Use refresh token if auth token expired in account authenticator

android api authentication access-token accountmanager

You can save the refresh token into your account's user data when you first add your account using:

Bundle userdata = new Bundle;userdata.putString("refreshToken", refreshToken);mAccountManager.addAccountExplicitly (account, password, userdata);

You can also set the userdata after adding the account by calling:

mAccountManager.setUserData(account, "refreshToken", refreshToken);

When you access token is expired you can retrieve your refresh token by calling:

String refreshToken = mAccountManager.getUserData(account, "refreshToken");

Use the refreshToken to retrieve a new access token.

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