Facebook的会议取消对话框 [英] Facebook Session cancel dialog

问题描述

我的深化发展，使用此应用程式：的https：//developers.facebook .COM /文档/安卓/本地登录/

I'm developping an app that uses this : https://developers.facebook.com/docs/android/native-login/

我按照Facebook的开发教程，所以基本上我有会话检查，它会打开的对话​​框中，和我想要得到取消事件（当用户取消对话框Facebook的），但我对此没有方法

I have followed the Facebook dev tutorial, so basically I have the session check, it opens the dialog, and I'm trying to get the Cancel event (when the user cancel the facebook dialog) but I have no method on this.

也许能帮到你。

感谢

编辑：其实，即使我点击取消按钮，我还是正确接收到GraphUser。这是奇怪的。

Actually, even if I click the cancel button, I still receive the GraphUser correctly. That's weird.

推荐答案

使用的Andr​​oid SDK 3.5，我得到了通过异常取消的事件，如果状态更改回调与FacebookOperationCanceledException或FacebookAuthorizationException实例，它的取消事件：

With Android SDK 3.5, I got the cancel event via exception, if the state change callback with instance of FacebookOperationCanceledException or FacebookAuthorizationException, its an cancel event:

private void onSessionStateChange(Session session, SessionState state, Exception exception) {
    if (exception instanceof FacebookOperationCanceledException || exception instanceof FacebookAuthorizationException) {

        // Cancelled by user, show alert
        new AlertDialog.Builder(this).setTitle(R.string.cancelled).setMessage(R.string.permission_not_granted).setPositiveButton(R.string.ok, null).show();

    } else {

        Session session = Session.getActiveSession();
        if ((session != null && session.isOpened())) {
            // Session ready
        }
    }
}

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

它的工作好了。

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