事实上，成就缓冲区将包含所有你想要的数据（如果状态code返回的 STATUS_OK ）。您可以通过加载按需从你的活动（延伸每例如BaseGameActivity）所取得的成就：

Indeed, the Achievement buffer will contain all the data you want (if the statusCode returned is STATUS_OK). You can load the achievements "on-demand" from your activity (which extends BaseGameActivity per example) via:

getGamesClient().loadAchievements(new OnAchievementsLoadedListener() {
    @Override
    public void onAchievementsLoaded(int statusCode, AchievementBuffer buffer) {
        if (statusCode == GamesClient.STATUS_OK) {
            int achievementsCount    = buffer.getCount();

            [...]

        }
        buffer.close();
    }
});

和不要忘记关闭缓冲区。

And do not forget to close the buffer.