WakeLockSentinel.onrelease

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句法
范例
规范
浏览器兼容性
相关话题

草案
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安全上下文
此特征只可用于安全上下文 (HTTPS)，在某些或所有支持浏览器 .

onrelease 特性为 WakeLockSentinel is fired when the sentinel object's handle has been released.

A WakeLockSentinel can be released manually via the release() method, or automatically via the platform wake lock. This can happen if the document becomes inactive or looses visibility, if the device is low on power or the user turns on a power save mode.

This interface inherits from the 事件 接口。

  <div id="interfaceDiagram" style="display: inline-block; position: relative; width: 100%; padding-bottom: 8.571428571428571%; vertical-align: middle; overflow: hidden;"><svg style="display: inline-block; position: absolute; top: 0; left: 0;" viewbox="-20 0 700 60" preserveAspectRatio="xMinYMin meet"><a xlink:href="../API/WakeLockSentinel" target="_top"><rect x="1" y="1" width="160" height="50" fill="#F4F7F8" stroke="#D4DDE4" stroke-width="2px" /><text  x="81" y="30" font-size="12px" font-family="Consolas,Monaco,Andale Mono,monospace" fill="#4D4E53" text-anchor="middle" alignment-baseline="middle">WakeLockSentinel</text></a></svg></div>

  a:hover text { fill: #0095DD; pointer-events: all;}

句法

wakeLockSentinel.onrelease = function(event) {...}

范例

This example updates the UI should the wake lock be released.

wakeLock.addEventListener('release', () => {
  // if wake lock is released alter the UI accordingly
  statusElement.textContent = 'Wake Lock has been released';
});

规范

规范	状态	注释
Screen Wake Lock API The definition of 'onrelease' in that specification.	未知	初始定义。

浏览器兼容性

The compatibility table in 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. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`onrelease`	Chrome 84	Edge 84	Firefox No	IE No	Opera Yes	Safari No	WebView Android 84	Chrome Android 84	Firefox Android No	Opera Android Yes	Safari iOS No	Samsung Internet Android Yes

图例

完整支持
不支持
实验。期望将来行为有所改变。

元数据

最后修改： Aug 27, 2020