harmony 鸿蒙GlobalObserver

2025-06-12
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GlobalObserver

The GlobalObserver module defines an exception observer. It can be used as an input parameter in ErrorManager.on(‘globalErrorOccurred’) and ErrorManager.on(‘globalUnhandledRejectionDetected’) to listen for event processing of the current application’s main thread.

NOTE

The initial APIs of this module are supported since API version 16. Newly added APIs will be marked with a superscript to indicate their earliest API version.

Modules to Import

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

Properties

Atomic service API: This API can be used in atomic services since API version 16.

System capability: SystemCapability.Ability.AbilityRuntime.Core

Parameters

Name	Type	Mandatory	Description
reason	GlobalError	Yes	Object related to the exception event name, message, error stack information, exception thread name, and exception thread type.

Example

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

function errorFunc(observer: errorManager.GlobalError) {
    console.log("result name :" + observer.name);
    console.log("result message :" + observer.message);
    console.log("result stack :" + observer.stack);
    console.log("result instanceName :" + observer.instanceName);
    console.log("result instaceType :" + observer.instanceType);
}

errorManager.off('globalErrorOccurred', errorFunc)