BlackBerry forcefully interupt the facebook connect

I am using the following method to share my app data but if the user clicks back on the main screen, I would like it to forcefully close facebook connect.

public class FacebookIntegration {

    private static User user;
    private static String NEXT_URL = "http://www.facebook.com/connect/login_success.html";
    private static String APPLICATION_ID ;
    private static String APPLICATION_SECRET ;
    private static String[] PERMISSIONS = Facebook.Permissions.USER_DATA_PERMISSIONS;
    public static boolean posted = false;
    private static String[] postPermissions = Facebook.Permissions.PUBLISHING_PERMISSIONS;
    private static SharePopup _obj;
    private static boolean exception = false;

    public static boolean integrate(SharePopup obj) {

        _obj = obj;
        ApplicationSettings as = new ApplicationSettings(NEXT_URL, APPLICATION_ID, APPLICATION_SECRET, PERMISSIONS);
        ApplicationSettings as2 = new ApplicationSettings(null, APPLICATION_ID, APPLICATION_SECRET, PERMISSIONS);

        Facebook fb = Facebook.getInstance(as);

         _obj.close();
        try {
            user = fb.getCurrentUser();
        } catch (FacebookException e1) {

            e1.printStackTrace();
            exception = true;
        }
        if (!exception) {
            try {

                fb.getCurrentUser(new BasicAsyncCallback() {
                    public void onComplete(com.blackberry.facebook.inf.Object[] objects, final java.lang.Object state) {
                        FacebookIntegration.this.user = (User) objects[0];
                        Vector prayerTimes = (Vector) PrayerTimesDTO.getPrayerTimes();
                        StringBuffer post = new StringBuffer("avbc");

                        user.publishStatus(post.toString());

                        posted = true;

                        user.publishPost("stream.publish", "published through the Facebook API", APPLICATION_SECRET, null, null, null, user.getId());

                    }

                    public void onException(final Exception e, final java.lang.Object state) {
                        e.printStackTrace();

                    }
                });

            } catch (FacebookException e) {
                e.printStackTrace();
            } finally {
                fb.logout(true);


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        }
        return true;

    }


}

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I have been pondering this since you first posted it. I don't think anyone can help you because we would have to know what the Facebook object does. That is probly where you will have to close the connection.

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A. In your MainScreen class override the onClose function:

public boolean onClose() {
     FacebookIntegration.closeConnection(); 
     return super.onClose();
}

B. Change FacebookIntegration as follows:

1. Put Facebook object as static field in the class
   

   private static Facebook fb;

2. Change the line of: Facebook fb = Facebook.getInstance(as);
   to be fb = Facebook.getInstance(as);

3. Add the closeConnection method to FacebookIntegration as follows:
   

   public static void closeConnection() { fb.logout(true); }