harmony 鸿蒙AbilityFirstFrameStateObserver (System API)

2025-06-12
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AbilityFirstFrameStateObserver (System API)

AbilityFirstFrameStateObserver defines the observer used to listen for the complete of the first frame rendering of a given ability. It is used as an input parameter of on to listen for the completion event.

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';

Properties

System API: This is a system API.

System capability: SystemCapability.Ability.AbilityRuntime.Core

Name	Type	Read Only	Mandatory	Description
onAbilityFirstFrameDrawn	AsyncCallback<void>	Yes	No	Callback invoked when the first frame of an ability is rendered. The parameter type passed in is AbilityFirstFrameStateData.