A Flutter package to get delivered notifications from the notification center on Android, iOS and MacOS and cancel them.

UNUserNotificationCenter is used on iOS and MacOS and NotificationManager on Android.

Usage

Get notifications:

List<DeliveredNotification?> notifications = await NotificationsUtils().getDeliveredNotifications();
// `whereType` is used to take only not nullable notifications. 
// That's because `pigeon` package doesn't support non-nullable generic types.
for (final notification in notifications.whereType<DeliveredNotification>())
  print(
    "id: ${notification.id}\n"
    "threadIdentifier: ${notification.threadIdentifier}\n"
    "title: ${notification.title}\n"
    "body: ${notification.body}\n"
    "payload map: ${notification.payload}\n",
    "androidTag: ${notification.androidTag}\n",
  );

Cancel delivered notifications:

// On Android notification id is an integer and on iOS it's a string.
// That's why NotificationId class is used.
final NotificationId notificationId = NotificationId(
  /*optional*/ androidId: 1,
  /*optional*/ iosId: "someId",
  /*optional*/ androidTag: "someTag",
);
NotificationsUtils().removeDeliveredNotifications([notificationId]);

Why is it exists?

Yeah, there is already great packages for notifications such as flutter_local_notifications and awesome_notifications.

But

• the awesome_notifications package doesn't support canceling delivered notifications at all.
• the flutter_local_notifications package can only cancel notifications that were created by it.