Update (increment/decrement) leaderboard score in Google Play Games

Question

I used the following code to submit the user's score to Google Play Games:

if(getApiClient().isConnected()){
            Games.Leaderboards.submitScore(getApiClient(), getString(R.string.number_guesses_leaderboard),newScore);
}

but this doesn't increment the score of leaderboard, it just replaces the score. The same value is shown the all the time. newScore is the amount that I want to increment the current score by.

Answer 1

You will need to save the current score locally using SharedPreferences, for example, and then submit the new total score to the Google Play Games service. Have a look a this sample by the Google Play Games team, specifically their use of an AccomplishmentsOutbox where they are storing the score locally until it is transmitted to the API.