set Elevation Shadow Enabled
Set whether shadows should be drawn around the container to approximate native elevation shadows on the start and end views.
By default, the elevation shadows are only enabled for API level 28 and above, because Paint shadows are not supported with hardware acceleration below API level 28. If enabled for below API level 28, then the shadows will be drawn using , however this may cause performance issues.
Additionally, the rendering of elevation shadows may cause performance issues if the container's shape is not a round rect or a regular rect, e.g., a rect with cut corners.