readme

Sample shows how to use SSO with Facebook as well as Dialog Authentication.  You will want to use Dialog Authentication when using plug-ins such as like, send, comments, etc.
    
To force Dialog only authentication, modify the Facebook.java file as such:

public void authorize(Activity activity, String[] permissions,
            int activityCode, final DialogListener listener) {

        boolean singleSignOnStarted = false;

        mAuthDialogListener = listener;

        // Prefer single sign-on, where available.
//        if (activityCode >= 0) {
//            singleSignOnStarted = startSingleSignOn(activity, mAppId,
//                    permissions, activityCode);
//        }
        // Otherwise fall back to traditional dialog.
        if (!singleSignOnStarted) {
            startDialogAuth(activity, permissions);
        }
    }
    
This forces the dialog, thus allowing the cookie and session to carry over to web views inside your app.
    
Dependencies
https://github.com/facebook/facebook-android-sdk