Question

我正在使用Google Play服务排行榜上传用户的分数。有没有办法以编程方式检索用户的分数？

我的用例是我想运行乘数游戏，其中用户的级别根据他们的胜利/失败而上升和下降（有点像stackoverflow声誉）。我需要检索旧分数以上传新的修改分数。

我该怎么做？我没有在教程的任何地方看到这一点。

由于

Answer 1

理论上，你可以做类似的事情：

gameHelper.getGamesClient().loadLeaderboardMetadata(this, false);

/**
 * Called when the data is loaded
 */

@Override
public void onLeaderboardMetadataLoaded(int statusCode, LeaderboardBuffer leaderboards) {

    // If the fragment is currently added to an activity
    if (isAdded()) {

        // There's been an error on leaderboards loading
        if (statusCode != GamesClient.STATUS_OK) {
            if (leaderboards != null) leaderboards.close();
            // Error
            return;
        }

        ArrayList<LeaderboardVariant> variants;

        Iterator<Leaderboard> it = leaderboards.iterator();
        while (it.hasNext()) {

            Leaderboard leaderboard = it.next();
            final String id = leaderboard.getLeaderboardId();
            variants = leaderboard.getVariants();

            // For each leaderboard
            for (LeaderboardVariant variant: variants) {

                if (variant.getCollection() == LeaderboardVariant.COLLECTION_PUBLIC &&
                    variant.getTimeSpan() == LeaderboardVariant.TIME_SPAN_ALL_TIME) {

                    int rawScore = (int) variant.getRawPlayerScore();
                }
            }
        }               
    }
    if (leaderboards != null) leaderboards.close();
}

...但实际情况是，您不能因为数据已过时，请参阅此处：Play games loadLeaderboardMetadata() returns outdated data

这可能是个错误，但因为没有提交游戏错误的地方......

无论如何，为什么不保留您提交的分数的本地副本？这不是更简单的方法吗？

[UPDATE] 您似乎可以使用loadCurrentPlayerLeaderboardScore而不是loadLeaderboardMetadata方法来实现您的目标。那个似乎没有返回过时的数据。检查here

Answer 2

如果有人仍在寻找解决方案，根据最新的android版本，上面答案中描述的方法现已弃用。

最新的操作方法如下：

private LeaderboardsClient mLeaderboardsClient = Games.getLeaderboardsClient(this, googleSignInAccount);    

private void updateLeaderboards(final String leaderboardId) {
        mLeaderboardsClient.loadCurrentPlayerLeaderboardScore(
                leaderboardId,
                LeaderboardVariant.TIME_SPAN_ALL_TIME,
                LeaderboardVariant.COLLECTION_PUBLIC
        ).addOnSuccessListener(new OnSuccessListener<AnnotatedData<LeaderboardScore>>() {
            @Override
            public void onSuccess(AnnotatedData<LeaderboardScore> leaderboardScoreAnnotatedData) {
                if (leaderboardScoreAnnotatedData.get() == null)
                    mLeaderboardsClient.submitScore(leaderboardId, 1);
                else {
                    long currentscore = leaderboardScoreAnnotatedData.get().getRawScore();
                    mLeaderboardsClient.submitScore(leaderboardId, currentscore + 1);
                }
            }
        });
    }

如何从排行榜中检索用户分数

2 个答案: