{"id":11135,"date":"2024-03-17T23:35:45","date_gmt":"2024-03-17T15:35:45","guid":{"rendered":"https:\/\/www.zhangxinxu.com\/wordpress\/?p=11135"},"modified":"2024-03-18T22:12:30","modified_gmt":"2024-03-18T14:12:30","slug":"js-screen-wake-lock-api","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2024\/03\/js-screen-wake-lock-api\/","title":{"rendered":"\u4eca\u5929\u624d\u77e5\u9053\uff0cWeb\u7f51\u9875\u4e5f\u80fd\u963b\u6b62\u606f\u5c4f\u4e86"},"content":{"rendered":"<p>by <a href=\"https:\/\/www.zhangxinxu.com\/\">zhangxinxu<\/a> from <a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=11135\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=11135<\/a> \u946b\u7a7a\u95f4-\u946b\u751f\u6d3b<br \/>\n\u672c\u6587\u6b22\u8fce\u5206\u4eab\u4e0e\u805a\u5408\uff0c\u5168\u6587\u8f6c\u8f7d\u5c31\u4e0d\u5fc5\u4e86\uff0c\u5c0a\u91cd\u7248\u6743\uff0c\u5708\u5b50\u5c31\u8fd9\u4e48\u5927\uff0c\u82e5\u6025\u7528\u53ef\u4ee5\u8054\u7cfb\u6388\u6743\u3002<\/p>\n<p><script>window.wxShareImgUrl = 'https:\/\/www.zhangxinxu.com\/study\/image\/share\/202403-wake-lock.jpg';<\/script><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202403\/wakeup-cover.png\" width=\"303\" height=\"194\" alt=\"wake up\" class=\"alignright clip thumb size-medium\" \/><\/p>\n<h3>\u4e00\u3001\u963b\u6b62\u5c4f\u5e55\u9ed1\u5c4f\u4f11\u7720<\/h3>\n<p>\u4e4b\u524d\u505aPPT\u5f55\u5236\u7684\u65f6\u5019\uff0c\u4e00\u4e2a\u7535\u8111\u663e\u793a\u53f0\u8bcd\uff0c\u4e00\u4e2a\u7535\u8111\u5f55\u5236\uff0c\u7136\u540e\u663e\u793a\u53f0\u8bcd\u7684\u90a3\u4e2a\u7535\u8111\u6ca1\u51e0\u5206\u949f\u5c31\u9ed1\u5c4f\uff0c\u70e6\u4e0d\u80dc\u70e6\uff0c\u6ca1\u529e\u6cd5\uff0c\u5c31\u6253\u5f00\u4e00\u4e2a\u89c6\u9891\uff0c\u7a97\u53e3\u5c0f\u5c0f\u7684\uff0c\u4e5f\u5c31\u662f\u753b\u4e2d\u753b\u6a21\u5f0f\uff0c<\/p>\n<p>\u4eca\u5929\u624d\u53d1\u73b0\uff0c\u539f\u6765\u4e0d\u4e45\u524d\uff0cChrome\u548cSafari\u6d4f\u89c8\u5668\u90fd\u652f\u6301\u4e86\u540d\u4e3aScreen Wake Lock\u7684API\uff0c\u53ef\u4ee5\u8bbe\u7f6eWeb\u7f51\u9875\u6253\u5f00\u7684\u72b6\u6001\u4e0b\uff0c\u663e\u793a\u5668\u5c4f\u5e55\u4e0d\u4f1a\u81ea\u52a8\u4f11\u7720\u3002<\/p>\n<p>\u6839\u636e\u6211\u67e5\u627e\u7684\u8d44\u6599\u663e\u793a\uff0c\u7f8e\u56fd\u77e5\u540d\u70f9\u996a\u7f51\u7ad9 Betty Crocker \u5b9e\u73b0 Screen Wake Lock API \u540e\uff0c \u53d1\u73b0\u5176\u7528\u6237\u7684\u8d2d\u4e70\u610f\u613f\u6307\u6807\u589e\u52a0\u4e86 300%\u3002\u5982\u9700\u4e86\u89e3\u8be6\u60c5\uff0c\u8bf7<a href=\"https:\/\/web.dev\/case-studies\/betty-crocker?hl=zh-cn\" rel=\"noopener\" target=\"_blank\">\u53c2\u9605 ?? Betty Crocker \u6848\u4f8b\u7814\u7a76<\/a>\u3002<\/p>\n<p>\u8fd9\u8fd8\u771f\u662f\u610f\u5916\uff0c\u5c45\u7136\u8fd8\u53ef\u4ee5\u589e\u52a0\u4ea7\u54c1\u7684\u76f4\u63a5\u6536\u76ca\u3002<\/p>\n<p>\u4e0d\u8fc7\u5e94\u8be5\u53ea\u5bf9\u7279\u5b9a\u7f51\u7ad9\u6709\u7528\uff0c\u50cf\u662f\u505a\u996d\u7684\u7f51\u7ad9\uff0c\u7528\u6237\u505a\u83dc\u7684\u65f6\u5019\uff0c\u80af\u5b9a\u662f\u5e0c\u671b\u7f51\u9875\u4e00\u76f4\u4eae\u7740\u7684\uff0c\u56e0\u4e3a\u8981\u65f6\u4e0d\u65f6\u770b\uff0c\u6240\u4ee5\uff0c\u6536\u76ca\u624d\u8fd9\u4e48\u660e\u663e\u3002<\/p>\n<p>\u5982\u679c\u662f\u4f20\u7edf\u7684\u793e\u4ea4\u7f51\u7ad9\u5e94\u8be5\u4f5c\u7528\u5c31\u4e00\u822c\u4e86\uff0c\u4e0d\u77e5\u9053\u5c0f\u8bf4\u9605\u8bfb\u7c7b\u7f51\u7ad9\u7684\u6536\u76ca\u5982\u4f55\u2026\u2026<\/p>\n<p>\u8fd9\u4e2a\u4e4b\u540e\u518d\u8bae\uff0c\u5f53\u4e0b\u6211\u5c31\u6709\u4e00\u4e2a\u9700\u6c42\u573a\u666f\uff0c\u67d0\u9879\u76ee\u4ecb\u7ecd\u9875\u9762\uff0c\u8fdb\u5165\u6f14\u8bb2\u6a21\u5f0f\u7684\u65f6\u5019\uff0c\u4e00\u5b9a\u662f\u4e0d\u80fd\u606f\u5c4f\u7684\u3002<\/p>\n<p>\u5c31\u53ef\u4ee5\u4f7f\u7528\u8fd9\u91cc\u7684Screen Wake Lock API\u4e86\u3002<\/p>\n<h3>\u4e8c\u3001\u5c4f\u5e55\u5524\u8d77\u9501\u5b9aAPI\u7684\u8bed\u6cd5\u4e0e\u4f7f\u7528<\/h3>\n<p>\u8fd9\u79cd\u8bed\u6cd5\u7b80\u5355\u7684API\u7684\u6700\u5feb\u6377\u7684\u5b66\u4e60\u65b9\u5f0f\u5c31\u662f\u6848\u4f8b\u3002<\/p>\n<p>\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a href=\"https:\/\/www.zhangxinxu.com\/study\/202403\/js-navigator-wakelock-demo.php\" rel=\"noopener\" target=\"_blank\">\u663e\u793a\u5668\u5c4f\u5e55\u5524\u8d77\u9501\u5b9aJS\u5b9e\u73b0demo<\/a> <\/p>\n<p>\u53ea\u8981\u52fe\u9009\u5982\u4e0b\u56fe\u6240\u793a\u7684\u590d\u9009\u6846\uff0c\u90a3\u4e48\uff0c\u65e0\u8bba\u7b49\u5f85\u591a\u4e45\uff0c\u5c4f\u5e55\u90fd\u4f1a\u4e00\u76f4\u4fdd\u6301\u4eae\u8e6d\u8e6d\u7684\u72b6\u6001\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202403\/2024-03-15_231912.png\" width=\"366\" height=\"239\" alt=\"\u5c4f\u5e55\u5524\u8d77\u9501\u5b9a\u4ea4\u4e92\u793a\u610f\" class=\"alignnone size-medium\" \/><\/p>\n<h4>\u8bed\u6cd5\u4e0e\u4f7f\u7528<\/h4>\n<p>\u8981\u60f3\u5c4f\u5e55\u4fdd\u6301\u5524\u8d77\u72b6\u6001\uff0c\u5f88\u7b80\u5355\uff0c\u4e00\u884c\u4ee3\u7801\u7684\u4e8b\u60c5\uff1a<\/p>\n<pre>navigator.wakeLock.request('screen');<\/pre>\n<p>\u7ed3\u675f\u4e86\uff0c\u5c31\u8fd9\u4e48\u7b80\u5355\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202403\/it-over.png\" width=\"150\" height=\"98\" alt=\"\u7ed3\u675f\u4e86\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u7531\u4e8e\u4fdd\u6301\u5c4f\u5e55\u5524\u9192\u662f\u4e00\u4e2a\u5360\u7528\u8d44\u6e90\u5f00\u9500\u7684\u64cd\u4f5c\uff0c\u6240\u4ee5\uff0c\u6d4f\u89c8\u5668\u6709\u4e2a\u884c\u4e3a\uff0c\u90a3\u5c31\u662f\u5982\u679c\u5f53\u524d\u9875\u9762\u6700\u5c0f\u5316\uff0c\u6216\u8005\u975e\u5f53\u524d\u663e\u793a\u6807\u7b7e\u9875\uff0c\u5c4f\u5e55\u7684Wake\u9501\u5b9a\u884c\u4e3a\u4f1a\u88ab\u91ca\u653e\uff0c\u7528\u6237\u518d\u5207\u6362\u8fc7\u6765\u7684\u65f6\u5019\uff0c\u5c31\u6ca1\u6709\u9501\u5b9a\u4e86\uff0c\u56e0\u6b64\uff0c\u8fd8\u9700\u8981\u5176\u4ed6\u4ee3\u7801\u7684\u5904\u7406\u3002<\/p>\n<pre>document.addEventListener('visibilitychange', () =&amp;gt; {\r\n  if (document.visibilityState === 'visible') {\r\n    navigator.wakeLock.request(\"screen\")\r\n  }\r\n});<\/pre>\n<p>\u8fd8\u6ca1\u5b8c\uff0c\u5982\u679c\u4ec5\u4ec5\u53ea\u662fwakeLock\uff0c\u5728\u5b9e\u64cd\u8fc7\u7a0b\u4e2d\uff0c\u5f88\u5bb9\u6613\u91cd\u590d\u6267\u884c\u5524\u9192\u9501\u5b9a\uff0c\u56e0\u6b64\uff0c\u8fd8\u9700\u8981\u77e5\u9053\u4ec0\u4e48\u65f6\u5019\u91ca\u653e\u4e86\u5c4f\u5e55\u5524\u9192\u64cd\u4f5c\uff0c\u4ee5\u53ca\u5982\u4f55\u4e3b\u52a8\u91ca\u653e\u7981\u6b62\u7184\u5c4f\u7684\u529f\u80fd\u3002<\/p>\n<p>\u8fd9\u5c31\u8981\u8bf4\u4e00\u8bf4 WakeLockSentinel \u5bf9\u8c61\u4e86\uff0c\u8be5\u5bf9\u8c61\u662fnavigator.wakeLock.request(&#8216;screen&#8217;)\u8fd9\u4e2aPromise\u6267\u884c\u540e\u7684\u8fd4\u56de\u503c\u3002<\/p>\n<p>\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528then()\u83b7\u53d6\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>let wakeLock = null;\r\nnavigator.wakeLock.request('screen').then(result =&gt; {\r\n    wakeLock = result;\r\n})<\/pre>\n<p>\u4e5f\u53ef\u4ee5\u4f7f\u7528async\/await\u8bed\u6cd5\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>let wakeLock = null;\r\nasync () =&gt; {\r\n    wakeLock = await navigator.wakeLock.request('screen');\r\n}<\/pre>\n<p><strong>\u4e3b\u52a8\u91ca\u653e<\/strong><\/p>\n<p>\u60f3\u8981\u91ca\u653e\u7184\u5c4f\u9501\u5b9a\uff0c\u5219\u53ef\u4ee5\u501f\u52a9\u4e0a\u9762\u7684wakeLock\u5bf9\u8c61\uff0c\u4ee3\u7801\u793a\u610f\uff1a<\/p>\n<pre>wakeLock.release().then(() =&gt; {\r\n  wakeLock = null;\r\n});<\/pre>\n<p>\u4ee5\u53ca\uff0c\u6211\u4eec\u53ef\u4ee5\u77e5\u9053\u4ec0\u4e48\u65f6\u5019\u5524\u9192\u9501\u5b9a\u662f\u4ec0\u4e48\u65f6\u5019\u91ca\u653e\u7684\uff0c\u4f7f\u7528release\u4e8b\u4ef6\uff1a<\/p>\n<pre>wakeLock.addEventListener('release', () =&gt; {\r\n    console.log('\u5524\u9192\u9501\u5b9a\u5df2\u91ca\u653e');\r\n});<\/pre>\n<p>\u76f8\u5173\u4ee3\u7801\u5728demo\u6f14\u793a\u9875\u9762\u5747\u6709\u4f53\u73b0\u3002<\/p>\n<h3>\u4e09\u3001\u52b2\u9152\u867d\u597d\uff0c\u53ef\u522b\u8d2a\u676f<\/h3>\n<p>\u5c4f\u5e55\u5524\u8d77\u9501\u5b9a\u4e0d\u662f\u6ca1\u6709\u4ee3\u4ef7\u7684\uff0c\u5982\u679c\u5c4f\u5e55\u4e00\u76f4\u4fdd\u6301\u660e\u4eae\uff0c\u4f1a\u963b\u6b62\u5c4f\u5e55\u4fdd\u62a4\u7a0b\u5e8f\u7684\u542f\u52a8\uff0c\u4f1a\u5f71\u54cd\u663e\u793a\u5668\u7684\u5bff\u547d\u3002<\/p>\n<p>\u5bf9\u4e8e\u79fb\u52a8\u8bbe\u5907\uff0c\u5c4f\u5e55\u5f80\u5f80\u662f\u6700\u8017\u7535\u7684\uff0c\u56e0\u6b64\uff0c\u963b\u6b62\u7184\u5c4f\u4f1a\u5e26\u6765\u66f4\u9ad8\u7684\u7535\u91cf\u5f00\u9500\uff0c\u56e0\u6b64\uff0c\u975e\u5fc5\u8981\u573a\u666f\u662f\u4e0d\u63a8\u8350\u542f\u7528\u7184\u5c4f\u9501\u5b9a\u7684\u3002<\/p>\n<p><strong>\u8981\u6c42<\/strong><\/p>\n<p>\u6b64API\u8981\u60f3\u751f\u6548\uff0c\u9700\u8981\u662fhttps\u534f\u8bae\uff0c\u6216\u8005\u662flocalhost\u672c\u5730\u73af\u5883\u3002<\/p>\n<p><strong>\u517c\u5bb9\u6027<\/strong><\/p>\n<p>\u76ee\u524dChrome\u548cSafari\u6d4f\u89c8\u5668\u5747\u5df2\u7ecf\u652f\u6301wake-lock\u7279\u6027\uff0cFirefox\u5df2\u7ecf\u5f00\u542f\u5b9e\u9a8c\u652f\u6301\uff0c\u6309\u7167\u5386\u53f2\u7ecf\u9a8c\uff0c\u6ca1\u591a\u4e45\u5c31\u4f1a\u6b63\u5f0f\u652f\u6301\u4e86\uff0c\u6b64API\u5168\u9762\u4f7f\u7528\u6307\u65e5\u53ef\u5f85\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202403\/2024-03-17_230502.png\" width=\"649\" height=\"248\" alt=\"screen wake lock \u517c\u5bb9\u6027\" class=\"alignnone size-medium\" \/><\/p>\n<p><strong>\u788e\u788e\u5ff5\u65f6\u95f4<\/strong><\/p>\n<p>\u6625\u8282\u524d\u65b0\u4e66\u5199\u5b8c\uff0c\u4e8e\u662f\u51b3\u5b9a\u7ed9\u81ea\u5df1\u653e\u4e09\u4e2a\u6708\u7684\u5047\uff0c\u6bcf\u5929\u65e9\u7761\uff0c\u6bcf\u5468\u9493\u4e24\u573a\u9c7c\uff0c\u81ea\u7136\u800c\u7136\uff0c\u6587\u7ae0\u66f4\u65b0\u9891\u7387\u5c31\u4e0b\u6765\u4e86\u3002<\/p>\n<p>\u4e00\u8f6c\u773c\uff0c\u4e5f\u662f\u5feb40\u7684\u4eba\u4e86\uff0c\u65f6\u95f4\u771f\u7684\u662f\u5757\uff0c\u4eca\u5929\u8fd8\u770b\u4e86\u81ea\u5df110\u5e74\u524d\u7684\u7167\u7247\uff0c\u4eff\u4f5b\u5c31\u5728\u6628\u5929\u3002<\/p>\n<p>\u5fc3\u6001\u4e5f\u53d8\u4e86\u5f88\u591a\uff0c\u66f4\u5e73\u548c\uff0c\u66f4\u7a33\u5b9a\u4e86\uff0c\u4f46\u4e5f\u9020\u6210\u521b\u9020\u529b\u4e0b\u964d\u4e86\uff0c\u4ee5\u5f80\u7684\u90a3\u4e9b\u5947\u601d\u5999\u60f3\u73b0\u5728\u5f88\u96be\u518d\u8ff8\u53d1\u51fa\u6765\u4e86\uff0c\u6240\u4ee5\uff0c\u7a76\u7adf\u662f\u53d8\u5f97\u66f4\u597d\u8fd8\u662f\u6709\u6240\u9000\u6b65\uff0c\u4e00\u65f6\u4e5f\u8bf4\u4e0d\u6e05\u695a\u3002<\/p>\n<p>\u4e00\u76f4\u60f3\u4ec0\u4e48\u65f6\u5019\u5f04\u4e2a\u9c7c\u5858\u73a9\u73a9\uff0c\u53ef\u60dc\u5f53\u4e0b\u6ca1\u6709\u90a3\u4e48\u591a\u65f6\u95f4\u548c\u7cbe\u529b\uff0c\u96be\u9053\u8981\u7b49\u9000\u4f11\uff0c\u6216\u8005\u517c\u804c\u641e\u9c7c\u5858\uff0c\u4e0d\u884c\u4e0d\u884c\uff0c\u6ca1\u90a3\u4e48\u591a\u65f6\u95f4\u3002<\/p>\n<p>\u54ce\u5440\uff0c\u60f3\u8fdc\u4e86\uff0c\u5148\u6362\u4e2a\u53ef\u4ee5\u968f\u4fbf\u517b\u9c7c\u7684\u5927\u623f\u5b50\u518d\u8bf4\u5427\u3002<\/p>\n<p>????<\/p>\n<p>\u672c\u6587\u4e3a\u539f\u521b\u6587\u7ae0\uff0c\u6b22\u8fce\u5206\u4eab\uff0c\u52ff\u5168\u6587\u8f6c\u8f7d\uff0c\u5982\u679c\u5b9e\u5728\u559c\u6b22\uff0c\u53ef\u6536\u85cf\uff0c\u6c38\u4e0d\u8fc7\u671f\uff0c\u4e14\u4f1a\u53ca\u65f6\u66f4\u65b0\u77e5\u8bc6\u70b9\u53ca\u4fee\u6b63\u9519\u8bef\uff0c\u9605\u8bfb\u4f53\u9a8c\u4e5f\u66f4\u597d\u3002<br \/>\n\u672c\u6587\u5730\u5740\uff1a<a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=11135\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=11135<\/a><\/p>\n<p>\uff08\u672c\u7bc7\u5b8c\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202403\/wakeup-cover.png\" width=\"160\" height=\"102\" alt=\"wake up\" class=\"alignright size-medium\" loading=\"lazy\" \/><\/p>\n<p>\u5168\u65b0\u7684Screen Wake Lock 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