Android

Question

我可以上传很多文件到云端硬盘，但我不知道任务何时完成。结果回调给我确定，但如果我关闭互联网连接，任务就会中断。这是我正在使用的代码：

    void createFile(DriveFolder pFldr, final String titl, final String mime, final File file) {
    DriveId dId = null;
    setProgressing(true);
    if (mGoogleApiClient != null && mGoogleApiClient.isConnected() && titl != null && mime != null && file != null) try {

        final DriveFolder parent =  pFldr != null ? pFldr : Drive.DriveApi.getRootFolder(mGoogleApiClient);

        Drive.DriveApi.newDriveContents(getGoogleApiClient()).setResultCallback(new ResultCallback<DriveApi.DriveContentsResult>() {
            @Override public void onResult(DriveApi.DriveContentsResult driveContentsResult) {
                DriveContents cont = driveContentsResult != null && driveContentsResult.getStatus().isSuccess() ?
                        driveContentsResult.getDriveContents() : null;
                if (cont != null) try {
                    OutputStream oos = cont.getOutputStream();
                    if (oos != null) try {
                        InputStream is = new FileInputStream(file);
                        byte[] buf = new byte[4096];
                        int c;
                        while ((c = is.read(buf, 0, buf.length)) > 0) {
                            oos.write(buf, 0, c);
                            oos.flush();
                        }
                    }
                    finally { oos.close();}

                    MetadataChangeSet meta = new MetadataChangeSet.Builder().setTitle(titl).setMimeType(mime).build();

                    parent.createFile(mGoogleApiClient, meta, cont).setResultCallback(new ResultCallback<DriveFolder.DriveFileResult>() {
                        @Override public void onResult(DriveFolder.DriveFileResult driveFileResult) {
                            DriveFile dFil = driveFileResult != null && driveFileResult.getStatus().isSuccess() ?
                                    driveFileResult.getDriveFile() : null;
                            if (dFil != null) {
                                Log.d(TAG,"photo "+count+" uploaded" );
                                count --;
                                if(count == 0){
                                    // is the task completed?
                                }

                            } else {
                                Log.d(TAG,"error during upload photo " + count );
                            }
                        }
                    });
                } catch (Exception e)  {
                    e.printStackTrace();
                    ShowErrorHelper.showErrorDialog(UploadActivity.this, e);
                }
            }
        });
    } catch (Exception e) {
        e.printStackTrace();
        ShowErrorHelper.showErrorDialog(UploadActivity.this, e);
    }
}

我想知道什么时候确定所有文件都已经上传到云端（这样我就可以在本地删除它们）。

Answer 1

您正在使用 Google 驱动器 Android API。您使用 GDAA 创建的任何驱动器文件都在设备上创建。一旦创建它们，您就可以删除原始文件。一段时间后，GDAA 会将 Drive File 与云端同步。这最后一个方面对您来说是不可见的，可以忽略。

Android - Google Drive Api: 如何知道上传任务何时完成？

Android - Google Drive Api: how to know when upload task is completed?

java

google-drive-api

google-drive-android-api