在iOS上获取电池健康信息

Question

app-store中目前有应用程序(因此它不需要越狱)告诉您:

1. iPhone上电池电量的确切百分比值.我已经尝试了Apple的官方代码示例,虽然它告诉您何时iPhone正在充电和放电,但它给我的值为5%的步骤.这些应用程序如何获得准确的电池百分比值？

2. 电池健康等应用展示

   • 当前最大容量与制造商容量
   • 当前的出院率
   • 终身电池循环计数

3. 同一应用程序还提供有关手机充电时的充电速率(以瓦特为单位)(检查图像)和当前充电器的额定功率的信息.

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当[UIDevice]提供的信息非常少而且几乎没有关于电池健康和性能的信息时,这些应用程序如何获得有关电池运行状况的详细信息.

Answer 1

我开发了一个解决方案,允许您在不调用任何私有API调用的情况下获取此信息(尽管我当然不能保证Apple会批准它).

虽然有问题的信息源自IOKit,但我找到了一种不依赖于IOKit的方法.我的解决方案完全没有任何私有API.相反,我开发了一个名为UIDeviceListener有效劫持IOKit数据的组件UIDevice.

试一试,我已经整理了一个简单的示例程序:https://github.com/eldoogy/PowerData

例如,以下是它检索的IOKit字典往往看起来像(注意它可能因iOS版本和设备型号,生成等而异):

{
    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;
}

Answer 2

此类应用程序很可能使用 IOKit 框架，该框架在 OS X 上是公共的，但在 iOS 上是私有的（Apple 不允许 App Store 应用程序使用私有框架，尽管有时在审核过程中可能会忽略它）。

您可以在此处查看示例项目。