Function that actually schedules a notification

scheduleNotification.dart

  Future _scheduleNotification({
    BuildContext context,
    int id,
    String time,
    Duration subtract,
  }) async {
    await ScopedModel.of<AppModel>(context).notifications.schedule(
          id,
          FlutterI18n.translate(context, 'spacex.notifications.launches.title'),
          FlutterI18n.translate(
            context,
            'spacex.notifications.launches.body',
            {
              'rocket': launch.rocket.name,
              'payload': launch.rocket.secondStage.getPayload(0).id,
              'orbit': launch.rocket.secondStage.getPayload(0).orbit,
              'time': time,
            },
          ),
          launch.launchDate.subtract(subtract),
          NotificationDetails(
            AndroidNotificationDetails(
              'channel.launches',
              FlutterI18n.translate(
                context,
                'spacex.notifications.channel.launches.title',
              ),
              FlutterI18n.translate(
                context,
                'spacex.notifications.channel.launches.description',
              ),
              importance: Importance.High,
              color: Theme.of(context).primaryColor,
            ),
            IOSNotificationDetails(),
          ),
        );
  }