问题
I'm using the new Google Drive Android API. This is the demo code that I've copied from Google's android-samples repo.
GoogleSignInAccount signInAccount = GoogleSignIn.getLastSignedInAccount(this);
if (signInAccount != null && signInAccount.getGrantedScopes().containsAll(requiredScopes)) {
initializeDriveClient(signInAccount);
}
else
{ ... }
The issue I'm facing is, even if I remove the app from Drive, getLastSignedInAccount() is still returning the account and the operations (such as adding a file) on the accounts are still succeeding. Returning the GoogleSignInAccount object is fine, I suppose, but it should not allow the operations on it. I double checked in Drive, there are no files getting added when the API returns success (since I've unlinked the app). What is going wrong here?
And yes it worked when I manually synced the account on my device. In that case, though getLastSignedInAccount() returned the object, the operations did fail.
PS: I'm requesting SCOPE_FILE and SCOPE_APPFOLDER scopes.
回答1:
This looks like the desired behaivour.
Only after the sync, will the GoogleSignIn.getLastSignedInAccount(this) get to know, not before that. As you can see, this method is non-blocking.
As an improvement, the API calls for performing operations should return something like a 403 UNAUTHORIZED
来源：https://stackoverflow.com/questions/50319379/google-drive-android-api-returns-success-even-after-removing-the-app