harmony 鸿蒙@ohos.application.errorManager (ErrorManager)

2022-12-22
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@ohos.application.errorManager (ErrorManager)

The ErrorManager module provides APIs for registering and deregistering error observers.

NOTE

The APIs of this module are supported since API version 9 and are deprecated in versions later than API version 9. You are advised to use @ohos.app.ability.errorManager instead. Newly added APIs will be marked with a superscript to indicate their earliest API version.

Modules to Import

import errorManager from '@ohos.application.errorManager';

ErrorManager.registerErrorObserver

registerErrorObserver(observer: ErrorObserver): number;

Registers an error observer.

System capability: SystemCapability.Ability.AbilityRuntime.Core

Parameters

Name	Type	Mandatory	Description
observer	ErrorObserver	Yes	Numeric code of the observer.

Example

var observer = {
    onUnhandledException(errorMsg) {
        console.log('onUnhandledException, errorMsg: ', errorMsg)
    }
}
errorManager.registerErrorObserver(observer)

ErrorManager.unregisterErrorObserver

unregisterErrorObserver(observerId: number, callback: AsyncCallback<void>): void;

Deregisters an error observer. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.Ability.AbilityRuntime.Core

Parameters

Name	Type	Mandatory	Description
observerId	number	Yes	Numeric code of the observer.
callback	AsyncCallback<void>	Yes	Callback used to return the result.

Example

var observerId = 100;

function unregisterErrorObserverCallback(err) {
    if (err) {
        console.log('------------ unregisterErrorObserverCallback ------------', err);
    }
}
errorManager.unregisterErrorObserver(observerId, unregisterErrorObserverCallback);

ErrorManager.unregisterErrorObserver

unregisterErrorObserver(observerId: number): Promise<void>;

Deregisters an error observer. This API uses a promise to return the result.

System capability: SystemCapability.Ability.AbilityRuntime.Core

Parameters

Name	Type	Mandatory	Description
observerId	number	Yes	Numeric code of the observer.

Return value

Type	Description
Promise<void>	Promise used to return the result.

Example

var observerId = 100;
errorManager.unregisterErrorObserver(observerId)
.then((data) => {
    console.log('----------- unregisterErrorObserver success ----------', data);
})
.catch((err) => {
    console.log('----------- unregisterErrorObserver fail ----------', err);
})