android google-drive-api google-drive-android-api

How to find a google Drive file by ID?

I'm working on a project where I need to upload a file to google Drive, to download it with another app.

I wanted to use the Drive Id, which I get by creating a file, to find it later, but this seems not to work.

I used an example from Google to get the ID:

  @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {

        switch (requestCode) {

            case REQUEST_CODE_CREATOR:
                if (resultCode == RESULT_OK) {

                     driveId =  data.getParcelableExtra(
                            OpenFileActivityBuilder.EXTRA_RESPONSE_DRIVE_ID);
                    showMessage("File created with ID: " + driveId);


                }

                break;
            default:
                super.onActivityResult(requestCode, resultCode, data);
                break;
        }
    }

This seemed to work so far, I am getting the Drive ID.

After this, I wanted to test it by using the Example "Files: get" from the Google Developers-page, where I got the following error:

 {
    "error": {
    "errors": [
    {
     "domain": "global",
     "reason": "notFound",
     "message": "File not found: CAESABiCASCQ1OnN-VMoAA==",
     "locationType": "other",
     "location": "file"
    }
     ],
     "code": 404,
     "message": "File not found: CAESABiCASCQ1OnN-VMoAA=="
     }
      }

It seems like this ID is not the id to find files.

There must be something I missed but i don't know what.

I am new to programming, especially to Google and Android and I would be very happy if any one can help me through their answers.

Thanks.

Solution

There are two problems with your approach.

1/ You can not use the DriveId for anything outside your Android App instance, you have to go for the ResourceId (see SO 32210970)

2/ The DriveId you're showing above is the 'preliminary' DriveId that is returned by GooPlaySvcs before the object is committed (uploaded) (see SO 22874657). Also, you can't get a valid ResourceId until it the object is committed.