Callback for Android refreshCurrentAccessTokenAsync in Facebook Android SDK 4.1+

Question

In Android, I\'m calling refreshCurrentAccessTokenAsync() but there doesn\'t appear to be a callback. I\'ve registered callbackManager before invoking re

Answer 1

Sadly this is because of the poor documentation of the SDK by FaceBook.

You have to set a tracker for AccessToken, similar to what you'd do with Profile.

My code for that is as below:

private AccessTokenTracker mAccessTokenTracker;

private void loginToMyFbApp() {
    FacebookSdk.sdkInitialize(this);
    if (AccessToken.getCurrentAccessToken() != null) {
        mAccessTokenTracker = new AccessTokenTracker() {
            @Override
            protected void onCurrentAccessTokenChanged(AccessToken oldAccessToken, AccessToken currentAccessToken) {
                mAccessTokenTracker.stopTracking();
                if(currentAccessToken == null) {
                    //(the user has revoked your permissions -
                    //by going to his settings and deleted your app)
                    //do the simple login to FaceBook
                }
                else {
                    //you've got the new access token now.
                    //AccessToken.getToken() could be same for both
                    //parameters but you should only use "currentAccessToken"
                }
            }
        };
        AccessToken.refreshCurrentAccessTokenAsync();
    }
    else {
        //do the simple login to FaceBook
    }
}

Edit

Removed startTracking() call as rightly pointed out by Astrount in the comment below.