{"id":398,"date":"2023-06-18T17:04:37","date_gmt":"2023-06-18T09:04:37","guid":{"rendered":"https:\/\/www.gzlcy.cn\/?p=398"},"modified":"2023-06-18T17:04:37","modified_gmt":"2023-06-18T09:04:37","slug":"%e4%bc%98%e5%8c%96%e7%bd%91%e7%bb%9c%e6%b5%81%e9%87%8f%e6%b6%88%e8%80%97","status":"publish","type":"post","link":"http:\/\/www.gzlcy.cn\/?p=398","title":{"rendered":"\u4f18\u5316\u7f51\u7edc\u6d41\u91cf\u6d88\u8017"},"content":{"rendered":"

\u5728\u667a\u80fd\u624b\u673a\u7684\u6574\u4e2a\u751f\u547d\u5468\u671f\u5185\uff0c\u79fb\u52a8\u6570\u636e\u7f51\u7edc\u6d41\u91cf<\/a>\u5957\u9910\u7684\u8d39\u7528\u5f80\u5f80\u4f1a\u8d85\u51fa\u624b\u673a\u7684\u8eab\u4ef7\u3002\u5728 Android 7.0\uff08API \u7ea7\u522b 24\uff09\u548c\u66f4\u9ad8\u7248\u672c\u4e0a\uff0c\u7528\u6237\u53ef\u4ee5\u5728\u6574\u4e2a\u8bbe\u5907\u4e0a\u542f\u7528\u6d41\u91cf\u8282\u7701\u7a0b\u5e8f\uff0c\u4ee5\u4f18\u5316\u548c\u51cf\u5c11\u5176\u8bbe\u5907\u7684\u6d41\u91cf\u6d88\u8017\u3002\u5f53\u5728\u6f2b\u6e38\u3001\u7ed3\u7b97\u5468\u671f\u5373\u5c06\u7ed3\u675f\u6216\u4f7f\u7528\u5f88\u5c0f\u7684\u9884\u4ed8\u8d39\u6d41\u91cf\u5305\u65f6\uff0c\u6b64\u529f\u80fd\u7279\u522b\u6709\u7528\u3002<\/p>\n

\u5f53\u7528\u6237\u5728\u8bbe\u7f6e\u4e2d\u542f\u7528\u6d41\u91cf\u8282\u7701\u7a0b\u5e8f\u4e14\u8bbe\u5907\u91c7\u7528\u6309\u6d41\u91cf\u8ba1\u8d39\u7684\u7f51\u7edc\u65f6\uff0c\u7cfb\u7edf\u4f1a\u963b\u6b62\u540e\u53f0\u6d41\u91cf\u6d88\u8017\uff0c\u5e76\u6307\u793a\u5e94\u7528\u5728\u524d\u53f0\u5c3d\u53ef\u80fd\u51cf\u5c11\u6d41\u91cf\u6d88\u8017\u3002\u7528\u6237\u53ef\u4ee5\u5141\u8bb8\u7279\u5b9a\u5e94\u7528\u4f7f\u7528\u6309\u6d41\u91cf\u8ba1\u8d39\u7684\u540e\u53f0\u6d41\u91cf\u6d88\u8017\uff0c\u5373\u4f7f\u5728\u6253\u5f00\u6d41\u91cf\u8282\u7701\u7a0b\u5e8f\u65f6\u4e5f\u662f\u5982\u6b64\u3002<\/p>\n

Android 7.0\uff08API \u7ea7\u522b 24\uff09\u6269\u5c55\u4e86 ConnectivityManager API\uff0c\u4f7f\u5e94\u7528\u80fd\u591f\u5e76\u3002\u6211\u4eec\u5efa\u8bae\u5e94\u7528\u68c0\u67e5\u7528\u6237\u662f\u5426\u5df2\u542f\u7528\u6d41\u91cf\u8282\u7701\u7a0b\u5e8f\u5e76\u5c3d\u91cf\u9650\u5236\u524d\u53f0\u548c\u540e\u53f0\u6d41\u91cf\u6d88\u8017\u3002<\/p>\n

\u68c0\u67e5\u6d41\u91cf\u8282\u7701\u7a0b\u5e8f\u504f\u597d\u8bbe\u7f6e<\/p>\n

\u5728 Android 7.0\uff08API \u7ea7\u522b 24\uff09\u548c\u66f4\u9ad8\u7248\u672c\u4e0a\uff0c\u5e94\u7528\u53ef\u4ee5\u4f7f\u7528 ConnectivityManager API \u786e\u5b9a\u76ee\u524d\u6240\u5e94\u7528\u7684\u6d41\u91cf\u6d88\u8017\u9650\u5236\u8bbe\u7f6e\u3002 \u65b9\u6cd5\u5c06\u8fd4\u56de\u4ee5\u4e0b\u67d0\u4e2a\u503c\uff1a<\/p>\n

RESTRICT_BACKGROUND_STATUS_DISABLED<\/p>\n

\u6d41\u91cf\u8282\u7701\u7a0b\u5e8f\u5df2\u505c\u7528\u3002<\/p>\n

RESTRICT_BACKGROUND_STATUS_ENABLED<\/p>\n

\u7528\u6237\u5df2\u4e3a\u6b64\u5e94\u7528\u542f\u7528\u6d41\u91cf\u8282\u7701\u7a0b\u5e8f\u3002\u5e94\u7528\u5e94\u52aa\u529b\u9650\u5236\u524d\u53f0\u6d41\u91cf\u6d88\u8017\uff0c\u5e76\u59a5\u5584\u5904\u7406\u540e\u53f0\u6d41\u91cf\u6d88\u8017\u9650\u5236\u3002<\/p>\n

RESTRICT_BACKGROUND_STATUS_WHITELISTED<\/p>\n

\u7528\u6237\u5df2\u542f\u7528\u6d41\u91cf\u8282\u7701\u7a0b\u5e8f\uff0c\u4f46\u5141\u8bb8\u8be5\u5e94\u7528\u7ed5\u8fc7\u6b64\u8bbe\u7f6e\u3002\u5e94\u7528\u5e94\u52aa\u529b\u9650\u5236\u524d\u53f0\u548c\u540e\u53f0\u6d41\u91cf\u6d88\u8017\u3002<\/p>\n

\u6bcf\u5f53\u8bbe\u5907\u8fde\u63a5\u5230\u6309\u6d41\u91cf\u8ba1\u8d39\u7684\u7f51\u7edc\u65f6\u90fd\u9650\u5236\u6d41\u91cf\u6d88\u8017\uff0c\u5373\u4f7f\u6d41\u91cf\u8282\u7701\u7a0b\u5e8f\u5df2\u505c\u7528\u6216\u5141\u8bb8\u8be5\u5e94\u7528\u7ed5\u8fc7\u6b64\u8bbe\u7f6e\u3002\u4ee5\u4e0b\u793a\u4f8b\u4ee3\u7801\u4f7f\u7528 \u548c ConnectivityManager.getRestrictBackgroundStatus() \u786e\u5b9a\u5e94\u7528\u5e94\u4f7f\u7528\u591a\u5c11\u6d41\u91cf\uff1a<\/p>\n

Kotlin<\/p>\n

\n(getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager).apply {\n    \/\/ Checks if the device is on a metered network\n    if (isActiveNetworkMetered) {\n        \/\/ Checks user\u2019s Data Saver settings.\n        when (restrictBackgroundStatus) {\n            RESTRICT_BACKGROUND_STATUS_ENABLED -> {\n                \/\/ Background data usage is blocked for this app. Wherever possible,\n                \/\/ the app should also use less data in the foreground.\n            }\n            RESTRICT_BACKGROUND_STATUS_WHITELISTED -> {\n                \/\/ The app is allowed to bypass Data Saver. Nevertheless, wherever possible,\n                \/\/ the app should use less data in the foreground and background.\n            }\n            RESTRICT_BACKGROUND_STATUS_DISABLED -> {\n                \/\/ Data Saver is disabled. Since the device is connected to a\n                \/\/ metered network, the app should use less data wherever possible.\n            }\n        }\n    } else {\n        \/\/ The device is not on a metered network.\n        \/\/ Use data as required to perform syncs, downloads, and updates.\n    }\n}\n<\/pre>\n<\/p>\n
Java<\/p>\n
\nConnectivityManager connMgr = (ConnectivityManager)\n        getSystemService(Context.CONNECTIVITY_SERVICE);\n\/\/ Checks if the device is on a metered network\nif (connMgr.isActiveNetworkMetered()) {\n  \/\/ Checks user\u2019s Data Saver settings.\n  switch (connMgr.getRestrictBackgroundStatus()) {\n    case RESTRICT_BACKGROUND_STATUS_ENABLED:\n    \/\/ Background data usage is blocked for this app. Wherever possible,\n    \/\/ the app should also use less data in the foreground.\n    case RESTRICT_BACKGROUND_STATUS_WHITELISTED:\n    \/\/ The app is allowed to bypass Data Saver. Nevertheless, wherever possible,\n    \/\/ the app should use less data in the foreground and background.\n    case RESTRICT_BACKGROUND_STATUS_DISABLED:\n    \/\/ Data Saver is disabled. Since the device is connected to a\n    \/\/ metered network, the app should use less data wherever possible.\n  }\n} else {\n  \/\/ The device is not on a metered network.\n  \/\/ Use data as required to perform syncs, downloads, and updates.\n}\n<\/pre>\n<\/p>\n
\u6ce8\u610f\uff1a\u6b64\u884c\u4e3a\u5728 Android TV \u4e0a\u6709\u6240\u4e0d\u540c\u3002Android TV \u53ea\u4f1a\u8282\u6d41\uff0c\u800c\u4e0d\u4f1a\u963b\u6b62\u540e\u53f0\u6d41\u91cf\u6d88\u8017\u3002\u5e94\u7528\u5728\u524d\u53f0\u8fd0\u884c\u65f6\uff0c\u5176\u6d41\u91cf\u6d88\u8017\u901f\u7387\u9650\u5236\u5728 800 Kbps\uff1b\u5e94\u7528\u5728\u540e\u53f0\u8fd0\u884c\u65f6\uff0c\u5176\u6d41\u91cf\u6d88\u8017\u901f\u7387\u9650\u5236\u5728 10 Kbps\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528 ConnectivityManager.isActiveNetworkMetered() \u68c0\u6d4b Android TV \u5728\u4f55\u65f6\u9650\u5236\u6d41\u91cf\u6d88\u8017\u3002<\/p>\n
\u8bf7\u6c42\u6d41\u91cf\u9650\u5236\u6743\u9650<\/p>\n
\u5982\u679c\u60a8\u7684\u5e94\u7528\u9700\u8981\u5728\u540e\u53f0\u6d88\u8017\u6d41\u91cf\uff0c\u5b83\u53ef\u4ee5\u53d1\u9001 Settings.ACTION_IGNORE_BACKGROUND_DATA_RESTRICTIONS_SETTINGS intent \u6765\u8bf7\u6c42\u6d41\u91cf\u9650\u5236\u6743\u9650\uff0c\u8be5 intent \u5305\u542b\u60a8\u7684\u5e94\u7528\u8f6f\u4ef6\u5305\u540d\u79f0\u7684 URI\uff0c\u4f8b\u5982 package:MY_APP_ID\u3002<\/p>\n
\u53d1\u9001\u8be5 intent \u548c URI \u65f6\uff0c\u4f1a\u542f\u52a8\u8bbe\u7f6e\u5e94\u7528\uff0c\u5e76\u663e\u793a\u5e94\u7528\u7684\u6d41\u91cf\u6d88\u8017\u8bbe\u7f6e\u3002\u7528\u6237\u968f\u540e\u53ef\u4ee5\u51b3\u5b9a\u662f\u5426\u5141\u8bb8\u60a8\u7684\u5e94\u7528\u5728\u540e\u53f0\u4f7f\u7528\u6d41\u91cf\u3002\u5728\u53d1\u9001\u6b64 intent \u4e4b\u524d\uff0c\u6700\u597d\u5148\u8be2\u95ee\u7528\u6237\u662f\u5426\u8981\u4e3a\u4e86\u542f\u7528\u540e\u53f0\u6d41\u91cf\u6d88\u8017\u800c\u542f\u52a8\u8bbe\u7f6e\u5e94\u7528\u3002<\/p>\n
\u76d1\u63a7\u6d41\u91cf\u8282\u7701\u7a0b\u5e8f\u504f\u597d\u8bbe\u7f6e\u7684\u53d8\u66f4<\/p>\n
\u5e94\u7528\u53ef\u4ee5\u76d1\u63a7\u6d41\u91cf\u8282\u7701\u7a0b\u5e8f\u504f\u597d\u8bbe\u7f6e\u7684\u53d8\u66f4\uff0c\u65b9\u6cd5\u662f\u521b\u5efa\u4e00\u4e2a\u7528\u4e8e\u76d1\u542c ConnectivityManager.ACTION_RESTRICT_BACKGROUND_CHANGED \u7684 BroadcastReceiver\uff0c\u5e76\u5411  \u52a8\u6001\u6ce8\u518c\u8be5\u63a5\u6536\u5668\u3002\u5e94\u7528\u6536\u5230\u6b64\u5e7f\u64ad\u540e\uff0c\u5e94\u8c03\u7528 ConnectivityManager.getRestrictBackgroundStatus() \u6765\u3002<\/p>\n
\u6ce8\u610f\uff1a\u7cfb\u7edf\u53ea\u4f1a\u5c06\u6b64\u5e7f\u64ad\u53d1\u9001\u7ed9\u5411  \u52a8\u6001\u6ce8\u518c\u4ee5\u63a5\u6536\u6b64\u5e7f\u64ad\u7684\u5e94\u7528\u3002\u5728\u6e05\u5355\u4e2d\u6ce8\u518c\u4ee5\u63a5\u6536\u6b64\u5e7f\u64ad\u7684\u5e94\u7528\u5c06\u4e0d\u4f1a\u6536\u5230\u6b64\u5e7f\u64ad\u3002<\/p>\n
\u4f7f\u7528 Android \u8c03\u8bd5\u6865\u547d\u4ee4\u8fdb\u884c\u6d4b\u8bd5<\/p>\n
Android \u8c03\u8bd5\u6865 (ADB) \u63d0\u4f9b\u4e86\u4e00\u4e9b\u547d\u4ee4\uff0c\u53ef\u7528\u4e8e\u5728\u6d41\u91cf\u8282\u7701\u7a0b\u5e8f\u6761\u4ef6\u4e0b\u6d4b\u8bd5\u60a8\u7684\u5e94\u7528\u3002\u60a8\u53ef\u4ee5\u68c0\u67e5\u548c\u914d\u7f6e\u7f51\u7edc\u6743\u9650\uff0c\u6216\u8005\u5c06\u65e0\u7ebf\u7f51\u7edc\u8bbe\u4e3a\u6309\u6d41\u91cf\u8ba1\u8d39\uff0c\u4ee5\u4fbf\u5728\u4e0d\u6309\u6d41\u91cf\u8ba1\u8d39\u7684\u7f51\u7edc\u4e0a\u6d4b\u8bd5\u60a8\u7684\u5e94\u7528\u3002<\/p>\n
$ adb shell dumpsys netpolicy<\/p>\n
\u751f\u6210\u4e00\u4e2a\u62a5\u544a\uff0c\u5176\u4e2d\u5305\u62ec\u5f53\u524d\u5168\u5c40\u540e\u53f0\u7f51\u7edc\u9650\u5236\u8bbe\u7f6e\u3001\u5f53\u524d\u88ab\u5141\u8bb8\u7ed5\u8fc7\u6d41\u91cf\u8282\u7701\u7a0b\u5e8f\u7684\u8f6f\u4ef6\u5305 UID \u4ee5\u53ca\u5176\u4ed6\u5df2\u77e5\u8f6f\u4ef6\u5305\u7684\u7f51\u7edc\u6743\u9650\u3002<\/p>\n
$ adb shell cmd netpolicy<\/p>\n
\u663e\u793a\u7f51\u7edc\u653f\u7b56\u7ba1\u7406\u4e2d\u5fc3 (netpolicy) \u547d\u4ee4\u7684\u5b8c\u6574\u5217\u8868\u3002<\/p>\n
$ adb shell cmd netpolicy set restrict-background<\/p>\n
\u5f53\u4f20\u5165 true \u6216 false \u65f6\uff0c\u5206\u522b\u542f\u7528\u6216\u505c\u7528\u6d41\u91cf\u8282\u7701\u7a0b\u5e8f\u6a21\u5f0f\u3002<\/p>\n
$ adb shell cmd netpolicy add restrict-background-whitelist<\/p>\n
\u5c06\u6307\u5b9a\u7684\u8f6f\u4ef6\u5305 UID \u6dfb\u52a0\u5230\u8bb8\u53ef\u540d\u5355 (whitelist) \u4e2d\uff0c\u4ee5\u5141\u8bb8\u6309\u6d41\u91cf\u8ba1\u8d39\u7684\u540e\u53f0\u6d41\u91cf\u6d88\u8017\u3002<\/p>\n
$ adb shell cmd netpolicy remove restrict-background-whitelist<\/p>\n
\u4ece\u8bb8\u53ef\u540d\u5355 (whitelist) \u4e2d\u79fb\u9664\u6307\u5b9a\u7684\u8f6f\u4ef6\u5305 UID\uff0c\u5728\u542f\u7528\u4e86\u6d41\u91cf\u8282\u7701\u7a0b\u5e8f\u7684\u60c5\u51b5\u4e0b\u963b\u6b62\u6309\u6d41\u91cf\u8ba1\u8d39\u7684\u540e\u53f0\u6d41\u91cf\u6d88\u8017\u3002<\/p>\n
$ adb shell cmd netpolicy list wifi-networks<\/p>\n
\u5217\u51fa\u6240\u6709 Wi-Fi \u7f51\u7edc\uff0c\u663e\u793a\u5b83\u4eec\u662f\u5426\u6309\u6d41\u91cf\u8ba1\u8d39\u3002<\/p>\n
$  adb shell cmd netpolicy set metered-network true<\/p>\n
\u5c06\u5177\u6709\u6307\u5b9a SSID \u7684 Wi-Fi \u8bbe\u4e3a\u6309\u6d41\u91cf\u8ba1\u8d39\uff0c\u4ee5\u4fbf\u5728\u4e0d\u6309\u6d41\u91cf\u8ba1\u8d39\u7684\u7f51\u7edc\u4e0a\u6a21\u62df\u6309\u6d41\u91cf\u8ba1\u8d39\u7684\u7f51\u7edc\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5728\u667a\u80fd\u624b\u673a\u7684\u6574\u4e2a\u751f\u547d\u5468\u671f\u5185\uff0c\u79fb\u52a8\u6570\u636e\u7f51\u7edc\u6d41\u91cf\u5957\u9910\u7684\u8d39\u7528\u5f80\u5f80\u4f1a\u8d85\u51fa\u624b\u673a\u7684\u8eab\u4ef7\u3002\u5728 Android 7.0\uff08API \u7ea7\u522b 24\uff09\u548c\u66f4\u9ad8\u7248\u672c\u4e0a\uff0c\u7528\u6237\u53ef\u4ee5\u5728\u6574\u4e2a\u8bbe\u5907\u4e0a\u542f\u7528\u6d41\u91cf\u8282\u7701\u7a0b\u5e8f<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[788,578,787],"_links":{"self":[{"href":"http:\/\/www.gzlcy.cn\/index.php?rest_route=\/wp\/v2\/posts\/398"}],"collection":[{"href":"http:\/\/www.gzlcy.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.gzlcy.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.gzlcy.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.gzlcy.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=398"}],"version-history":[{"count":0,"href":"http:\/\/www.gzlcy.cn\/index.php?rest_route=\/wp\/v2\/posts\/398\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.gzlcy.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=398"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.gzlcy.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=398"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.gzlcy.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=398"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}