public override bool OnScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY)
{
bool gestureHandled = false;
var point1 = new Xamarin.Forms.Point(e1.GetX(), e1.GetY());
var point2 = new Xamarin.Forms.Point(e2.GetX(), e2.GetY());
if (_activePanGesture == null && Math.Abs(point1.Distance(point2)) > ScrollThreshold)
{
var gestureRecognizers = new List <Tuple <MycoView, IMycoGestureRecognizerController> >();
_container.GetGestureRecognizers(new Xamarin.Forms.Point(_context.FromPixels(e1.GetX()), _context.FromPixels(e1.GetY())), gestureRecognizers);
foreach (var gestureRecognizer in gestureRecognizers)
{
var panGesture = gestureRecognizer.Item2 as IMycoPanGestureRecognizerController;
if (panGesture != null)
{
_activePanGestureView = gestureRecognizer.Item1;
_activePanGesture = panGesture;
panGesture.SendPanStarted(gestureRecognizer.Item1);
gestureHandled = true;
break;
}
}
}
else if (_activePanGesture != null)
{
_activePanGesture.SendPanUpdatedWithUpdate(_activePanGestureView, _context.FromPixels(distanceX), _context.FromPixels(distanceY));
gestureHandled = true;
}
return(gestureHandled);
}
private bool HandleUp(MotionEvent e)
{
foreach (var gesture in _activeGestures)
{
var point = new Xamarin.Forms.Point(_context.FromPixels(e.GetX()), _context.FromPixels(e.GetY()));
var isCanceled = !gesture.Item1.RenderBounds.Contains(point);
gesture.Item2.SendTouchUp(gesture.Item1, _context.FromPixels(e.GetX()) - gesture.Item1.RenderBounds.X, _context.FromPixels(e.GetY()) - gesture.Item1.RenderBounds.Y, isCanceled);
}
_activeGestures.Clear();
if (_activePanGesture != null)
{
if (_activePanGesture is IMycoPanGestureRecognizerController)
{
(_activePanGesture as IMycoPanGestureRecognizerController).SendPanCompleted(_activePanGestureView);
}
_activePanGesture = null;
_activePanGestureView = null;
return(true);
}
return(false);
}
