Android 12 Kiosk模式下屏幕超时后NFC功能失效问题求助

我们有多台通过Android Management API管控、运行在Kiosk模式的设备。从Android 10升级到Android 12后，遇到了NFC扫描的异常问题：设备重启后NFC功能完全正常，手动按电源键休眠再唤醒也没问题，但当设备因屏幕超时自动休眠后，按电源键唤醒时NFC就会停止工作。

NfcService调试日志（设备解锁后静置至自动锁定过程） #

2022-09-01 21:12:16.245 2325-2325/? D/NfcService: BroadcastReceiver - SCREEN_STATE_ON_UNLOCKED
2022-09-01 21:12:16.271 2325-2325/? D/NfcService: NfcServiceHandler - handleMessage(MSG_APPLY_SCREEN_STATE) - state: ON_UNLOCKED
2022-09-01 21:12:16.273 2325-2325/? D/NfcService: Discovery configuration equal, not updating.
2022-09-01 21:12:16.442 2325-4028/? D/NfcService: Disabling default Beam behavior
2022-09-01 21:12:16.520 2325-2325/? D/NfcService: BroadcastReceiver - SCREEN_STATE_ON_LOCKED
2022-09-01 21:12:16.520 2325-2325/? D/NfcService: NfcServiceHandler - handleMessage(MSG_APPLY_SCREEN_STATE) - state: ON_LOCKED
2022-09-01 21:12:17.284 2325-2325/? D/NfcService: NfcServiceHandler - debounceRfField() - debouncing RF_FIELD: 0 (cur:0, pol:true)
2022-09-01 21:12:17.284 2325-2325/? D/NfcService: NfcServiceHandler - debounceRfField() - Ignoring, already the current state
2022-09-01 21:12:18.244 2325-2325/? D/NfcService: BroadcastReceiver - SCREEN_STATE_OFF_LOCKED
2022-09-01 21:12:18.244 2325-2325/? D/NfcService: NfcServiceHandler - handleMessage(MSG_APPLY_SCREEN_STATE) - state: OFF_LOCKED

从日志可见，屏幕本应处于解锁状态，却被触发进入锁定状态（SCREEN_STATE_ON_LOCKED）。实际测试中，设备刚唤醒时靠近NFC标签能立即完成扫描，但仅一秒后NFC就完全失效。我尝试过通过代码禁用keyguard，但未成功。

当前生效的设备策略 #

{
    "factoryResetDisabled": true,
    "systemUpdate": {
        "type": "WINDOWED",
        "startMinutes": 0,
        "endMinutes": 240,
        "freezePeriods": [
            {
                "startDate": {"month": 8,"day": 1},
                "endDate": {"month": 9,"day": 30}
            }
        ]
    },
    "applications": [
        {
            "packageName": "com.xxx.yyy",
            "installType": "KIOSK",
            "defaultPermissionPolicy": "GRANT",
            "autoUpdateMode": "AUTO_UPDATE_DEFAULT"
        }
    ],
    "funDisabled": true,
    "appAutoUpdatePolicy": "WIFI_ONLY",
    "kioskCustomization": {
        "statusBar": "NOTIFICATIONS_AND_SYSTEM_INFO_ENABLED",
        "deviceSettings": "SETTINGS_ACCESS_ALLOWED",
        "systemNavigation": "HOME_BUTTON_ONLY"
    },
    "tetheringConfigDisabled": true,
    "mobileNetworksConfigDisabled": false,
    "advancedSecurityOverrides": {
        "developerSettings": "DEVELOPER_SETTINGS_ALLOWED"
    }   ,
    "maximumTimeToLock": 0,
    "keyguardDisabled": true,
    "keyguardDisabledFeatures": "ALL_FEATURES"
}

我发现有两个类似问题，但其中的解决方案都不适用于我的场景：

• Android 11 Kiosk模式锁屏NFC问题
• Android 10 Kiosk模式下设备休眠后NFC应用停止工作

有没有人遇到过相同问题？或者能提供可行的解决方案？

内容的提问来源于stack exchange，提问作者Johan Ferreira