android google drive api v3 media_in_progress无效

Question

我在android中使用谷歌adrive api版本3库。上传文件不是问题，但我没有获得媒体进行中的值来显示进度条。     我的代码是，

Drive.Files.Create create = mService.files().create(file, mediaContent);
MediaHttpUploader uploader = create.getMediaHttpUploader();
uploader.setDirectUploadEnabled(false);
uploader.setProgressListener(new MediaHttpUploaderProgressListener() {
    @Override
    public void progressChanged(MediaHttpUploader uploader) throws IOException {
        Intent intent = new Intent(AuthPreferences.DRIVE_FILE_UPLOAD_PROGRESS_LISTENER);
        switch (uploader.getUploadState()) {
            case INITIATION_STARTED:
                //postToDialog("Initiation Started");
                break;
            case INITIATION_COMPLETE:
                //postToDialog("Initiation Completed");
                break;
            case MEDIA_IN_PROGRESS:
                // postToDialog("Upload in progress");
                intent.putExtra(AuthPreferences.DRIVE_FILE_UPLOAD_PROGRESS, (int) uploader.getProgress());
                break;
            case MEDIA_COMPLETE:
                //postToDialog("Upload Completed!");
                intent.putExtra(AuthPreferences.DRIVE_FILE_UPLOAD_PROGRESS, 100);
                break;
            case NOT_STARTED:
                //postToDialog("Not Started!");
                break;
        }
        sendBroadcast(intent);
    }
});
file = create.execute();

在此，它正在触发INITIATION_STARTED，MEDIA_COMPLETE但未获得MEDIA_IN_PROGRESS。我也给了chunkSize但没用。我试过setDirectUploadEnabled都是真的＆amp;虚假但没用。它不起作用。版本3 API中是否有任何问题。