CODE EXAMPLE FOR DART

BoxShadow in DrawerHeader flutter

Container(
      height: 200,
      decoration: BoxDecoration(
          boxShadow: [
            BoxShadow(
                color: Colors.black54,
                blurRadius: 20.0,
                offset: Offset(0.0, 0.75)
            )
          ],
        color: colorPrimary
      ),
    ),