private Observable<Void> saveGameInformationList(
List<GameInformation> gameInformationList, int difficulty) {
return gsonController
.listToJson(gameInformationList)
.map(json -> sharedPreferences.edit().putString(getListName(difficulty), json).commit())
.map(x -> null);
}
@Override
public Observable<List<GameInformation>> getGameInformationList(int difficulty) {
return Observable.just(sharedPreferences.getString(getListName(difficulty), "[]"))
.flatMap(json -> gsonController.listFromJson(json, GameInformation[].class));
}
