Google Play Games achievement unlocked popup not showing

Question

I\'m unlocking achievement using this simple method from developers docs:

Games.Achievements.unlock(getApiClient(), \"my_achievement_id\");

Answer 1

Jacek and user3782779 answers didn't work for me, I had to do the following:

GamesClient gamesClient = Games.getGamesClient(this, GoogleSignIn.getLastSignedInAccount(this));
gamesClient.setViewForPopups(findViewById(android.R.id.content));
gamesClient.setGravityForPopups(Gravity.TOP | Gravity.CENTER_HORIZONTAL);