如何使用UISwipeGestureRecognizer检测轻弹手势？ [英] How to detect a flick gesture using UISwipeGestureRecognizer?

问题描述

我听说 UISwipeGestureRecognizer 可用于区分慢速滑动和快速轻弹。但我找不到任何API来区分它们。

I heard that UISwipeGestureRecognizer can be used to distinguish between a slow swipe and a fast flick. But I can't find any API to tell the difference.

推荐答案

你是否特别需要使用 UISwipeGestureRecognizer ，还是可以使用 UIPanGestureRecognizer 代替？ UIPanGestureRecognizer 为您提供精确的移动数据，而 UISwipeGestureRecognizer 更基本，只检测是否发生了滑动（以及方向）。

Do you specifically need to use UISwipeGestureRecognizer, or can you use UIPanGestureRecognizer instead? UIPanGestureRecognizer gives you precise movement data whereas UISwipeGestureRecognizer is more basic and just detects whether or not a swipe happened (and in which direction).

UIPanGestureRecognizer 有一个 -velocityInView：方法，它返回一个CGPoint，表示每秒垂直和水平点数。

UIPanGestureRecognizer has a -velocityInView: method which returns a CGPoint, expressing points per second, vertically and horizontally.

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