This app was mentioned in 4 comments, with an average of 2.50 upvotes
I use this app: https://play.google.com/store/apps/details?id=io.dwak.holohackernews.app
But OP's seems more full featured. It's really too bad that I can't disable ads though.
I accomplished this using a recycler view
You can see it in action here:
https://play.google.com/store/apps/details?id=io.dwak.holohackernews.app
There's this Hacker News Material Design app, but yours is nice too!