NotificationManagerCompat

public static final String ACTION_BIND_SIDE_CHANNEL = "android.support.BIND_NOTIFICATION_SIDE_CHANNEL"

Intent action to register for on a service to receive side channel notifications. The listening service must be in the same package as an enabled NotificationListenerService.

public static final String EXTRA_USE_SIDE_CHANNEL = "android.support.useSideChannel"

Notification extras key: if set to true, the posted notification should use the side channel for delivery instead of using notification manager.

public static final int IMPORTANCE_DEFAULT = 3

Default notification importance: shows everywhere, allowed to makes noise, but does not visually intrude.

public static final int IMPORTANCE_HIGH = 4

Higher notification importance: shows everywhere, allowed to makes noise and peek.

public static final int IMPORTANCE_LOW = 2

Low notification importance: shows everywhere, but is not intrusive.

public static final int IMPORTANCE_MAX = 5

Highest notification importance: shows everywhere, allowed to makes noise, peek, and use full screen intents.

public static final int IMPORTANCE_MIN = 1

Min notification importance: only shows in the shade, below the fold.

public static final int IMPORTANCE_NONE = 0

A notification with no importance: shows nowhere, is blocked.

public static final int IMPORTANCE_UNSPECIFIED = -1000

Value signifying that the user has not expressed an importance. This value is for persisting preferences, and should never be associated with an actual notification.

public static final int INTERRUPTION_FILTER_ALARMS = 4

Interruption filter constant - Alarms only interruption filter - all notifications except those of category CATEGORY_ALARM are suppressed. Some audio streams are muted.

public static final int INTERRUPTION_FILTER_ALL = 1

Interruption filter constant - Normal interruption filter - no notifications are suppressed.

public static final int INTERRUPTION_FILTER_NONE = 3

Interruption filter constant - No interruptions filter - all notifications are suppressed and all audio streams (except those used for phone calls) and vibrations are muted.

public static final int INTERRUPTION_FILTER_PRIORITY = 2

Interruption filter constant - Priority interruption filter - all notifications are suppressed except those that match the priority criteria. Some audio streams are muted. See priorityCallSenders, priorityCategories, priorityMessageSenders to define or query this criteria. Users can additionally specify packages that can bypass this interruption filter.

public static final int INTERRUPTION_FILTER_UNKNOWN = 0

Interruption filter constant - returned when the value is unavailable for any reason.

public boolean areNotificationsEnabled()

Returns whether notifications from the calling package are not blocked.

public boolean canUseFullScreenIntent()

Returns whether the calling app can send fullscreen intents.

Fullscreen intents were introduced in Android HONEYCOMB, where apps could always attach a full screen intent to their notification via setFullScreenIntent}.

Android Q introduced the USE_FULL_SCREEN_INTENT permission, where SystemUI will only show the full screen intent attached to a notification if the permission is declared in the manifest.

Starting from Android UPSIDE_DOWN_CAKE, apps may not have permission to use USE_FULL_SCREEN_INTENT. If the FSI permission is denied, SystemUI will show the notification as an expanded heads up notification on lockscreen.

To request access, add the USE_FULL_SCREEN_INTENT permission to your manifest, and use ACTION_MANAGE_APP_USE_FULL_SCREEN_INTENT to send the user to the settings page where they can grant your app the FSI permission.

public void cancel(int id)

Cancel a previously shown notification.

public void cancel(@Nullable String tag, int id)

Cancel a previously shown notification.

public void cancelAll()

Cancel all previously shown notifications.

public void createNotificationChannel(@NonNull NotificationChannel channel)

Creates a notification channel that notifications can be posted to. This can also be used to restore a deleted channel and to update an existing channel's name, description, group, and/or importance.

The importance of an existing channel will only be changed if the new importance is lower than the current value and the user has not altered any settings on this channel.

The group of an existing channel will only be changed if the channel does not already belong to a group. All other fields are ignored for channels that already exist. It doesn't do anything on older SDKs which don't support Notification Channels.

public void createNotificationChannel(@NonNull NotificationChannelCompat channel)

Creates a notification channel that notifications can be posted to. This can also be used to restore a deleted channel and to update an existing channel's name, description, group, and/or importance.

The importance of an existing channel will only be changed if the new importance is lower than the current value and the user has not altered any settings on this channel.

The group of an existing channel will only be changed if the channel does not already belong to a group. All other fields are ignored for channels that already exist. It doesn't do anything on older SDKs which don't support Notification Channels.

public void createNotificationChannelGroup(@NonNull NotificationChannelGroup group)

Creates a group container for NotificationChannel objects. This can be used to rename an existing group. It doesn't do anything on older SDKs which don't support Notification Channels.

public void createNotificationChannelGroup(
    @NonNull NotificationChannelGroupCompat group
)

Creates a group container for NotificationChannel objects. This can be used to rename an existing group. It doesn't do anything on older SDKs which don't support Notification Channels.

public void createNotificationChannelGroups(
    @NonNull List<NotificationChannelGroup> groups
)

Creates multiple notification channel groups. See createNotificationChannelGroup. It doesn't do anything on older SDKs which don't support Notification Channels.

public void createNotificationChannelGroupsCompat(
    @NonNull List<NotificationChannelGroupCompat> groups
)

Creates multiple notification channel groups. See createNotificationChannelGroup. It doesn't do anything on older SDKs which don't support Notification Channels.

public void createNotificationChannels(@NonNull List<NotificationChannel> channels)

Creates multiple notification channels that different notifications can be posted to. See createNotificationChannel. It doesn't do anything on older SDKs which don't support Notification Channels.

public void createNotificationChannelsCompat(
    @NonNull List<NotificationChannelCompat> channels
)

Creates multiple notification channels that different notifications can be posted to. See createNotificationChannel. It doesn't do anything on older SDKs which don't support Notification Channels.

public void deleteNotificationChannel(@NonNull String channelId)

Deletes the given notification channel.

If you create a new channel with this same id, the deleted channel will be un-deleted with all of the same settings it had before it was deleted. It doesn't do anything on older SDKs which don't support Notification Channels.

public void deleteNotificationChannelGroup(@NonNull String groupId)

Deletes the given notification channel group, and all notification channels that belong to it. It doesn't do anything on older SDKs which don't support Notification Channels.

public void deleteUnlistedNotificationChannels(
    @NonNull Collection<String> channelIds
)

Deletes notification channels for which ids are NOT given. This will NOT delete channels which are conversation children of the given channels. It doesn't do anything on older SDKs which don't support Notification Channels.

public static @NonNull NotificationManagerCompat from(@NonNull Context context)

Get a NotificationManagerCompat instance for a provided context.

public @NonNull List<StatusBarNotification> getActiveNotifications()

Recover a list of active notifications: ones that have been posted by the calling app that have not yet been dismissed by the user or canceled by the app.

StatusBarNotification object, including the original and supplied to (via and ) as well as a copy of the original object (via ).

From Q, will also return notifications you've posted as an app's notification delegate via notifyAsPackage.

Returns an empty list on LOLLIPOP_MR1 and earlier.

public int getCurrentInterruptionFilter()

Gets the current notification interruption filter.

The interruption filter defines which notifications are allowed to interrupt the user (e.g. via sound &vibration) and is applied globally.

public static @NonNull Set<String> getEnabledListenerPackages(@NonNull Context context)

Get the set of packages that have an enabled notification listener component within them.

public int getImportance()

Returns the user specified importance for notifications from the calling package.

public @Nullable NotificationChannel getNotificationChannel(@NonNull String channelId)

Returns the notification channel settings for a given channel id. Returns null on older SDKs which don't support Notification Channels.

public @Nullable NotificationChannel getNotificationChannel(
    @NonNull String channelId,
    @NonNull String conversationId
)

Returns the notification channel settings for a given channel and conversation id. Returns the channel for the channelId on older SDKs which don't support Conversations. Returns null on older SDKs which don't support Notification Channels.

public @Nullable NotificationChannelCompat getNotificationChannelCompat(@NonNull String channelId)

Returns the notification channel settings for a given channel id. Returns null on older SDKs which don't support Notification Channels.

public @Nullable NotificationChannelCompat getNotificationChannelCompat(
    @NonNull String channelId,
    @NonNull String conversationId
)

Returns the notification channel settings for a given channel and conversation id. Returns the channel for the channelId on older SDKs which don't support Conversations. Returns null on older SDKs which don't support Notification Channels.

public @Nullable NotificationChannelGroup getNotificationChannelGroup(@NonNull String channelGroupId)

Returns the notification channel group settings for a given channel group id. Returns null on older SDKs which don't support Notification Channels.

public @Nullable NotificationChannelGroupCompat getNotificationChannelGroupCompat(@NonNull String channelGroupId)

Returns the notification channel group settings for a given channel group id. Returns null on older SDKs which don't support Notification Channels.

public @NonNull List<NotificationChannelGroup> getNotificationChannelGroups()

Returns all notification channel groups belonging to the calling app or an empty list on older SDKs which don't support Notification Channels.

public @NonNull List<NotificationChannelGroupCompat> getNotificationChannelGroupsCompat()

Returns all notification channel groups belonging to the calling app or an empty list on older SDKs which don't support Notification Channels.

public @NonNull List<NotificationChannel> getNotificationChannels()

Returns all notification channels belonging to the calling app or an empty list on older SDKs which don't support Notification Channels.

public @NonNull List<NotificationChannelCompat> getNotificationChannelsCompat()

Returns all notification channels belonging to the calling app or an empty list on older SDKs which don't support Notification Channels.

@RequiresPermission(value = Manifest.permission.POST_NOTIFICATIONS)
public void notify(
    @NonNull List<NotificationManagerCompat.NotificationWithIdAndTag> notificationWithIdAndTags
)

Post a number of notifications, to be shown in the status bar, stream, etc. Each notification will attempt to be posted in the order provided in the notificationWithIds list. Each notification must have a provided id and may have a provided tag. This is the preferred method for posting groups of notifications, to improve sound and animation behavior.

@RequiresPermission(value = Manifest.permission.POST_NOTIFICATIONS)
public void notify(int id, @NonNull Notification notification)

Post a notification to be shown in the status bar, stream, etc.

@RequiresPermission(value = Manifest.permission.POST_NOTIFICATIONS)
public void notify(@Nullable String tag, int id, @NonNull Notification notification)

Post a notification to be shown in the status bar, stream, etc.