iOS 获取电池状态

UIDeviceBatteryState deviceBatteryState = [UIDevice currentDevice].batteryState;if (deviceBatteryState == UIDeviceBatteryStateCharging || deviceBatteryState == UIDeviceBatteryStateFull) {    // It is charging}

typedef enum {   UIDeviceBatteryStateUnknown,   UIDeviceBatteryStateUnplugged,   UIDeviceBatteryStateCharging,   UIDeviceBatteryStateFull,} UIDeviceBatteryState;