I have a ListView with a custom ViewCell that displays articles. However when you select a item, it shows the material design ripple/selection effect.
I think you can remove it without a custom renderer.
You can set the BackgroundColor of your StackPanel to grey or whatever your list's or page's background color is.
BackgroundColor
StackPanel
Or you can use android styles to change the list view styles:
Set theme in AndroidManifest.xml
Create theme in styles.xml