Custom View with Layer-List background drawable renders black screen

For those interested, I found the solution.

I had defined the shape drawable as including only a stroke definition. Without any other inputs, this causes the fill color to be inferred as black.

In the end, a Layer-List drawable is not required at all. Instead, add a solid fill definition to the shape layer with color Transparent and it works just fine.

<?xml version="1.0" encoding="utf-8"?>

<shape xmlns:android=""
    <corners android:radius="@dimen/corner_radius" />
    <stroke android:width="1dp"
        android:color="@color/background_green" />
    <solid android:color="@android:color/transparent" />