How to unschedule previously scheduled local notifications after some time?

Question

I am using flutter_local_notifications library to schedule local notifications every 1 hour. It is working as expected but now, I need a way to start/ stop the notification schedule (say, at push of a button).

I could not find anything regarding canceling scheduled notification requests in the documentation.

score 14 · Answer 1 · answered Nov 05 '20 at 03:10

Cancelling/deleting a notification

// cancel the notification with id value of zero
await flutterLocalNotificationsPlugin.cancel(0);
// 0 is your notification id

Cancelling/deleting all notifications

await flutterLocalNotificationsPlugin.cancelAll();

And yes, this can cancel current and future notification. Just make sure correct notification id.

score 5 · Answer 2 · answered Jun 16 '20 at 13:30

5

In the docs it is given in Cancelling/deleting a notification

await flutterLocalNotificationsPlugin.cancel(0);

answered Jun 16 '20 at 13:30

dev-aentgs

1,218
2
9
17

thank you for the reply but that is for canceling the notification with id value of zero – rya Jun 16 '20 at 14:21
ok, you need to cancel on the basis of some other parameter ? – dev-aentgs Jun 16 '20 at 14:24
no all .cancel() does is remove the notification from the notification tray. I want to be able to stop future notifications that will pop up every hour – rya Jun 17 '20 at 10:56
Are the notifications not stopping even after executing `await flutterLocalNotificationsPlugin.cancelAll();` ? – dev-aentgs Jun 17 '20 at 11:07
1

In the [API reference docs](https://pub.dev/documentation/flutter_local_notifications/latest/flutter_local_notifications/AndroidFlutterLocalNotificationsPlugin-class.html) there is a [deleteNotificationChannel method](https://pub.dev/documentation/flutter_local_notifications/latest/flutter_local_notifications/AndroidFlutterLocalNotificationsPlugin/deleteNotificationChannel.html) – dev-aentgs Jun 17 '20 at 11:14
@rya were you able to find a solution? – dev-aentgs Jun 24 '20 at 12:44
@dev-aentgs The `deleteNotificaitonChannel` method is used to remove a [notification channel](https://developer.android.com/training/notify-user/channels). The `cancel` or `cancelAll` methods should remove any scheduled and/or current notifications – Joshlucpoll Apr 06 '21 at 16:28

score 3 · Answer 3 · answered Apr 21 '22 at 07:09

I would do something like this:

final FlutterLocalNotificationsPlugin _flutterLocalNotificationsPlugin =
    FlutterLocalNotificationsPlugin();
// Below will give you any unpresented/scheduled notifications
final List<PendingNotificationRequest> pendingNotificationRequests =
    await _flutterLocalNotificationsPlugin.pendingNotificationRequests();
for (var _pendingRequest in pendingNotificationRequests) {
  _flutterLocalNotificationsPlugin.cancel(_pendingRequest.id);
}

Here _pendingRequest.id will give you the required notification id to cancel the specific notification request. This is tested in Android. Will update the status on iOS soon.

This is perfect if you don't want to delete the existing notification if it has already happened. — Ricky Kresslein, Sep 08 '22 at 17:18

iloveeating · Answer 4 · 2022-09-07T08:12:00.767

1

await flutterLocalNotificationsPlugin.cancelAll(); //cancel future note
await flutterLocalNotificationsPlugin.pendingNotificationRequests(); //restart note

And your notification will show again.

edited Sep 07 '22 at 08:12

answered Aug 30 '22 at 15:37

iloveeating

11
2

score 1 · Answer 5 · answered Dec 15 '22 at 03:07

If you want to cancel all notifications, then you have to do that using the following:

await flutterLocalNotificationsPlugin.cancelAll();

Also, if you want to cancel a specific notification, you can do this by using a specific ID of your notification:

await flutterLocalNotificationsPlugin.cancel(0);  // 0 is your notification id

Where this notification ID came from ??

While you are declaring your notification to show on your screen you have to add some data like given below:

await _flutterLocalNotificationsPlugin.show(
        0, // this is the notification id
        message.notification.title,
        message.notification.body,
        notificationDetails,
        payload: jsonEncode(message.data),
      );

Here I am using Flutter Local Notification Plugin to show notifications!!!

Hope this will solve your problem.

How to unschedule previously scheduled local notifications after some time?

5 Answers5