NullShadowBuilder.cs

class NullShadowBuilder : View.DragShadowBuilder
	{
		const int centerOffset = 52;
		int width, height;

		public NullShadowBuilder (View baseView) : base (baseView)
		{
		}

		public override void OnProvideShadowMetrics (Point shadowSize, Point shadowTouchPoint)
		{
			width = 75;
			height = 75;

			// This is the overall dimension of your drag shadow
			shadowSize.Set (width * 2, height * 2);

			// This one tells the system how to translate your shadow on the screen so
			// that the user fingertip is situated on that point of your canvas.
			// In my case, the touch point is in the middle of the (height, width) top-right rect
			shadowTouchPoint.Set (width + width / 2 - centerOffset, height / 2 + centerOffset);

		}
		public override void OnDrawShadow (Canvas canvas)
		{
			base.OnDrawShadow (canvas);
		}
	}