Question

由于Google Play游戏服务API的最新更改，我被迫替换了Android应用中所有不推荐使用的代码。我正在按照https://developers.google.com/games/services/android/savedgames中的Google指南进行操作，目前尚不清楚如何将快照传递给此函数以写入要保存的数据。

private Task writeSnapshot(Snapshot snapshot, byte[] data, Bitmap coverImage, String desc) {
    // Set the data payload for the snapshot
      snapshot.getSnapshotContents().writeBytes(data);
      // Create the change operation
      SnapshotMetadataChange metadataChange = new SnapshotMetadataChange.Builder()
          .setCoverImage(coverImage)
          .setDescription(desc)
          .build();
      SnapshotsClient snapshotsClient =
          Games.getSnapshotsClient(this, GoogleSignIn.getLastSignedInAccount(this));
      // Commit the operation
      return snapshotsClient.commitAndClose(snapshot, metadataChange);
}

你能帮我吗？我认为应该在文档中添加一个使用此功能的示例，以使所有内容更加清晰，并帮助需要从头开始学习此功能的开发人员。

Answer 1

好，我意识到该怎么做。基本上，打开快照客户端时，必须使用continueWith并从任务中获取快照。

考虑到您有适当的封面图片和说明以及登录时使用的Google帐户

mAccount = GoogleSignIn.getLastSignedInAccount(activity);

这是代码：

SnapshotsClient snapshotsClient = Games.getSnapshotsClient(activity, mAccount);
int conflictResolutionPolicy = SnapshotsClient.RESOLUTION_POLICY_MOST_RECENTLY_MODIFIED;
snapshotsClient.open(getSaveFileName(), true, conflictResolutionPolicy)
    .addOnFailureListener(new OnFailureListener() {
        @Override
        public void onFailure(@NonNull Exception e) {
            Log.e(TAG, "Error", e);
        }
    }).continueWith(new Continuation<SnapshotsClient.DataOrConflict<Snapshot>, byte[]>() {
        @Override
        public byte[] then(@NonNull Task<SnapshotsClient.DataOrConflict<Snapshot>> task) 
                throws Exception {
            Snapshot snapshot = task.getResult().getData();
            snapshot.getSnapshotContents().writeBytes(getSaveGameData());
            SnapshotMetadataChange metadataChange = new SnapshotMetadataChange.Builder()
                .setCoverImage(coverImage)
                .setDescription(desc) 
                .build();
            SnapshotsClient snapshotsClient = Games.getSnapshotsClient(activity, mAccount);
            snapshotsClient.commitAndClose(snapshot, metadataChange);
            return null;
        }
    });

Google Play游戏服务：编写保存的游戏

1 个答案: