WakeLock

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

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
WakeLock
Experimental
Chrome Full support 84Edge Full support 84Firefox No support NoIE No support NoOpera Full support YesSafari No support NoWebView Android Full support 84Chrome Android Full support 84Firefox Android No support NoOpera Android Full support YesSafari iOS No support NoSamsung Internet Android No support No
request
Experimental
Chrome Full support 84Edge Full support 84Firefox No support NoIE No support NoOpera Full support YesSafari No support NoWebView Android Full support 84Chrome Android Full support 84Firefox Android No support NoOpera Android Full support YesSafari iOS No support NoSamsung 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.

相关链接