mwherman2000 / TouchTrackingEffect

...from https://github.com/xamarin/xamarin-forms-samples/tree/main/Effects/TouchTrackingEffect

name	description	page_type	languages	products	urlFragment
Xamarin.Forms - Touch-Tracking Effect Demos	This sample demonstrates an effect that implements multi-touch finger tracking, and shows how to trigger events from an effect.	sample	csharp	xamarin	effects-touchtrackingeffect

Touch-Tracking Effect Demos

This sample demonstrates an effect that implements multi-touch finger tracking, and shows how to trigger events from an effect.

For more information about the sample see Invoking Events from Effects.