LA.UM.9.15.2.C3/system/core/healthd/BatteryMonitor.cpphealthd中chg是AC还是usb充电读取的是/sys/class/power_supply/usb/typeBatteryMonitor::PowerSupplyTypeBatteryMonitor::readPowerSupplyType(constString8&path){staticSysfsStringEnumMap<int>suppl