How do I upload file to google drive from android

Question

I have spend more then one day but not getting any working solution which provide me uploading / downloading files to Google Drive.

I have tried

Answer 1

Google SDK is now android friendly. There is a full-access scope which gives you access to listing and reading all the drive files and which can be used in Android apps easily since our newer client library is Android-friendly! I also recommend watching this talk from Google IO which is explains how to integrate mobile apps with Drive

The library makes authentication easier

 /** Authorizes the installed application to access user's protected data. */
  private static Credential authorize() throws Exception {
    // load client secrets
    GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY,
        new InputStreamReader(CalendarSample.class.getResourceAsStream("/client_secrets.json")));
    // set up authorization code flow
    GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(
        httpTransport, JSON_FACTORY, clientSecrets,
        Collections.singleton(CalendarScopes.CALENDAR)).setDataStoreFactory(dataStoreFactory)
        .build();
    // authorize
    return new AuthorizationCodeInstalledApp(flow, new LocalServerReceiver()).authorize("user");
  } 

The library runs on Google App Engine

Media Upload

class CustomProgressListener implements MediaHttpUploaderProgressListener {
  public void progressChanged(MediaHttpUploader uploader) throws IOException {
    switch (uploader.getUploadState()) {
      case INITIATION_STARTED:
        System.out.println("Initiation has started!");
        break;
      case INITIATION_COMPLETE:
        System.out.println("Initiation is complete!");
        break;
      case MEDIA_IN_PROGRESS:
        System.out.println(uploader.getProgress());
        break;
      case MEDIA_COMPLETE:
        System.out.println("Upload is complete!");
    }
  }
}

File mediaFile = new File("/tmp/driveFile.jpg");
InputStreamContent mediaContent =
    new InputStreamContent("image/jpeg",
        new BufferedInputStream(new FileInputStream(mediaFile)));
mediaContent.setLength(mediaFile.length());

Drive.Files.Insert request = drive.files().insert(fileMetadata, mediaContent);
request.getMediaHttpUploader().setProgressListener(new CustomProgressListener());
request.execute();

You can also use the resumable media upload feature without the service-specific generated libraries. Here is an example:

File mediaFile = new File("/tmp/Test.jpg");
InputStreamContent mediaContent =
    new InputStreamContent("image/jpeg",
        new BufferedInputStream(new FileInputStream(mediaFile)));
mediaContent.setLength(mediaFile.length());

MediaHttpUploader uploader = new MediaHttpUploader(mediaContent, transport, httpRequestInitializer);
uploader.setProgressListener(new CustomProgressListener());
HttpResponse response = uploader.upload(requestUrl);
if (!response.isSuccessStatusCode()) {
  throw GoogleJsonResponseException(jsonFactory, response);
}