How to get google drive account name?

Get Account Name / Email from Google Drive Android API

• I'm using the new https://developers.google.com/drive/android/auth and I can connect, and do http://stackoverflow.com/questions/22518044/create-or-open-native-google-documents-using-googledriveapi, but in order to use the SpreadsheetService, I need to extract the accountName/email from the signed in user. How do I do that? Here's the code where I connect the Google Drive API. It works fine. private void connect() { if (isGooglePlayServicesAvailable()) { if (mGoogleApiClient == null) { mGoogleApiClient = new GoogleApiClient.Builder(this) .addApi(Drive.API) .addScope(Drive.SCOPE_FILE) .addConnectionCallbacks(this) .addOnConnectionFailedListener(this) .build(); } // And, connect! if (!mGoogleApiClient.isConnecting() && !mGoogleApiClient.isConnected()) { mGoogleApiClient.connect(); writeLog("Connecting..."); } } } Here's where I'm using the SpreadsheetService API, but I need the account name to get the token. String accountName = "???"; // how do I get this From GoogleClientApi / mGoogleApiClient ? String accessToken = GoogleAuthUtil.getTokenWithNotification(GDriveActivity.this, accountName, scope, null); SpreadsheetService service = new SpreadsheetService("v1"); I have tried this adding this: String accountName = Plus.AccountApi.getAccountName(mGoogleApiClient); ... in the onConnected method, but it throws a NullPointerException. Also, here are my permissions: <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" /> <uses-permission android:name="android.permission.VIBRATE" /> <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.GET_ACCOUNTS" /> <uses-permission android:name="android.permission.NETWORK" /> <uses-permission android:name="android.permission.USE_CREDENTIALS" />

• Answer:

  I don't know, if it is the same, but I was dealing with a similar problem in http://stackoverflow.com/questions/21610239/how-do-i-switch-accounts-under-the-new-google-drive-android-api. Basically, since there is no 'getter' method in GDAA, you have to fetch the email/account from the first time the authentication loop goes through 'onActivityResult()' after 'onConnectionFailed()' and call on 'AccountPicker'. You save the email in your app and manage the account switching yourself. Please see this https://github.com/seanpjanson/EmailSwichActivity/blob/master/EmailSwitchActivity.java. It is outdated (libver 14, I believe) but the idea is there. The code that fetches the account name is in this method: @Override protected void onActivityResult(final int rqst, final int rslt, final Intent it) { switch (rqst) { case REQ_AUTH: if (rslt == Activity.RESULT_OK) // get email account selected by the user it.getStringExtra(AccountManager.KEY_ACCOUNT_NAME); break; } }