如何在Android中获取google plus的刷新令牌？

Question

I am using following code to get the access token for google plus. Is there a way to get the refresh token so that I can access the google API offline from the web server.

String accountName = params[0];
String scopes = "oauth2:profile email";
String token = null;
try {
    token = GoogleAuthUtil.getToken(getApplicationContext(), accountName, scopes);
} catch (IOException e) {
    Log.e(TAG, e.getMessage());
} catch (UserRecoverableAuthException e) {
    startActivityForResult(e.getIntent(), REQ_SIGN_IN_REQUIRED);
} catch (GoogleAuthException e) {
    Log.e(TAG, e.getMessage());
}

Answer 1

This link very clearly explains the api you need to hit to get token and referesh token for your server side polling.

you would receive a response like so.

{
  "access_token" : "ya29.AHES6ZSuY8f6WFLswSv0HELP2J4cCvFSj-8GiZM0Pr6cgXU",
  "token_type" : "Bearer",
  "expires_in" : 3600,
  "refresh_token" : "1/551G1yXUqgkDGnkfFk6ZbjMLMDIMxo3JFc8lY8CAR-Q"
}

you would do well to read this guide when playing around with tokens in cross platform scenario.