Facebook Android SDK logout listener

Question

i'm using facbook sdk in my application. when i logged in my application via facebook sdk, everything work perfectly, but when i open Facebook App and logout from Facebook App, my app still logged on. so how do i add a listener to listen logout event from Facebook SDK?

Answer 1

This is an old questions, but I wanted to update with an answer.

In Facebook API 4.0 (As that is current as of writing) You can use an AccessTokenTracker.

    AccessTokenTracker accessTokenTracker = new AccessTokenTracker() {
        @Override
        protected void onCurrentAccessTokenChanged(AccessToken accessToken, AccessToken accessToken2) {
            Log.d(TAG, "onCurrentAccessTokenChanged()");
            if (accessToken == null) {
                // Log in Logic
            } else if (accessToken2 == null) {
                // Log out logic
            }
        }
    };