Flutter Notification Manager #

Android Notification Manager plugin that allows to create and manage notification channels.

Create a notification channel #

You can create a notification channel by calling createNotificationChannel() :

const notificationManager = NotificationManager(); 
await notificationManager.createNotificationChannel(
  NotificationChannel(
    id: 'my_channel_01',
    name: 'My First Channel',
    importance: Importance.standard,
  ),
);

Recreating an existing notification channel with its original values performs no operation, so it's safe to call this code when starting an app.

❗ After you create a notification channel, you can't change the notification behaviors. However, you can still change a channel's name and description.

Read notification channel settings #

You can read notification channel setting by calling getNotificationChannel() or getNotificationChannels().

const notificationManager = NotificationManager();  
final myChannel = await notificationManager.getNotificationChannel('my_channel_01');  
final allChannels = await notificationManager.getNotificationChannels();

Open the notification channel settings #

Not supported yet.

Delete a notification channel #

You can delete notification channels by calling deleteNotificationChannel():

const notificationManager = NotificationManager();
notificationManager.deleteNotificationChannel('my_channel_01');

Create a notification channel group #

Each notification channel group requires an ID, which must be unique within your package, as well as a user-visible name.

const notificationManager = NotificationManager();
const group = NotificationChannelGroup(id: 'my_group_01', name: 'My first group');
notificationManager.createNotificationChannelGroup(group);

After you create a new group, you can assign a NotificationChannel to that group by passing groupId constructor parameter:

const channel = NotificationChannel(
  // ...
  groupId: 'my_group_01',
);

❗ Afater you submit the channel to the notification manager, you cannot change the association between notification channel and group.

Backward Compatibility #

The Support Library doesn't include notification channels APIs. As a result some functionalities are available only for specific Android versions. The minimum Android version required for NotificationManager to have any effect is 8.0 (API level 26).

The following tables show available operations based on the Android SDK version:

• NotificationManager

• NotificationChannel

• NotificationChannelGroup

Error Handling #

Calling any of NotificationManager methods on API level 25 and below will not have any effect and will also NOT result in any error. The same rule applies to any of the NotificationChannel and NotificationChannelGroup properties.

But there are some preconditions when that must be met when creating a NotificationChannel and NotificationChannelGroup:

• NotificationChannel

  • id must not be null, empty or blank

• NotificationChannelGroup

  • id must not be null, empty or blank
  • importance must not be Importance.unspecified

Breaking any of these will result in PlatformException with INVALID_ARGUMENT code.

You may also experience a PlatformException with UNKNOWN code. This exception should not happen and most likely indicates an edge case that has not yet been properly handled.

Read More #

• Android Developers docs
• Android NotificationManager docs
• Android NotificationChannel docs
• Android NotificationChannelGroup docs