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POGoogle Drive for Android SDK Doesn't List Files
 

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  1. POGoogle Drive for Android SDK Doesn't List Files
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    <p>I've got a really odd problem with the Google Drive Android SDK. I've been using it for several months now, and until last week it performed perfectly. However, there is now a really odd error, which doesn't occur all the time but does 9 out of 10 times.</p> <p>I'm trying to list the user's files and folders stored in a particular Google Drive folder. When I'm trying to use the method Drive.files().list().execute(), 9 out of 10 times literally nothing happens. The method just hangs, and even if I leave it for an hour, it just remains doing... nothing.</p> <p>The code I'm using is below - all of this being run within the doInBackground of an AsyncTask. I've checked credentials - they are all fine, as is the app's certificate's SHA1 hash. No exceptions are thrown. Google searches have yielded nothing. Here is the particular bit of code that's bothering me:</p> <pre><code> try { GoogleAccountCredential credential = GoogleAccountCredential.usingOAuth2( SettingsActivity.this, Arrays.asList(DriveScopes.DRIVE)); if (googleAccountName != null &amp;&amp; googleAccountName.length() &gt; 0) { credential.setSelectedAccountName(googleAccountName); Drive service = new Drive.Builder(AndroidHttp.newCompatibleTransport(), new GsonFactory(), credential).build(); service.files().list().execute(); // Google Drive fails here } else { // ... } } catch (final UserRecoverableAuthIOException e) { // Authorisation Needed runOnUiThread(new Runnable() { @Override public void run() { try { startActivityForResult(e.getIntent(), REQUEST_AUTHORISE_GDRIVE); } catch (Exception e) { Log.e("SettingsActivity: Google Drive", "Unable to add Google Drive account due to Exception after trying to show the Google Drive authroise request intent, as the UserRecoverableIOException was originally thrown. Error message:\n" + e.getMessage()); } } }); Log.d("SettingsActivity: Google Drive", "UserRecoverableAuthIOException when trying to add Google Drive account. This is normal if this is the first time the user has tried to use Google Drive. Error message:\n" + e.getMessage()); return; } catch (Exception e) { Log.e("SettingsActivity: Google Drive", "Unable to add Google Drive account. Error message:\n" + e.getMessage()); return; } </code></pre> <p>I'm using Drive API v2. Thanks everyone!</p> <h1>Edit</h1> <p>Having played around a bit more, it turns out this isn't for just listing files. Trying to interact with any file on Google Drive behaves the same way - deleting, downloading, creating... Anything! I have also noticed that putting the device in aeroplane mode so it has not internet access makes no difference either: Google Drive doesn't throw an exception, or even return, it just freezes the thread it's on.</p> <p>I've updated to the very latest Drive API lib but that hasn't helped. I remembered that the error happened soon after I added the JSch SSH library to the project, so I removed that, but it made no difference. Removing and re-adding the Drive API v2 has made no difference either, and nor has cleaning the project.</p> <h1>Edit 2</h1> <p>I've found something which may be significant. On the Google Developer console, I had some Drive errors recorded as follows:</p> <pre><code>TOP ERRORS: Requests % Requests Methods Error codes 18 38.30% drive.files.list 400 14 29.79% drive.files.insert 500 11 23.40% drive.files.update 500 4 8.51% drive.files.get 400 </code></pre> <p>Do you reckon these are the errors? How could I fix them? Thanks</p>
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