这是一个实验中的功能
此功能某些浏览器尚在开发中，请参考浏览器兼容性表格以得到在不同浏览器中适合使用的前缀。由于该功能对应的标准文档可能被重新修订，所以在未来版本的浏览器中该功能的语法和行为可能随之改变。
Secure context
This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
WakeLock 接口允许一个文件获取屏幕唤醒锁定。
方法
WakeLock.request()- 返回一个决议为
WakeLockSentinel的Promise或当唤醒锁定不可访问的时候抛出异常。
示例
以下例子获取一个唤醒锁定并在 10 分钟后释放它：
function tryKeepScreenAlive(minutes) {
navigator.wakeLock.request("screen").then(lock => {
setTimeout(() => lock.release(), minutes * 60 * 1000);
});
}
tryKeepScreenAlive(10);
规范
| 规范 | 状态 | Comment |
|---|---|---|
| Screen Wake Lock API | Editor's Draft | Initial definition |
浏览器兼容性
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
WakeLock | Chrome Full support 84 | Edge Full support 84 | Firefox No support No | IE No support No | Opera Full support Yes | Safari No support No | WebView Android Full support 84 | Chrome Android Full support 84 | Firefox Android No support No | Opera Android Full support Yes | Safari iOS No support No | Samsung Internet Android No support No |
request | Chrome Full support 84 | Edge Full support 84 | Firefox No support No | IE No support No | Opera Full support Yes | Safari No support No | WebView Android Full support 84 | Chrome Android Full support 84 | Firefox Android No support No | Opera Android Full support Yes | Safari iOS No support No | Samsung Internet Android No support No |
Legend
- Full support
- Full support
- No support
- No support
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.