Google Drive SDK - Uploading Image, OCR, Download Result

Question

So ultimately I\'m trying to upload images that I want Google to OCR. Then I want to be able to get the results of the OCR back to my Android app. I have my images uploading

Answer 1

Well I answered my own question yet again, sort of. Basically since this seems to be a web url and not an API call I can make, then it's not responding with a 401 if it's unauthenticated. So basically the response I was getting is the HTML for the login page. Apparently using DriveRequest does not automatically handle authentication like I thought it would. So I have it working by adding authentication manually to an HttpClient GET call.

But is there a way to do what I'm trying to do with the actual API? So I can deal with response codes?

Here's what I did to download the text/plain representation of the file. Here's a caveat: given that the image I was uploading was taken on a cell phone camera using the default camera app, the default dpi and/or jpeg compression caused the OCR to not work very well. Anyway, here's the code I used. Just basic HttpClient stuff

                String imageAsTextUrl = file.getExportLinks().get("text/plain");

                HttpClient client = new DefaultHttpClient();
                HttpGet get = new HttpGet(imageAsTextUrl);
                get.setHeader("Authorization", "Bearer " + token);
                HttpResponse response = client.execute(get);

                StringBuffer sb = new StringBuffer();

                BufferedReader in = null;
                try {
                    in = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
                    String str;
                    while ((str = in.readLine()) != null) {
                        sb.append(str);
                    }
                }
                finally {
                    if (in != null) {
                        in.close();
                    }
                }

                // Send data to new Intent to display: 
                Intent intent = new Intent(UploadImageService.this, VerifyTextActivity.class);
                intent.putExtra("ocrText", sb.toString());
                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                startActivity(intent);