如何在 Flutter 执行通知时运行后台代码

我使用flutter_local_notification和workmanager插件，以便在生成通知时运行一些后台代码(仅限Android).Ffltter_LOCAL_NOTIFICATION的初始化方式如下:

final StreamController<ReceivedNotification> didReceiveLocalNotificationSubject = StreamController<ReceivedNotification>.broadcast();

Future<void> init() async {
    await _configureLocalTimeZone();

    notificationAppLaunchDetails = await flutterLocalNotificationsPlugin.getNotificationAppLaunchDetails();
    if (notificationAppLaunchDetails!.didNotificationLaunchApp) {
      selectedNotificationPayload = notificationAppLaunchDetails!.notificationResponse?.payload;
    }

    const AndroidInitializationSettings initializationSettingsAndroid =
    AndroidInitializationSettings('@mipmap/ic_launcher');

    InitializationSettings initializationSettings = const InitializationSettings(
      android: initializationSettingsAndroid,
    );
    await flutterLocalNotificationsPlugin.initialize(
        initializationSettings,
        onDidReceiveNotificationResponse:
            (NotificationResponse notificationResponse) {
          switch (notificationResponse.notificationResponseType) {
            case NotificationResponseType.selectedNotification:
            case NotificationResponseType.selectedNotificationAction:
              // if (notificationResponse.actionId == navigationActionId) {
                selectNotificationSubject.add(notificationResponse.payload);
                selectedNotificationPayload = notificationResponse.payload;
              // }
                didReceiveLocalNotificationSubject.add(
                  ReceivedNotification(
                    id: notificationResponse.id!,
                    title: notificationResponse.actionId,
                    body: 'stuff',
                    payload: notificationResponse.payload,
                  ),
                );
              break;
          }
      },
      // onDidReceiveBackgroundNotificationResponse: notificationTapBackground,
    );

    _notificationsEnabled = await _isAndroidPermissionGranted();
    _notificationsEnabled = await _requestPermissions();
    _configureDidReceiveLocalNotificationSubject();
  }

下面是使用WorkManager执行的代码:

void _configureDidReceiveLocalNotificationSubject() {
    didReceiveLocalNotificationSubject.stream
        .listen((ReceivedNotification receivedNotification) async {
          var title = receivedNotification.title ?? 'UNKNOWN';
          Workmanager().registerOneOffTask(
            "my.simpleTask",
            "my.simpleTask",
            inputData: <String, dynamic>{
              'string': title,
            },
          );
        });
  }

目前，我对该代码有两个问题:

• 仅当用户轻触通知时，工作管理器的任务才会运行
• 如果用户首先终止应用程序，则即使生成(并点击)通知，也不会执行工作经理的任务

如何在应用程序终止或未终止的情况下，在生成通知(无需用户点击)后立即执行WorkManager的任务？