AWS Uploading File Resume问题

Question

我正在使用下面的代码将文件上传到AWS，它正在上传，但是当互联网连接中断时，由于它不恢复上传过程，我是否缺少任何要添加的内容？

 transferManager = Util.getTransferManager(this);
            PutObjectRequest request = new PutObjectRequest(HttpUrls.VIDEO_BUCKET_NAME, "original/" + hashkey + ".mp4", file);
            request.setCannedAcl(CannedAccessControlList.PublicReadWrite);
            // To receive notifications when bytes are transferred, add a
            // ProgressListener to your request.
            request.setProgressListener(new com.amazonaws.services.s3.model.ProgressListener() {
                @Override
                public void progressChanged(com.amazonaws.services.s3.model.ProgressEvent progressEvent) {

                    totalByteRead = totalByteRead + progressEvent.getBytesTransferred();
                    final int percentage = (int) ((totalByteRead * 100) / totalSize);

                    handler.post(new Runnable() {
                        @Override
                        public void run() {
                            if (isUploadAborted == false) {
                                notificationView.setProgressBar(R.id.progressBarUpload, 100, (int) percentage, false);
                                notificationView.setTextViewText(R.id.textpercentRatio, percentage + "%");

                                notification.contentView = notificationView;
                                notificationManager.notify(NOTIFICATION_ID, notification);
                            }
                        }
                    });
                    com.orhanobut.logger.Logger.d("LiveVideoUpload  " + percentage);

                    if (progressEvent.getEventCode() == ProgressEvent.COMPLETED_EVENT_CODE) {
                        uploadNotInProgress = true;
                        com.orhanobut.logger.Logger.d("LiveVideo is UplaodDone ");
                        uploadLiveStream(file);
                    }
                }
            });

            // TransferManager processes all transfers asynchronously,
            // so this call returns immediately.
            upload = transferManager.upload(request);

            // Optionally, you can wait for the upload to finish before continuing.
            upload.waitForCompletion();