harmony 鸿蒙NotificationContent (System API)

2025-06-12
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NotificationContent (System API)

The NotificationContent module provides APIs for defining the notification content.

NOTE

The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.

This topic describes only system APIs provided by the module. For details about its public APIs, see NotificationContent.

NotificationContent

System capability: SystemCapability.Notification.Notification

Name	Type	Read Only	Optional	Description
liveView¹¹⁺	NotificationLiveViewContent	No	Yes	Common live view. System API: This is a system API.

NotificationLiveViewContent¹¹⁺

Describes the common live view.

System capability: SystemCapability.Notification.Notification

System API: This is a system API.

Name	Type	Read Only	Optional	Description
status	LiveViewStatus	No	No	Notification status.
version	number	No	Yes	If the version number stored in the database is not 0xffffffff, the version number needs to be verified when the live view is updated or ended to ensure that the current version number is greater than the version number stored in the database. The default value is 0xffffffff.
extraInfo	Record	No	Yes	Extra information of the live view.
pictureInfo	Record>	No	Yes	Extra image information of the live view.
isLocalUpdateOnly¹²⁺	boolean	No	Yes	Whether the live view is updated only locally. - true: Yes. - false (default): No.

NotificationCapsule¹¹⁺

Describe the notification capsule.

System capability: SystemCapability.Notification.Notification

System API: This is a system API.

Name	Type	Read Only	Optional	Description
content¹²⁺	string	No	Yes	Extended text of the capsule.

LiveViewStatus¹¹⁺

Enumerates the statuses of the common live view.

System capability: SystemCapability.Security.AccessToken

System API: This is a system API.

Name	Value	Description
LIVE_VIEW_CREATE	0	The live view is created.
LIVE_VIEW_INCREMENTAL_UPDATE	1	The live view is updated in incremental mode.
LIVE_VIEW_END	2	The live view is ended.
LIVE_VIEW_FULL_UPDATE	3	The live view is updated in full mode.