[Android]Create AnyView Background

object ViewUtils {
    fun generateBackgroundWithShadow(
        view: View, @ColorRes backgroundColor: Int,
        @DimenRes cornerRadius: Int,
        @ColorRes shadowColor: Int,
        @DimenRes elevation: Int,
        shadowGravity: Int
    ): Drawable {
        val cornerRadiusValue = view.context.resources.getDimension(cornerRadius)
        val elevationValue = view.context.resources.getDimension(elevation).toInt()
        val shadowColorValue = ContextCompat.getColor(view.context, shadowColor)
        val backgroundColorValue = ContextCompat.getColor(view.context, backgroundColor)
        val outerRadius = floatArrayOf(
            cornerRadiusValue, cornerRadiusValue, cornerRadiusValue,
            cornerRadiusValue, cornerRadiusValue, cornerRadiusValue, cornerRadiusValue,
            cornerRadiusValue
        )
        val backgroundPaint = Paint()
        backgroundPaint.style = Paint.Style.FILL
        backgroundPaint.setShadowLayer(cornerRadiusValue, 0f, 0f, 0)
        val shapeDrawablePadding = Rect()
        shapeDrawablePadding.left = elevationValue
        shapeDrawablePadding.right = elevationValue
        val DY: Int
        when (shadowGravity) {
            Gravity.CENTER -> {
                shapeDrawablePadding.top = elevationValue
                shapeDrawablePadding.bottom = elevationValue
                DY = 0
            }

            Gravity.TOP -> {
                shapeDrawablePadding.top = elevationValue * 2
                shapeDrawablePadding.bottom = elevationValue
                DY = -1 * elevationValue / 3
            }

            Gravity.BOTTOM -> {
                shapeDrawablePadding.top = elevationValue
                shapeDrawablePadding.bottom = elevationValue * 2
                DY = elevationValue / 3
            }

            else -> {
                shapeDrawablePadding.top = elevationValue
                shapeDrawablePadding.bottom = elevationValue * 2
                DY = elevationValue / 3
            }
        }
        val shapeDrawable = ShapeDrawable()
        shapeDrawable.setPadding(shapeDrawablePadding)
        shapeDrawable.paint.color = backgroundColorValue
        shapeDrawable.paint.setShadowLayer(
            cornerRadiusValue / 3,
            0f,
            DY.toFloat(),
            shadowColorValue
        )
        view.setLayerType(LAYER_TYPE_SOFTWARE, shapeDrawable.paint)
        shapeDrawable.shape = RoundRectShape(outerRadius, null, null)
        val drawable = LayerDrawable(arrayOf<Drawable>(shapeDrawable))
        drawable.setLayerInset(
            0,
            elevationValue,
            elevationValue * 2,
            elevationValue,
            elevationValue * 2
        )
        return drawable
    }
}

Reference:
https://medium.com/@ArmanSo/take-control-of-views-shadow-android-c6b35ba573e9