Facebook登录按钮android在注销时不调用session.callback方法

我正在创建一个小型android应用程序，并添加了一个facebook图书登录按钮。 问题是，当我单击“登录”按钮时，它调用会话。回调方法创建一个会话，一切正常，但当我单击“注销”按钮时，它不会再次调用回调函数。会话变量是关闭的，因为当我将我的应用程序从后台转到前台时，它会显示我在注销时想要的正确UI

下面是我正在使用的代码片段

private void onSessionStateChange(Session session, SessionState state,
            Exception exception) {
        try {
            if (state.isOpened()) {
                if(!session.getPermissions().containsAll(SetPermission()))
                    session.requestNewReadPermissions(new NewPermissionsRequest(MainFragment.this, SetPermission()));
                CommonFacebookClass.session = session;
                m_session = session;
                SetBeforeLoginControlVIsiblity(false);
                //HideControls(false);

            } else if (state.isClosed()) {
                Log.i(TAG, "Logged out...");
                //HideControls(true);
                SetBeforeLoginControlVIsiblity(true);           

            } 

        } catch (Exception ex) {
            Utilities.PrintMessageInConsole("NipunError" + ex.getMessage());
        }
    }

    private Session.StatusCallback callback = new Session.StatusCallback() {
        @Override
        public void call(Session session, SessionState state,
                Exception exception) {
            onSessionStateChange(session, state, exception);
        }
    };

@Override
    public void onResume() {
        super.onResume();

        // For scenarios where the main activity is launched and user
        // session is not null, the session state change notification
        // may not be triggered. Trigger it if it's open/closed.
        Session session = Session.getActiveSession();
        if (session != null && (session.isOpened() || session.isClosed())) {
            onSessionStateChange(session, session.getState(), null);
        }

    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        uiHelper.onActivityResult(requestCode, resultCode, data);
    }

    @Override
    public void onPause() {
        super.onPause();
        uiHelper.onPause();
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        uiHelper.onDestroy();
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        uiHelper.onSaveInstanceState(outState);
    }

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我哪里出错了？

试试这个：当注销按钮点击时

            SessionManager.clear(getApplicationContext());
            Intent in = new Intent(getApplicationContext(), Login.class);
            startActivity(in);
            finish();

使用的是会话管理器类：

     public static void clear(Context context) {
    Editor editor = context.getSharedPreferences(KEY, Login.MODE_PRIVATE)
            .edit();
    editor.clear();
    editor.commit();
}

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我正在使用facebook登录按钮。根据这个链接，这可能是一个暂时的问题。我重启了我的设备，一切正常。