare a grid and then check the coordinates. Is there any other way of doing this?

推荐答案

在UIView子类中实现 hitTest:withEvent:.仅当CGPoint位于形状内时才返回YES.

Implement hitTest:withEvent: in your UIView subclass. Return YES only if the CGPoint is inside the shape.

查看此问题以获取多边形形状:如何确定2D点是否在多边形内?

Check out this question for polygon shapes: How can I determine whether a 2D Point is within a Polygon?

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