protected override void OnDetached()
{
_touchEvents.TouchBegin -= OnTouchBegin;
_touchEvents.TouchEnd -= OnTouchEnd;
_touchEvents.TouchCancel -= OnTouchEnd;
_view.RemoveGestureRecognizer(_touchRecognizer);
_touchRecognizer.Delegate?.Dispose();
_touchRecognizer.Delegate = null;
_touchRecognizer.Dispose();
_touchEvents = null;
_touchRecognizer = null;
_layer.RemoveFromSuperview();
_layer.Dispose();
_layer = null;
_view = null;
}
protected override void OnAttached()
{
_view = Control ?? Container;
_view.UserInteractionEnabled = true;
_layer = new UIView
{
Alpha = 0,
Opaque = false,
UserInteractionEnabled = false
};
_view.AddSubview(_layer);
_layer.TranslatesAutoresizingMaskIntoConstraints = false;
_layer.TopAnchor.ConstraintEqualTo(_view.TopAnchor).Active = true;
_layer.LeftAnchor.ConstraintEqualTo(_view.LeftAnchor).Active = true;
_layer.BottomAnchor.ConstraintEqualTo(_view.BottomAnchor).Active = true;
_layer.RightAnchor.ConstraintEqualTo(_view.RightAnchor).Active = true;
_view.BringSubviewToFront(_layer);
_touchEvents = new TouchEvents();
_touchRecognizer = new TouchEventsGestureRecognizer(_touchEvents);
_touchRecognizer.Delegate = new ShouldRecognizeSimultaneouslyRecognizerDelegate();
_view.AddGestureRecognizer(_touchRecognizer);
_touchEvents.TouchBegin += OnTouchBegin;
_touchEvents.TouchEnd += OnTouchEnd;
_touchEvents.TouchCancel += OnTouchEnd;
UpdateEffectColor();
}
