Amazon S3 TransferUtility在应用程序关闭时停止,即使在WorkManager中也是如此

public class TestPhotoUploadManager extends BaseWorker {

    private FileTransferUtil fileTransferUtil;

    @NonNull
    @Override
    public Result doWork() {
        try {
            fileTransferUtil = new FileTransferUtil();

            String filePath = getExtras().getInputData().getString(CommonTags.URL);
            if (filePath != null) {
                uploadWithTransferUtility(filePath);
            }

            return workerResult[0];
        } catch (Exception e) {
            e.printStackTrace();
            setWorkerResult(Result.FAILURE);
            return workerResult[0];
        }
    }

    private void uploadWithTransferUtility(String filePath) {

        TransferUtility transferUtility = fileTransferUtil.getTransferUtility(getApplicationContext());

        String fileName = filePath.substring(filePath.lastIndexOf("/"));

        AppLogger.d("usm_s3_file", "name= " + fileName + " ,path= " + filePath);

        String folderName = AmazonHelper.BUCKET_NAME;

        TransferObserver uploadObserver =
                transferUtility.upload(AmazonHelper.BUCKET_NAME, folderName + fileName, new File(filePath));

        uploadObserver.setTransferListener(new TransferListener() {
            @Override
            public void onError(int id, Exception e) {
                setWorkerResult(Result.FAILURE);
            }

            @Override
            public void onProgressChanged(int id, long bytesCurrent, long bytesTotal) {
            }

            @Override
            public void onStateChanged(int id, TransferState newState) {

                switch (newState) {
                    case WAITING_FOR_NETWORK:
                    case PENDING_NETWORK_DISCONNECT:
                        setWorkerResult(Result.RETRY);
                        break;
                    case COMPLETED:
                        setWorkerResult(Result.SUCCESS);
                        break;
                    case WAITING:
                    case IN_PROGRESS:
                        break;
                    default:
                        setWorkerResult(Result.FAILURE);
                        break;
                }
            }
        });
    }