Nice!! It's so cool to see a refresh animation in the app :D

A few notes:
-the RecyclerRefreshLayout needs to be constrained to the bottom of the leaderboard title since right now it's on top of it (maybe wrap in a constraint layout? or is there a better solution)
-can we use a custom animation with this framework? (i.e. like the custom ferris wheel animation Design made last year)

also, your gradle files besides should not be included in the PR besides build.gradle. You might need to make a new pull request to fix this though