ios 低电量模式检测监听

OBJECTIVE-C

[[NSNotificationCenter defaultCenter] addObserver:self
   selector: @selector(yourMethodName:)
   name: NSProcessInfoPowerStateDidChangeNotification
   object: nil];

SWIFT

NSNotificationCenter.defaultCenter().addObserver(
    self,
    selector: “yourMethodName:”,
    name: NSProcessInfoPowerStateDidChangeNotification,
    object: nil
)

OBJECTIVE-C

if ([[NSProcessInfo processInfo] isLowPowerModeEnabled]) {
    // Low Power Mode is enabled. Start reducing activity to conserve energy.
} else {
    // Low Power Mode is not enabled.
};

SWIFT

if NSProcessInfo.processInfo().lowPowerModeEnabled {
    // Low Power Mode is enabled. Start reducing activity to conserve energy.
} else {
    // Low Power Mode is not enabled.
}