public RippleEffect()
{
AddHandler(PointerReleasedEvent, (s, e) => {
if (last != null)
{
pointers--;
// This way to handle pointer released is pretty tricky
// could have more better way to improve
OnReleaseHandler(last, e);
last = null;
}
});
AddHandler(PointerPressedEvent, (s, e) => {
if (pointers == 0)
{
// Only first pointer can arrive a ripple
pointers++;
var r = CreateRipple();
last = r;
r.SetupInitialValues(e, this);
// Attach ripple instance to canvas
PART_RippleCanvasRoot.Children.Add(r);
r.RunFirstStep(e, this);
}
});
}
private void PointerReleasedHandler(object sender, PointerReleasedEventArgs e)
{
if (last != null)
{
pointers--;
// This way to handle pointer released is pretty tricky
// could have more better way to improve
OnReleaseHandler(last, e);
last = null;
}
}
private void PointerPressedHandler(object sender, PointerPressedEventArgs e)
{
if (pointers == 0)
{
// Only first pointer can arrive a ripple
pointers++;
var r = CreateRipple();
last = r;
r.SetupInitialValues(e, this);
// Attach ripple instance to canvas
PART_RippleCanvasRoot.Children.Add(r);
r.RunFirstStep(e, this);
}
}