core/androidx.core.app/[main]NotificationManagerCompat

NotificationManagerCompat

class NotificationManagerCompat(source)

Compatibility library for NotificationManager with fallbacks for older platforms.

To use this class, call the static function from to get a NotificationManagerCompat object, and then call one of its methods to post or cancel notifications.

Types

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open class NotificationWithIdAndTag
Helper class which encapsulates a Notification, its id, and optionally a tag, for use when batch-posting a number of notifications.

Properties

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val ACTION_BIND_SIDE_CHANNEL: String = "android.support.BIND_NOTIFICATION_SIDE_CHANNEL"
Intent action to register for on a service to receive side channel notifications.
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val EXTRA_USE_SIDE_CHANNEL: String = "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.
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val IMPORTANCE_DEFAULT: Int = 3
Default notification importance: shows everywhere, allowed to makes noise, but does not visually intrude.
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val IMPORTANCE_HIGH: Int = 4
Higher notification importance: shows everywhere, allowed to makes noise and peek.
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val IMPORTANCE_LOW: Int = 2
Low notification importance: shows everywhere, but is not intrusive.
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val IMPORTANCE_MAX: Int = 5
Highest notification importance: shows everywhere, allowed to makes noise, peek, and use full screen intents.
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val IMPORTANCE_MIN: Int = 1
Min notification importance: only shows in the shade, below the fold.
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val IMPORTANCE_NONE: Int = 0
A notification with no importance: shows nowhere, is blocked.
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val IMPORTANCE_UNSPECIFIED: Int = -1000
Value signifying that the user has not expressed an importance.
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val INTERRUPTION_FILTER_ALARMS: Int = 4
Interruption filter constant - Alarms only interruption filter - all notifications except those of category CATEGORY_ALARM are suppressed.
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val INTERRUPTION_FILTER_ALL: Int = 1
Interruption filter constant - Normal interruption filter - no notifications are suppressed.
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val INTERRUPTION_FILTER_NONE: Int = 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.
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val INTERRUPTION_FILTER_PRIORITY: Int = 2
Interruption filter constant - Priority interruption filter - all notifications are suppressed except those that match the priority criteria.
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val INTERRUPTION_FILTER_UNKNOWN: Int = 0
Interruption filter constant - returned when the value is unavailable for any reason.

Functions

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open fun areNotificationsEnabled(): Boolean
Returns whether notifications from the calling package are not blocked.
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open fun cancel(id: Int)
open fun cancel(@Nullable tag: String, id: Int)
Cancel a previously shown notification.
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open fun cancelAll()
Cancel all previously shown notifications.
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open fun canUseFullScreenIntent(): Boolean
Returns whether the calling app can send fullscreen intents.
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open fun createNotificationChannel(@NonNull channel: NotificationChannel)
open fun createNotificationChannel(@NonNull channel: NotificationChannelCompat)
Creates a notification channel that notifications can be posted to.
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open fun createNotificationChannelGroups(@NonNull groups: List<NotificationChannelGroup>)
Creates multiple notification channel groups.
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open fun createNotificationChannelGroupsCompat(@NonNull groups: List<NotificationChannelGroupCompat>)
Creates multiple notification channel groups.
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open fun createNotificationChannels(@NonNull channels: List<NotificationChannel>)
Creates multiple notification channels that different notifications can be posted to.
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open fun createNotificationChannelsCompat(@NonNull channels: List<NotificationChannelCompat>)
Creates multiple notification channels that different notifications can be posted to.
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open fun deleteNotificationChannel(@NonNull channelId: String)
Deletes the given notification channel.
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open fun deleteNotificationChannelGroup(@NonNull groupId: String)
Deletes the given notification channel group, and all notification channels that belong to it.
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open fun deleteUnlistedNotificationChannels(@NonNull channelIds: Collection<String>)
Deletes notification channels for which ids are NOT given.
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@NonNull
open fun from(@NonNull context: Context): NotificationManagerCompat
Get a NotificationManagerCompat instance for a provided context.
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@NonNull
open fun getActiveNotifications(): List<StatusBarNotification>
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.
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open fun getCurrentInterruptionFilter(): Int
Gets the current notification interruption filter.
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@NonNull
open fun getEnabledListenerPackages(@NonNull context: Context): Set<String>
Get the set of packages that have an enabled notification listener component within them.
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open fun getImportance(): Int
Returns the user specified importance for notifications from the calling package.
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@Nullable
open fun getNotificationChannel(@NonNull channelId: String): NotificationChannel
Returns the notification channel settings for a given channel id.
@Nullable
open fun getNotificationChannel(@NonNull channelId: String, @NonNull conversationId: String): NotificationChannel
Returns the notification channel settings for a given channel and conversation id.
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@Nullable
open fun getNotificationChannelCompat(@NonNull channelId: String): NotificationChannelCompat
Returns the notification channel settings for a given channel id.
@Nullable
open fun getNotificationChannelCompat(@NonNull channelId: String, @NonNull conversationId: String): NotificationChannelCompat
Returns the notification channel settings for a given channel and conversation id.
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@Nullable
open fun getNotificationChannelGroup(@NonNull channelGroupId: String): NotificationChannelGroup
Returns the notification channel group settings for a given channel group id.
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@Nullable
open fun getNotificationChannelGroupCompat(@NonNull channelGroupId: String): NotificationChannelGroupCompat
Returns the notification channel group settings for a given channel group id.
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@NonNull
open fun getNotificationChannelGroups(): List<NotificationChannelGroup>
Returns all notification channel groups belonging to the calling app or an empty list on older SDKs which don't support Notification Channels.
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@NonNull
open fun getNotificationChannelGroupsCompat(): List<NotificationChannelGroupCompat>
Returns all notification channel groups belonging to the calling app or an empty list on older SDKs which don't support Notification Channels.
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@NonNull
open fun getNotificationChannels(): List<NotificationChannel>
Returns all notification channels belonging to the calling app or an empty list on older SDKs which don't support Notification Channels.
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@NonNull
open fun getNotificationChannelsCompat(): List<NotificationChannelCompat>
Returns all notification channels belonging to the calling app or an empty list on older SDKs which don't support Notification Channels.
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@RequiresPermission(value = Manifest.permission.POST_NOTIFICATIONS)
open fun notify(@NonNull notificationWithIdAndTags: List<NotificationManagerCompat.NotificationWithIdAndTag>)
Post a number of notifications, to be shown in the status bar, stream, etc.
@RequiresPermission(value = Manifest.permission.POST_NOTIFICATIONS)
open fun notify(id: Int, @NonNull notification: Notification)
@RequiresPermission(value = Manifest.permission.POST_NOTIFICATIONS)
open fun notify(@Nullable tag: String, id: Int, @NonNull notification: Notification)
Post a notification to be shown in the status bar, stream, etc.