如何监听系统公共事件，如熄屏、亮屏、开机等?-灵析社区

解决措施 通过CES（Common Event Service，公共事件服务）为应用程序提供订阅、发布、退订公共事件的能力。可以通过订阅系统公共事件监听熄屏和亮屏。另外开机事件可使用公共事件 “COMMON_EVENT_BOOT_COMPLETED“来监听。 示例代码 import { commonEventManager } from '@kit.BasicServicesKit'; let subscriber:commonEventManager.CommonEventSubscriber; let subscribeInfo: commonEventManager.CommonEventSubscribeInfo = { events: ['usual.event.SCREEN_OFF'], // 订阅灭屏公共事件 priority:80 } commonEventManager.createSubscriber(subscribeInfo, (err, data) => { if (err) { console.error(`Failed to create subscriber. Code is ${err.code}, message is ${err.message}`); return; } console.info('Succeeded in creating subscriber1.'); subscriber = data; // 订阅公共事件回调 commonEventManager.subscribe(subscriber, (err, data) => { if (err) { console.error(`Failed to subscribe common event. Code is ${err.code}, message is ${err.message}`); return; } else { console.info(`Succeeded in subscribe common event Succeeded1 `); } }) }) 参考链接 [系统公共事件定义](https://link.segmentfault.com/?enc=qF5lygFn1S%2Bo0stzuSTb%2FA%3D%3D.7KEmlXhQwP0pucZ0jQrq9kxCyYHu8G3bmznSH%2B2gqC6xNKhohPaUwzZ%2F5ZvFGeLdnP4tIL6MBWwU4rTF%2FHXPf828LXKQPQ3ZvS%2Bh4qeL5KMEv8Wn8%2FN1MptmNf5U2ZawyoEq%2BwrYzXVDgHhlHCrkdt4sQQQkHhm0w9DQ79rmtbI%3D)