我想知道在iOS上是否可以获取有关电池的信息,例如:电池容量(mA)、电压(V)、循环次数。
我知道UIDevice类,但电池电量不是我要找的。
试试UIDeviceListener,它基本上是通过不使用任何私有API从UIDevice
中窃取整个电池数据字典。它暴露了大量信息:
{
AdapterDetails = {
Amperage = 1000;
Description = "usb host";
FamilyCode = "-536854528";
PMUConfiguration = 1000;
Watts = 5;
};
AdapterInfo = 16384;
Amperage = 1000;
AppleRawCurrentCapacity = 1279;
AppleRawMaxCapacity = 1275;
AtCriticalLevel = 0;
AtWarnLevel = 0;
BatteryData = {
BatterySerialNumber = REDACTED;
ChemID = 355;
CycleCount = 524;
DesignCapacity = 1420;
Flags = 640;
FullAvailableCapacity = 1325;
ManufactureDate = REDACTED;
MaxCapacity = 1273;
MfgData = REDACTED;
QmaxCell0 = 1350;
StateOfCharge = 100;
Voltage = 4194;
};
BatteryInstalled = 1;
BatteryKey = "0003-default";
BootBBCapacity = 52;
BootCapacityEstimate = 2;
BootVoltage = 3518;
CFBundleIdentifier = "com.apple.driver.AppleD1815PMU";
ChargerConfiguration = 990;
CurrentCapacity = 1275;
CycleCount = 524;
DesignCapacity = 1420;
ExternalChargeCapable = 1;
ExternalConnected = 1;
FullyCharged = 1;
IOClass = AppleD1815PMUPowerSource;
IOFunctionParent64000000 = <>;
IOGeneralInterest = "IOCommand is not serializable";
IOInterruptControllers = (
IOInterruptController34000000,
IOInterruptController34000000,
IOInterruptController34000000,
IOInterruptController34000000
);
IOInterruptSpecifiers = (
<03000000>,
<26000000>,
<04000000>,
<24000000>
);
IOMatchCategory = AppleD1815PMUPowerSource;
IOPowerManagement = {
CurrentPowerState = 2;
DevicePowerState = 2;
MaxPowerState = 2;
};
IOProbeScore = 0;
IOProviderClass = AppleD1815PMU;
InstantAmperage = 0;
IsCharging = 0;
Location = 0;
Manufacturer = A;
MaxCapacity = 1275;
Model = "0003-A";
Serial = REDACTED;
Temperature = 2590;
TimeRemaining = 0;
UpdateTime = 1461830702;
Voltage = 4182;
"battery-data" = {
"0003-default" = <...>;
"0004-default" = <...>;
"0005-default" = <...};
"built-in" = 1;
}
UIDevice
文档,你只能获取电池电量、其状态并启用电池监控。
更新2019年2月15日:看起来iOS UIDevice
API 现在允许开发者访问设备的电池充电级别。哇!它目前公开了四个不同的API。从它们的外观来看,这些API并不是“私有的”,也就是说,开发者可以放心使用而不必担心苹果阻止你的应用进入AppStore。
获取设备电池状态
var batteryLevel: Float
(设备的电池充电级别)。var isBatteryMonitoringEnabled: Bool
(一个布尔值,指示是否启用电池监控(true)或未启用(false))。var batteryState: UIDevice.BatteryState
(设备的电池状态)。enum UIDevice.BatteryState
(设备的电池电源状态)。看看JSystemInfoKit库。
你需要先导入IOKit框架(从这里获取.framework文件/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/IOKit.framework),并在iOS项目中导入IOKit头文件(从这里获取)。
这里你可以找到所需使用的方法,以获取详细的电池信息。
此外,IOPSCopyPowerSourcesInfo(来自IOPowerSources.h)返回一个NSDictionary,其中包含更多信息,如电池健康状况。