[UWP]如何在windows phone10应用程序中识别用户手指移动 [英] [UWP]How to recognize user finger movement in windows phone10 application

问题描述

我在XAML页面中有一个Grid。要求是：当用户创建"N"时，用手指触摸，他将被导航到另一页。我目前正在使用

I have a Grid in a XAML page. Requirement is: When the user creates a "N" with his finger touch , he will be navigated to another page. I am currently using

ContentPanel.ManipulationMode =
ManipulationModes 。全部;

ContentPanel.ManipulationMode = ManipulationModes.All;

ContentPanel.ManipulationStarted + = ContentPanel_ManipulationStarted;

ContentPanel.ManipulationStarted += ContentPanel_ManipulationStarted;

ContentPanel.ManipulationDelta + = ContentPanel_ManipulationDelta;

ContentPanel.ManipulationDelta += ContentPanel_ManipulationDelta;

ContentPanel.ManipulationCompleted + = ContentPanel_ManipulationCompleted;

ContentPanel.ManipulationCompleted += ContentPanel_ManipulationCompleted;

我无法输入将检查用户是否创建了"N"的逻辑。用手指的信。谁能帮忙。

I am not able to put the logic which will check if the user has created a "N" letter with finger. Can anyone help.

请注意：我尝试使用Inkcanvas。它不符合我的要求，因为它会停止滚动网格，最重要的是它不会有Windows Phone 10的识别器。

Please Note: I have tried with Inkcanvas .It wont fit my requirement as it will stop the scrolling of the grid and most important it will not have recognizer for windows phone 10 .

推荐答案

我直接观察Pointer事件而不是操作事件。您需要创建自己的启发式来检测"N"。 PointerPressed和PointerReleased之间的PointerMoved事件中的逻辑。

I'd watch the Pointer events directly rather than the manipulation events. You'll need to create your own heuristic to detect the "N" logic in PointerMoved events between a PointerPressed and PointerReleased.

没有内置（Inking之外）来帮助识别。手写识别是非常困难的，但是如果你只是想要一些模糊的N喜欢它可能不是很难看到指针基本上直线向上移动，然后在对角线下降
，然后直接向上。

There's nothing built in (outside of Inking) to help with this recognition. Handwriting recognition is very difficult, but if you just want somethin vaguely N like it probably isn't to hard to see that the pointer moves essentially straight up, then down at a diagonal, and then straight up.

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