public void PressedHandler(object sender, Point pt, uint ID)
{
RaiseAction(new TouchActionEventArgs(TouchPointFactory.Pressed(pt), ID));
}
public void ScrollHandler(object sender, Point pt, int delta, uint ID)
{
Device.BeginInvokeOnMainThread(() => {
Scroll?.Invoke(sender, new ScrollActionEventArgs(TouchPointFactory.Released(pt).Position, delta));
});
}