XFormsTouch (nuget): XFormsTouch: provides touch event notifications for Android and iOS via Xamarin.Forms Effect.  The code is copied from https://github.com/xamarin/xamarin-forms-samples/tree/master/Effects/TouchTrackingEffect and adapted to be used as a separate library. Xamarin explains how it works at https://docs.microsoft.com/en-us/xamarin/xamarin-forms/app-fundamentals/effects/touch-tracking.  This is just a handy NuGet package around the Xamarin Sample Code to use the TouchEffect in other projects.
Keywords: Xamarin.Forms|XForms|Touch|Effect|GestureRecognizer|Gestures