iOS开发：电池电量监测

来源：互联网发布：目前游戏的编程语言编辑：程序博客网时间：2024/05/17 23:16

一、电池状态获取及监测

#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.batteryMonitoringEnabled = true;    //1、check    /*     电池状态     typedef NS_ENUM(NSInteger, UIDeviceBatteryState) {     UIDeviceBatteryStateUnknown,     UIDeviceBatteryStateUnplugged,   // on battery, discharging     UIDeviceBatteryStateCharging,    // plugged in, less than 100%     UIDeviceBatteryStateFull,        // plugged in, at 100%     } __TVOS_PROHIBITED;     */    UIDeviceBatteryState state = device.batteryState;    NSArray *stateArray = [NSArray arrayWithObjects:@"未开启监视电池状态",@"电池未充电状态",@"电池充电状态",@"电池充电完成",nil];    NSLog(@"电池状态：%@", [stateArray objectAtIndex:state]);        //2、monitor    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(didChangBatteryState:) name:@"UIDeviceBatteryStateDidChangeNotification" object:device];}-(void)didChangBatteryState:(NSNotification *)notification{    //电池状态发生改变时调用    }

二、电池电量获取及监测

#pragma mark - 电池电量获取及监控-(void)checkAndMonitorBatteryLevel{        //拿到当前设备    UIDevice * device = [UIDevice currentDevice];        //是否允许监测电池    //要想获取电池电量信息和监控电池电量 必须允许    device.batteryMonitoringEnabled = true;        //1、check    /*     获取电池电量     0 .. 1.0. -1.0 if UIDeviceBatteryStateUnknown     */    float level = device.batteryLevel;    NSLog(@"level = %lf",level);        //2、monitor    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(didChangeBatteryLevel:) name:@"UIDeviceBatteryLevelDidChangeNotification" object:device];    }- (void)didChangeBatteryLevel:(id)sender{    //电池电量发生改变时调用    UIDevice *myDevice = [UIDevice currentDevice];    [myDevice setBatteryMonitoringEnabled:YES];    float batteryLevel = [myDevice batteryLevel];    NSLog(@"电池剩余比例：%@", [NSString stringWithFormat:@"%f",batteryLevel*100]);}

三、低电量模式切换监测

#pragma mark - 低电量模式切换-(void)checkAndMonitorPowerMode{    //1、check    //是否处于低电量模式    if ([[NSProcessInfo processInfo] isLowPowerModeEnabled]) {        NSLog(@"处在低电量模式");    }    else{        NSLog(@"未处于低电量模式");    }        //2、monitor    //低电量模式切换通知    [[NSNotificationCenter defaultCenter] addObserver:self                                             selector:@selector(didChangePowerMode:)                                                 name:NSProcessInfoPowerStateDidChangeNotification                                               object:nil];}//收到低电量通知之后调用的方法//PS:手动设置低电量模式时，程序会回到后台，当程序从后台回到前台时就会调用该方法- (void)didChangePowerMode:(NSNotification *)notification {    if ([[NSProcessInfo processInfo] isLowPowerModeEnabled]) {        NSLog(@"打开低电量模式");    } else {        NSLog(@"关闭低电量模式");    }}

参考文章：

1、获取IOS设备的电量信息：Battery Level - iPhone手机开发技术文章 - 红黑联盟

2、[iOS] 如何检测 iPhone 处于低电量模式 - 推酷

3、IOS 电池状态监控 - 永远在跟随，从未去超越 - 博客频道 - CSDN.NET

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