如何使用UIGestureRecognizer检测圆周运动

问题描述

我希望能够检测到某人的手指在屏幕上绘制圆周运动 - 好像他们正在画一个'O'。这可能与UIGestureRecognizer一起使用吗？

解决方案

我对我的问题的回答：

http://iphonedevelopment.blogspot.com/2009 /04/detecting-circle-gesture.html

..但将CircleView转换为自定义UIGestureRecognizer。一切都很可爱。

I want to be able to detect someone's finger drawing a circular motion on the screen - as if they were drawing an 'O'. Is this possible with UIGestureRecognizer?

解决方案

My answer to my question:

I used this: http://iphonedevelopment.blogspot.com/2009/04/detecting-circle-gesture.html

.. but turned the CircleView into a custom UIGestureRecognizer. Everything lovely.

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