ios UIDeviceBattery【电池的状态处理：电池状态获取及监测、电池电量获取及监测、低电量模式切换监测】
前言
需求：
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作者：iOS进阶
电量低于 <= 50 %进行报警
name:NSProcessInfoPowerStateDidChangeNotification
UIDeviceBatteryLevelDidChangeNotification
[[NSNotificationCenter defaultCenter]
addObserverForName:UIDeviceBatteryLevelDidChangeNotification
object:nil queue:[NSOperationQueue mainQueue]
usingBlock:^(NSNotification *notification) {
// Level has changed
[UIDevice currentDevice].batteryMonitoringEnabled = YES;
NSLog(@"Battery Level Change");
NSLog(@"电池电量：%.2f", [UIDevice currentDevice].batteryLevel);
}];
UIDeviceBatteryStateDidChangeNotification
一、电池状态获取及监测code
#pragma mark - 电池状态获取及监控
-(void)checkAndMonitorBatteryState{
UIDevice * device = [UIDevice currentDevice];
//是否允许监测电池
//要想获取电池状态和监控电池状态 必须允许
device.ba
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作者：iOS进阶
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