public static Drawable CreateShadow(View view)
{
int elevationValue = 10;
Rect shapeDrawablePadding = new Rect();
shapeDrawablePadding.Left = elevationValue;
shapeDrawablePadding.Right = elevationValue;
shapeDrawablePadding.Top = elevationValue;
shapeDrawablePadding.Bottom = elevationValue;
int DY = 0;
ShapeDrawable shapeDrawable = new ShapeDrawable();
shapeDrawable.SetPadding(shapeDrawablePadding);
shapeDrawable.Paint.Color = Color.Red;
shapeDrawable.Paint.SetShadowLayer(12 / 3, 0, DY, Color.Red);
view.SetLayerType(LayerType.Software, shapeDrawable.Paint);
shapeDrawable.Shape = new RoundRectShape(new float[] { 12, 12, 12, 12, 12, 12, 12, 12 }, null, null);
LayerDrawable drawable = new LayerDrawable(new Drawable[] { shapeDrawable });
drawable.SetLayerInset(0, elevationValue, elevationValue * 2, elevationValue, elevationValue * 2);
drawable.SetAlpha(40);
return(drawable);
}