android: shape corners do not work when setting individual corners

Question

I need to have a background which has rounded bottom left/right coners(but not top left/right ones), below is my xml file:

Answer 1

The above solutions didn't work for me, but I found a solution online that did work: (https://medium.com/@iamsadesh/android-ui-creating-a-layout-rounded-only-in-the-top-d60514ccab77)

This is for rounding just the top corners:

val image = findViewById(R.id.image)
val curveRadius = 20F

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {

    image.outlineProvider = object : ViewOutlineProvider() {

        @RequiresApi(Build.VERSION_CODES.LOLLIPOP)
        override fun getOutline(view: View?, outline: Outline?) {
            outline?.setRoundRect(0, 0, view!!.width, (view.height+curveRadius).toInt(), curveRadius)
        }
    }

    image.clipToOutline = true

}