/// <summary>
/// This function handles touch events.
/// It is responsible for maintaining the currently active touch events and dispatching events.
/// For details see http://developer.android.com/reference/android/view/View.html#onTouchEvent(android.view.MotionEvent)
/// </summary>
public override bool OnTouchEvent(MotionEvent e)
{
float xConversion = SparrowSharp.Stage.StageWidth / Width;
float yConversion = SparrowSharp.Stage.StageHeight / Height;
// get pointer index from the event object
int pointerIndex = e.ActionIndex;
// get pointer ID
int pointerId = e.GetPointerId(pointerIndex);
// get masked (not specific to a pointer) action
MotionEventActions maskedAction = e.ActionMasked;
switch (maskedAction)
{
case MotionEventActions.Down:
case MotionEventActions.PointerDown:
touchProcessor.OnPointerDown(e.GetX() * xConversion, e.GetY() * yConversion, pointerId);
break;
case MotionEventActions.Move:
for (int size = e.PointerCount, i = 0; i < size; i++)
{
touchProcessor.OnPointerMove(e.GetX(i) * xConversion, e.GetY(i) * yConversion, e.GetPointerId(i));
}
break;
case MotionEventActions.Up:
case MotionEventActions.PointerUp:
touchProcessor.OnPointerUp(pointerId);
break;
case MotionEventActions.Cancel:
touchProcessor.OnPointerUp(pointerId);
break;
}
return(true);
}
private void OnMouseButtonUp(object sender, NativeWindowMouseEventArgs e)
{
// does not fire if the mouse goes out of the window area and is released
_touchProcessor.OnPointerUp(1);
}