harmony 鸿蒙AbilityFirstFrameStateData (System API)

2025-06-12
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AbilityFirstFrameStateData (System API)

AbilityFirstFrameStateData defines the data reported by the callback when the first frame of an ability is rendered. Specifically, the data is returned in the onAbilityFirstFrameDrawn callback of AbilityFirstFrameStateObserver after the first frame rendering completion event is listened for by calling on.

NOTE

The initial APIs of this module are supported since API version 12. Newly added APIs will be marked with a superscript to indicate their earliest API version. The APIs provided by this module are system APIs.

Modules to Import

import { appManager } from '@kit.AbilityKit';

Attributes

System capability: SystemCapability.Ability.AbilityRuntime.Core

System API: This is a system API.

Name	Type	Read Only	Mandatory	Description
bundleName	string	Yes	No	Bundle name.
moduleName	string	Yes	No	Module name.
abilityName	string	Yes	No	Ability name.
appIndex	number	Yes	No	Index of the DLP sandbox.
isColdStart	boolean	Yes	No	Enabled status of cold start. The value true means that cold start is enabled, and false means the opposite.