垂直和水平的手势在安卓 [英] Vertical and Horizontal gestures in Android

问题描述

我想我的GestureOverlayView同时检测纯水平和垂直的姿态。

I would like my GestureOverlayView to detect both purely horizontal as well as vertical gestures.

从<一个href="http://android-developers.blogspot.com/2009/10/gestures-on-android-16.html">http://android-developers.blogspot.com/2009/10/gestures-on-android-16.html

取向：表示的意见的滚动方向下方。在这种情况下，列表中垂直滚动，这意味着任何水平手势（像action_delete）可以立即识别为手势与一个垂直行程开始必须包含手势。至少一个水平分量被识别。换句话说，一个简单的垂直线不能被识别为手势，因为它将与列表的滚动发生冲突。

"orientation: indicates the scroll orientation of the views underneath. In this case the list scrolls vertically, which means that any horizontal gestures (like action_delete) can immediately be recognized as a gesture. Gestures that start with a vertical stroke must contain at least one horizontal component to be recognized. In other words, a simple vertical line cannot be recognized as a gesture since it would conflict with the list's scrolling."

看起来像一个catch-22，如果机器人：方向设置为垂直的，我只能有水平挥笔，如果机器人：方向设置为横向，我只能垂直刷卡。 我怎样才能解决这个要求得到什么呢？

Seems like a catch-22, if the android:orientation is set to vertical, I can only have horizontal swipes, and if the android:orientation is set to horizontal, I can only have vertical swipes. How can I get around this requirement?

推荐答案

所有你需要做的，是设置GestureStrokeAngleThreshold的值接近90（我用90F）

All you have to do, is set the GestureStrokeAngleThreshold to a value closer to 90 (I used 90f)

角度threashold的默认值为40.0f，因为其中的简单的垂直的手势将跳过

The default value of the angle threashold is 40.0f because of which your simple vertical gestures would be skipped

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