Swift 从IOPSCopyPowerSourcesInfo()中提取值
我有以下代码:Swift 从IOPSCopyPowerSourcesInfo()中提取值,swift,iokit,Swift,Iokit,我有以下代码: var source = IOPSCopyPowerSourcesInfo() print(source) 当我运行它时,它会返回以下内容: Optional(Swift.Unmanaged<Swift.AnyObject>(_value: <__NSCFArray 0x60800026f4c0>( { "Battery Provides Time Remaining" = 1; BatteryHealth = Good; Cu
var source = IOPSCopyPowerSourcesInfo()
print(source)
当我运行它时,它会返回以下内容:
Optional(Swift.Unmanaged<Swift.AnyObject>(_value: <__NSCFArray 0x60800026f4c0>(
{
"Battery Provides Time Remaining" = 1;
BatteryHealth = Good;
Current = "-1756";
"Current Capacity" = 56;
DesignCycleCount = 1000;
"Hardware Serial Number" = C0143160D1JF90MAU;
"Is Charging" = 0;
"Is Present" = 1;
"Max Capacity" = 100;
Name = "InternalBattery-0";
"Power Source ID" = 4063331;
"Power Source State" = "Battery Power";
"Time to Empty" = 117;
"Time to Full Charge" = 0;
"Transport Type" = Internal;
Type = InternalBattery;
}
)
))
可选(Swift.非托管(\u值:(
{
“电池提供剩余时间”=1;
电池健康=良好;
当前=“-1756”;
“当前容量”=56;
设计周期计数=1000;
“硬件序列号”=C0143160D1JF90MAU;
“正在充电”=0;
“存在”=1;
“最大容量”=100;
Name=“InternalBattery-0”;
“电源ID”=4063331;
“电源状态”=“电池电源”;
“清空时间”=117;
“完全充电时间”=0;
“运输类型”=内部;
类型=内部电池;
}
)
))
我试图从这个闭包中得到“正在收费”的值。我该怎么做
我是Swift的新手,因此任何帮助都将不胜感激
提前谢谢 根据 客户端不应直接访问返回的CFTypeRef中的数据-它们应使用访问器函数IOPSCopyPowerSourcesList和IOPSGetPowerSourcesDescription 以下是一个例子:
import IOKit.ps
let psInfo = IOPSCopyPowerSourcesInfo().takeRetainedValue()
let psList = IOPSCopyPowerSourcesList(psInfo).takeRetainedValue() as [CFTypeRef]
for ps in psList {
if let psDesc = IOPSGetPowerSourceDescription(psInfo, ps).takeUnretainedValue() as? [String: Any] {
if let type = psDesc[kIOPSTypeKey] as? String,
let isCharging = (psDesc[kIOPSIsChargingKey] as? Bool) {
print(type, "is charging:", isCharging)
}
}
}
输出示例:
InternalBattery is charging: false
电池正在充电:错误
源作为数组,然后第一个元素作为字典,然后元素[“正在收费”]?@Larme你能扩展一下吗?效果很好!非常感谢。