Question

我无法使用my favourite tool找到任何明确的内容，但我想我会把它放在这里......

有没有办法使用iPhone SDK，让应用程序检测设备是否处于接收电源状态（充电，停靠等）？

我希望能够在设备接通电源时自动禁用idleTimer（否则它是用户指定的设置）。

Answer 1

你最好使用：

[[UIDevice currentDevice] setBatteryMonitoringEnabled:YES];

if ([[UIDevice currentDevice] batteryState] != UIDeviceBatteryStateUnplugged) {
      [UIApplication sharedApplication].idleTimerDisabled=YES;
    }

这是因为你必须要关心自己两个不同的状态 - 一个是电池充电，另一个是充满电。

如果确实希望完成它 - 您将注册接收电池监控通知，因此如果用户断开主电源等，您可以重新启用空闲计时器。

Answer 2

是的，UIDevice能够告诉你：

[[UIDevice currentDevice] setBatteryMonitoringEnabled:YES];

if ([[UIDevice currentDevice] batteryState] == UIDeviceBatteryStateCharging) {
    NSLog(@"Device is charging.");
}

有关详细信息，请参阅文档中的UIDevice参考，以及其他值为batteryState的信息。

Answer 3

Swift 4

:quit!

Swift 3

UIDevice.current.isBatteryMonitoringEnabled = true

if (UIDevice.current.batteryState != .unplugged) {
    print("Device is charging.")
}

Answer 4

斯威夫特3：

doskey ll=dir

Answer 5

您可以使用darwin notification center并使用活动名称com.apple.springboard.fullycharged。

这样您就会收到自定义方法的通知，这里是代码片段：

// Registering for a specific notification
NSString *notificationName = @"com.apple.springboard.fullycharged";
CFNotificationCenterAddObserver(CFNotificationCenterGetDarwinNotifyCenter(),
                                NULL,
                                yourCustomMethod,
                                (__bridge CFStringRef)notificationName,
                                NULL, 
                                CFNotificationSuspensionBehaviorDeliverImmediately);

// The custom method that will receive the notification
static void yourCustomMethod(CFNotificationCenterRef center, void *observer, CFStringRef name, const void *object, CFDictionaryRef userInfo)
{
  NSString *nameOfNotification = (__bridge NSString*)name;

  if([nameOfNotification isEqualToString:notificationName])
  {
    // Do whatever you want...
  }
}

Answer 6

Swift 4.2

布尔值

    var batteryState: Bool {
        IDevice.current.isBatteryMonitoringEnabled = true
        let state = UIDevice.current.batteryState

        if state == .charging || state == .full {
            print("Device plugged in.")
            return true

        } else {
            return false
        }

    }

Answer 7

func checkForCharging() {

UIDevice.current.isBatteryMonitoringEnabled = true

if UIDevice.current.batteryState != .unplugged {

print("Batery is charging")

} else if UIDevice.current.batteryState == .unplugged {

print("Check the cable")

}

Answer 8

如果您要检查的地方不止一个类似这样的地方。

class Device {

    static let shared = Device()

    func checkIfOnCharcher() -> Bool {
        UIDevice.current.isBatteryMonitoringEnabled = true
        if (UIDevice.current.batteryState != .unplugged) {
            return true
        } else {
            return false
        }
    }
}

用法：

if Device.shared.checkIfOnCharcher() == true { 
      //Some Code
} else { 
   // Some code
}

Answer 9

...和@Brad对 Swift 5 的回答：

user joined room {some.id}

Answer 10

正如许多人所说，您可以使用UIDevice.current.batteryState来检测此状态。

但是您可以做得更多，并使用Notification Center查看状态何时更改。

下面是一个示例，如果您希望在插入应用程序时屏幕保持不醒：

雨燕5

    class BatteryManager {
        static let shared: BatteryManager = .init()

        private init() {
            UIDevice.current.isBatteryMonitoringEnabled = true
    
            NotificationCenter.default.addObserver(
                self,
                selector: #selector(batteryStateDidChange),
                name: UIDevice.batteryStateDidChangeNotification,
                object: nil
            )
        }
    
        deinit {    
            NotificationCenter.default.removeObserver(
                self,
                name: UIDevice.batteryStateDidChangeNotification,
                object: nil
            )
        }
    
        @objc private func batteryStateDidChange() {
            let state = UIDevice.current.batteryState
    
            UIApplication.shared.isIdleTimerDisabled = state == .full || state == .charging
        }
    }

检测设备是否正在充电

10 个答案:

雨燕5