Notification Class

Reference

Definition

Namespace:: Android.App

Assembly:: Mono.Android.dll

Important

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A class that represents how a persistent notification is to be presented to the user using the android.app.NotificationManager.

[Android.Runtime.Register("android/app/Notification", DoNotGenerateAcw=true)]
public class Notification : Java.Lang.Object, Android.OS.IParcelable, IDisposable, Java.Interop.IJavaPeerable

[<Android.Runtime.Register("android/app/Notification", DoNotGenerateAcw=true)>]
type Notification = class
    inherit Object
    interface IParcelable
    interface IJavaObject
    interface IDisposable
    interface IJavaPeerable

Inheritance: Object

Object
Notification

Attributes: RegisterAttribute

Implements: IParcelable IJavaObject IJavaPeerable IDisposable

Remarks

A class that represents how a persistent notification is to be presented to the user using the android.app.NotificationManager.

The Notification.Builder Notification.Builder has been added to make it easier to construct Notifications.

<div class="special reference"> <h3>Developer Guides</h3>

For a guide to creating notifications, read the Status Bar Notifications developer guide.

</div>

Java documentation for android.app.Notification.

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Constructors

Notification()	Constructs a Notification object with default values.
Notification(Int32, ICharSequence, Int64)	Obsolete. Constructs a Notification object with the information needed to have a status bar icon without the standard expanded view.
Notification(Int32, ICharSequence)	Constructs a `Notification` object with the information needed to have a status bar icon without the standard expanded view.
Notification(Int32, String, Int64)	Constructs a Notification object with the information needed to have a status bar icon without the standard expanded view.
Notification(Int32, String)	Constructs a `Notification` object with the information needed to have a status bar icon without the standard expanded view.
Notification(IntPtr, JniHandleOwnership)	A constructor used when creating managed representations of JNI objects; called by the runtime.
Notification(Parcel)	Unflatten the notification from a parcel.

Fields

CategoryAlarm	Notification category: alarm or timer.
CategoryCall	Notification category: incoming call (voice or video) or similar synchronous communication request.
CategoryEmail	Notification category: asynchronous bulk message (email).
CategoryError	Notification category: error in background operation or authentication status.
CategoryEvent	Notification category: calendar event.
CategoryLocationSharing	Notification category: temporarily sharing location.
CategoryMessage	Notification category: incoming direct message (SMS, instant message, etc.
CategoryMissedCall	Notification category: missed call.
CategoryNavigation	Notification category: map turn-by-turn navigation.
CategoryProgress	Notification category: progress of a long-running background operation.
CategoryPromo	Notification category: promotion or advertisement.
CategoryRecommendation	Notification category: a specific, timely recommendation for a single thing.
CategoryReminder	Notification category: user-scheduled reminder.
CategoryService	Notification category: indication of running background service.
CategorySocial	Notification category: social network or sharing update.
CategoryStatus	Notification category: ongoing information about device or contextual status.
CategoryStopwatch	Notification category: running stopwatch.
CategorySystem	Notification category: system or device status update.
CategoryTransport	Notification category: media transport control for playback.
CategoryWorkout	Notification category: tracking a user's workout.
ColorDefault	Special value of `#color` telling the system not to decorate this notification with any special color but instead use default colors when presenting this notification.
ExtraAnswerColor	`#extras` key: the color used as a hint for the Answer action button of a `android.app.Notification.CallStyle` notification.
ExtraAnswerIntent	`#extras` key: the intent to be sent when the users answers a `android.app.Notification.CallStyle` notification.
ExtraAudioContentsUri	`#extras` key: the audio contents of this notification.
ExtraBackgroundImageUri	`#extras` key: flat `String` representation of a `android.content.ContentUris content URI` pointing to an image that can be displayed in the background when the notification is selected.
ExtraBigText	`#extras` key: this is the longer text shown in the big form of a `BigTextStyle` notification, as supplied to `BigTextStyle#bigText(CharSequence)`.
ExtraCallIsVideo	`#extras` key: whether the `android.app.Notification.CallStyle` notification is for a call that will activate video when answered.
ExtraCallPerson	`#extras` key: the person to be displayed as calling for the `android.app.Notification.CallStyle` notification.
ExtraCallType	`#extras` key: the type of call represented by the `android.app.Notification.CallStyle` notification.
ExtraChannelGroupId	Optional extra for `#INTENT_CATEGORY_NOTIFICATION_PREFERENCES`.
ExtraChannelId	Optional extra for `#INTENT_CATEGORY_NOTIFICATION_PREFERENCES`.
ExtraChronometerCountDown	`#extras` key: whether the chronometer set on the notification should count down instead of counting up.
ExtraColorized	`#extras` key: whether the notification should be colorized as supplied to `Builder#setColorized(boolean)`.
ExtraCompactActions	`#extras` key: the indices of actions to be shown in the compact view, as supplied to (e.
ExtraConversationTitle	`#extras` key: a `CharSequence` to be displayed as the title to a conversation represented by a `android.app.Notification.MessagingStyle`
ExtraDeclineColor	`#extras` key: the color used as a hint for the Decline or Hang Up action button of a `android.app.Notification.CallStyle` notification.
ExtraDeclineIntent	`#extras` key: the intent to be sent when the users declines a `android.app.Notification.CallStyle` notification.
ExtraHangUpIntent	`#extras` key: the intent to be sent when the users hangs up a `android.app.Notification.CallStyle` notification.
ExtraHistoricMessages	`#extras` key: an array of `android.app.Notification.MessagingStyle#addHistoricMessage historicandroid.app.Notification.MessagingStyle.Message` bundles provided by a `android.app.Notification.MessagingStyle` notification.
ExtraInfoText	`#extras` key: this is a small piece of additional text as supplied to `Builder#setContentInfo(CharSequence)`.
ExtraIsGroupConversation	`#extras` key: whether the `android.app.Notification.MessagingStyle` notification represents a group conversation.
ExtraLargeIcon	`#extras` key: this is a bitmap to be used instead of the small icon when showing the notification payload, as supplied to `Builder#setLargeIcon(android.graphics.Bitmap)`.
ExtraLargeIconBig	`#extras` key: this is a bitmap to be used instead of the one from `Builder#setLargeIcon(android.graphics.Bitmap)` when the notification is shown in its expanded form, as supplied to `BigPictureStyle#bigLargeIcon(android.graphics.Bitmap)`.
ExtraMediaSession	`#extras` key: A `android.media.session.MediaSession.Token` associated with a `android.app.Notification.MediaStyle` notification.
ExtraMessages	`#extras` key: an array of `android.app.Notification.MessagingStyle.Message` bundles provided by a `android.app.Notification.MessagingStyle` notification.
ExtraMessagingPerson	`#extras` key: the person to be displayed for all messages sent by the user including direct replies `android.app.Notification.MessagingStyle` notification.
ExtraNotificationId	Optional extra for `#INTENT_CATEGORY_NOTIFICATION_PREFERENCES`.
ExtraNotificationTag	Optional extra for `#INTENT_CATEGORY_NOTIFICATION_PREFERENCES`.
ExtraPeople	`#extras` key: A String array containing the people that this notification relates to, each of which was supplied to `Builder#addPerson(String)`.
ExtraPeopleList	`#extras` key: An arrayList of `Person` objects containing the people that this notification relates to.
ExtraPicture	`#extras` key: this is a bitmap to be shown in `BigPictureStyle` expanded notifications, supplied to `BigPictureStyle#bigPicture(android.graphics.Bitmap)`.
ExtraPictureContentDescription	`#extras` key: this is a content description of the big picture supplied from `BigPictureStyle#bigPicture(Bitmap)`, supplied to `BigPictureStyle#setContentDescription(CharSequence)`.
ExtraPictureIcon	`#extras` key: this is an `Icon` of an image to be shown in `BigPictureStyle` expanded notifications, supplied to `BigPictureStyle#bigPicture(Icon)`.
ExtraProgress	`#extras` key: this is the progress value supplied to `Builder#setProgress(int, int, boolean)`.
ExtraProgressIndeterminate	`#extras` key: whether the progress bar is indeterminate, supplied to `Builder#setProgress(int, int, boolean)`.
ExtraProgressMax	`#extras` key: this is the maximum value supplied to `Builder#setProgress(int, int, boolean)`.
ExtraRemoteInputDraft	If the notification contained an unsent draft for a RemoteInput when the user clicked on it, we're adding the draft as a String extra to the `#contentIntent` using this key.
ExtraRemoteInputHistory	`#extras` key: this is the remote input history, as supplied to `Builder#setRemoteInputHistory(CharSequence[])`.
ExtraSelfDisplayName	`#extras` key: the username to be displayed for all messages sent by the user including direct replies `android.app.Notification.MessagingStyle` notification.
ExtraShowBigPictureWhenCollapsed	`#extras` key: this is a boolean to indicate that the `BigPictureStyle#bigPicture(Bitmap) big picture` is to be shown in the collapsed state of a `BigPictureStyle` notification.
ExtraShowChronometer	`#extras` key: whether `#when` should be shown as a count-up timer (specifically a `android.widget.Chronometer`) instead of a timestamp, as supplied to `Builder#setUsesChronometer(boolean)`.
ExtraShowWhen	`#extras` key: whether `#when` should be shown, as supplied to `Builder#setShowWhen(boolean)`.
ExtraSmallIcon	`#extras` key: this is the resource ID of the notification's main small icon, as supplied to `Builder#setSmallIcon(int)`.
ExtraSubText	`#extras` key: this is a third line of text, as supplied to `Builder#setSubText(CharSequence)`.
ExtraSummaryText	`#extras` key: this is a line of summary information intended to be shown alongside expanded notifications, as supplied to (e.
ExtraTemplate	`#extras` key: A string representing the name of the specific `android.app.Notification.Style` used to create this notification.
ExtraText	`#extras` key: this is the main text payload, as supplied to `Builder#setContentText(CharSequence)`.
ExtraTextLines	`#extras` key: An array of CharSequences to show in `InboxStyle` expanded notifications, each of which was supplied to `InboxStyle#addLine(CharSequence)`.
ExtraTitle	`#extras` key: this is the title of the notification, as supplied to `Builder#setContentTitle(CharSequence)`.
ExtraTitleBig	`#extras` key: this is the title of the notification when shown in expanded form, e.
ExtraVerificationIcon	`#extras` key: the icon to be displayed as a verification status of the caller on a `android.app.Notification.CallStyle` notification.
ExtraVerificationText	`#extras` key: the text to be displayed as a verification status of the caller on a `android.app.Notification.CallStyle` notification.
ForegroundServiceDefault	Obsolete. If the Notification associated with starting a foreground service has been built using setForegroundServiceBehavior() with this behavior, display of the notification will usually be suppressed for a short time to avoid visual disturbances to the user.
ForegroundServiceDeferred	Obsolete. If the Notification associated with starting a foreground service has been built using setForegroundServiceBehavior() with this behavior, display of the notification will usually be suppressed for a short time to avoid visual disturbances to the user.
ForegroundServiceImmediate	Obsolete. If the Notification associated with starting a foreground service has been built using setForegroundServiceBehavior() with this behavior, display of the notification will be immediate even if the default behavior would be to defer visibility for a short time.
IntentCategoryNotificationPreferences	An activity that provides a user interface for adjusting notification preferences for its containing application.
PriorityDefault	Default notification `#priority`.
PriorityHigh	Higher `#priority`, for more important notifications or alerts.
PriorityLow	Lower `#priority`, for items that are less important.
PriorityMax	Highest `#priority`, for your application's most important items that require the user's prompt attention or input.
PriorityMin	Lowest `#priority`; these items might not be shown to the user except under special circumstances, such as detailed notification logs.

Properties

Actions	Array of all `Action` structures attached to this notification by `Builder#addAction(int, CharSequence, PendingIntent)`.
AllowSystemGeneratedContextualActions	Returns whether the platform is allowed (by the app developer) to generate contextual actions for this notification.
AudioAttributes	The `AudioAttributes audio attributes` to use when playing the sound.
AudioAttributesDefault	The default value of `#audioAttributes`.
AudioStreamType	Obsolete. The audio stream type to use when playing the sound.
BadgeIconType	Returns what icon should be shown for this notification if it is being displayed in a Launcher that supports badging.
BigContentView	A large-format version of `#contentView`, giving the Notification an opportunity to show more detail.
Category	One of the predefined notification categories (see the `CATEGORY_*` constants) that best describes this Notification.
ChannelId	Returns the id of the channel this notification posts to.
Class	Returns the runtime class of this `Object`. (Inherited from Object)
Color	Accent color (an ARGB integer like the constants in `android.graphics.Color`) to be applied by the standard Style templates when presenting this notification.
ContentIntent	The intent to execute when the expanded status entry is clicked.
ContentView	The view that will represent this notification in the notification list (which is pulled down from the status bar).
ContextualActions	Returns the actions that are contextual (that is, suggested because of the content of the notification) out of the actions in this notification.
Creator	Parcelable.
Defaults	Specifies which values should be taken from the defaults.
DeleteIntent	The intent to execute when the notification is explicitly dismissed by the user, either with the "Clear All" button or by swiping it away individually.
Extras	Additional semantic data to be carried around with this Notification.
Flags
FullScreenIntent	An intent to launch instead of posting the notification to the status bar.
Group	Get the key used to group this notification into a cluster or stack with other notifications on devices which support such rendering.
GroupAlertBehavior	Returns which type of notifications in a group are responsible for audibly alerting the user.
Handle	The handle to the underlying Android instance. (Inherited from Object)
HasImage
HeadsUpContentView	A medium-format version of `#contentView`, providing the Notification an opportunity to add action buttons to contentView.
Icon	The resource id of a drawable to use as the icon in the status bar.
IconLevel	If the icon in the status bar is to have more than one level, you can set this.
JniIdentityHashCode	(Inherited from Object)
JniPeerMembers
LargeIcon	A large bitmap to be shown in the notification content area.
LedARGB	The color of the led.
LedOffMS	The number of milliseconds for the LED to be off while it's flashing.
LedOnMS	The number of milliseconds for the LED to be on while it's flashing.
LocusId	Gets the `LocusId` associated with this notification.
Number	The number of events that this notification represents.
PeerReference	(Inherited from Object)
Priority	Relative priority for this notification.
PublicVersion	Replacement version of this notification whose content will be shown in an insecure context such as atop a secure keyguard.
SettingsText
SettingsTextFormatted	Returns the settings text provided to `Builder#setSettingsText(CharSequence)`.
ShortcutId	Returns the `ShortcutInfo#getId() id` that this notification supersedes, if any.
SmallIcon	The small icon representing this notification in the status bar and content view.
SortKey	Get a sort key that orders this notification among other notifications from the same package.
Sound	The sound to play.
ThresholdClass	This API supports the Mono for Android infrastructure and is not intended to be used directly from your code.
ThresholdType	This API supports the Mono for Android infrastructure and is not intended to be used directly from your code.
TickerText	Text that summarizes this notification for accessibility services.
TickerView	Obsolete. Formerly, a view showing the `#tickerText`.
TimeoutAfter	Returns the duration from posting after which this notification should be canceled by the system, if it's not canceled already.
Vibrate	The pattern with which to vibrate.
Visibility	Sphere of visibility of this notification, which affects how and when the SystemUI reveals the notification's presence and contents in untrusted situations (namely, on the secure lockscreen).
When	A timestamp related to this notification, in milliseconds since the epoch.

Methods

Clone()	Creates and returns a copy of this `Object`.
DescribeContents()	Describe the kinds of special objects contained in this Parcelable's marshalled representation.
Dispose()	(Inherited from Object)
Dispose(Boolean)	(Inherited from Object)
Equals(Object)	Indicates whether some other object is "equal to" this one. (Inherited from Object)
FindRemoteInputActionPair(Boolean)	Finds and returns a remote input and its corresponding action.
GetBubbleMetadata()	Returns the bubble metadata that will be used to display app content in a floating window over the existing foreground activity.
GetHashCode()	Returns a hash code value for the object. (Inherited from Object)
GetLargeIcon()	The large icon shown in this notification's content view.
JavaFinalize()	Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. (Inherited from Object)
Notify()	Wakes up a single thread that is waiting on this object's monitor. (Inherited from Object)
NotifyAll()	Wakes up all threads that are waiting on this object's monitor. (Inherited from Object)
SetHandle(IntPtr, JniHandleOwnership)	Sets the Handle property. (Inherited from Object)
SetLatestEventInfo(Context, ICharSequence, ICharSequence, PendingIntent)	Obsolete. Sets the `#contentView` field to be a view with the standard "Latest Event" layout.
SetLatestEventInfo(Context, String, String, PendingIntent)	Obsolete. Sets the `#contentView` field to be a view with the standard "Latest Event" layout.
ToArray<T>()	(Inherited from Object)
ToString()	Returns a string representation of the object. (Inherited from Object)
UnregisterFromRuntime()	(Inherited from Object)
Wait()	Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>. (Inherited from Object)
Wait(Int64, Int32)	Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object)
Wait(Int64)	Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object)
WriteToParcel(Parcel, ParcelableWriteFlags)	Flatten this notification into a parcel.

Explicit Interface Implementations

IJavaPeerable.Disposed()	(Inherited from Object)
IJavaPeerable.DisposeUnlessReferenced()	(Inherited from Object)
IJavaPeerable.Finalized()	(Inherited from Object)
IJavaPeerable.JniManagedPeerState	(Inherited from Object)
IJavaPeerable.SetJniIdentityHashCode(Int32)	(Inherited from Object)
IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates)	(Inherited from Object)
IJavaPeerable.SetPeerReference(JniObjectReference)	(Inherited from Object)

Extension Methods

JavaCast<TResult>(IJavaObject)	Performs an Android runtime-checked type conversion.
JavaCast<TResult>(IJavaObject)
GetJniTypeName(IJavaPeerable)

Applies to

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