harmony 鸿蒙AppStateData

2022-12-22
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AppStateData

The AppStateData module defines the application state data, which can be obtained through getForegroundApplications.

NOTE

The initial APIs of this module are supported since API version 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.

Modules to Import

import appManager from '@ohos.app.ability.appManager';

Attributes

System capability: SystemCapability.Ability.AbilityRuntime.Core

System API: This module is marked as @systemapi and not visible to third-party applications.

Name	Type	Mandatory	Description
bundleName⁸⁺	string	No	Bundle name.
uid⁸⁺	number	No	UID of the application.
state⁸⁺	number	No	Application state. 0: The application is being initialized. 1: The application has been initialized and is ready. 2: The application is running in the foreground. 3: The application is having the focus. (This state is reserved.) 4: The application is running in the background. 5: The application has exited.

Example

import appManager from '@ohos.app.ability.appManager';

function getForegroundAppInfos() {
    appManager.getForegroundApplications((error, data) => {
        if (error) {
            console.log(`getForegroundApplications failed, error.code: ${JSON.stringify(error.code)}, error.message: ${JSON.stringify(error.message)}`);
            return;
        }
        for (let i = 0; i < data.length; i++) {
            let appStateData = data[i];
            console.log(`appStateData.bundleName: ${appStateData.bundleName}`);
            console.log(`appStateData.uid: ${appStateData.uid}`);
            console.log(`appStateData.state: ${appStateData.state}`);
        }
    });
}