扫描ibeacon

//引入框架 Info.plist需添加定位权限
#import<CoreLocation/CoreLocation.h>//CLLocationManagerDelegate
//声明赛格属性
@property (nonatomic, strong) NSArray *beaconArr;//存放扫描到的iBeacon
@property (strong, nonatomic) CLBeaconRegion *beacon1;//被扫描的iBeacon
@property (strong, nonatomic) CLLocationManager *locationManager;

///检测蓝牙状态需要引入框架
#import <CoreBluetooth/CoreBluetooth.h>//CBCentralManagerDelegate

初始化数据

- (void)viewDidLoad {
    [super viewDidLoad];
//检测蓝牙状态
    self.centralManager = [[CBCentralManager alloc] initWithDelegate:self queue:nil];
    
    //检测beacon设备
    self.searchArray = [NSMutableArray array];
    self.beaconArr = [NSArray array];
    
    if ([CLLocationManager locationServicesEnabled]) {
        self.locationManager = [[CLLocationManager alloc] init];//初始化
        self.locationManager.delegate = self;
        //    self.locationManager.activityType = CLActivityTypeFitness;
        //    self.locationManager.distanceFilter = kCLDistanceFilterNone;
        //每隔多少米定位一次（这里的设置为任何的移动）
        //    _locationManager.distanceFilter=kCLDistanceFilterNone;
        //    _locationManager.desiredAccuracy=kCLLocationAccuracyBestForNavigation;
        
        //这句话ios8以上版本使用。
        [self.locationManager requestAlwaysAuthorization];//设置location是一直允许
        self.beacon1 = [[CLBeaconRegion alloc] initWithProximityUUID:[[NSUUID alloc] initWithUUIDString:BEACONUUID] identifier:BEACONUUID];//初始化监测的iBeacon信息
        self.beacon1.notifyEntryStateOnDisplay = YES;
        //    [self.locationManager startMonitoringForRegion:self.beacon1];
        [self.locationManager startRangingBeaconsInRegion:self.beacon1];
    }else{
        NSLog(@"提醒用户打开定位权限");
    }
    
    //    if ([CLLocationManager locationServicesEnabled]) {
    //        NSLog(@"定位功能可用");
    //        //定位功能可用
    //
    //    }else
    if ([CLLocationManager authorizationStatus] ==kCLAuthorizationStatusDenied) {
        
        //定位不能用
        NSLog(@"拒绝获取定位");
        [[HudManager manager] showHudWithText:@"用户拒绝了获取定位"];
    }
    if ([CLLocationManager authorizationStatus] ==kCLAuthorizationStatusRestricted) {
        
        //定位不能用
        NSLog(@"应用程序的定位权限被限制");
    }
}

检测蓝牙状态

#pragma mark --  CBCentralManagerDelegate
-(void)centralManagerDidUpdateState:(CBCentralManager *)central {
    /*
     CBCentralManagerStateUnknown = CBManagerStateUnknown,
     CBCentralManagerStateResetting = CBManagerStateResetting,
     CBCentralManagerStateUnsupported = CBManagerStateUnsupported,
     CBCentralManagerStateUnauthorized = CBManagerStateUnauthorized,
     CBCentralManagerStatePoweredOff = CBManagerStatePoweredOff,
     CBCentralManagerStatePoweredOn = CBManagerStatePoweredOn,
     */
    switch (central.state) {
        case CBCentralManagerStateUnknown:
            NSLog(@"蓝牙状态未知");//0
            break;
        case CBCentralManagerStateResetting:
            NSLog(@"设备连接蓝牙失败,请重试");//1
            break;
        case CBCentralManagerStateUnsupported:
            NSLog(@"当前设备不支持蓝牙");//2
            break;
        case CBCentralManagerStateUnauthorized:
            NSLog(@"当前设备未授权使用蓝牙");//3
            break;
        case CBCentralManagerStatePoweredOff:{
            NSLog(@"蓝牙没有开启，在设置中打开蓝牙");//4
        }
            break;
        case CBCentralManagerStatePoweredOn:
            NSLog(@"蓝牙已成功开启");//5
            break;
        default:
            break;
    }
}

遵守扫描IBeacon需要的协议方法

#pragma mark -- CLLocationManagerDelegate
//发现有iBeacon进入监测范围
-(void)locationManager:(CLLocationManager *)manager didEnterRegion:(CLRegion *)region{
    
    [self.locationManager startRangingBeaconsInRegion:self.beacon1];//开始RegionBeacons
}

//找的iBeacon后扫描它的信息
- (void)locationManager:(CLLocationManager *)manager didRangeBeacons:(NSArray *)beacons inRegion:(CLBeaconRegion *)region{
    //    NSLog(@"注册的Beacon信息===%@", region);
    //如果存在不是我们要监测的iBeacon那就停止扫描他
    if (![[region.proximityUUID UUIDString] isEqualToString:BEACONUUID]){
        [self.locationManager stopMonitoringForRegion:region];
        [self.locationManager stopRangingBeaconsInRegion:region];
        NSLog(@"停止扫描Beacon");
    }
    
    //控制是否实时刷新
     self.beaconArr = beacons;
}

打印详情数据

//将beacon的信息转换为NSString并返回
- (NSString *)detailsStringForBeacon:(CLBeacon *)beacon
{
    NSString *format = @"uuid=%@ \n major=%@ • minor=%@ \n proximity=%@ \n accuracy=%f • rssi=%li \n 实际距离=%f米";
    return [NSString stringWithFormat:format, beacon.proximityUUID, beacon.major, beacon.minor, [self stringForProximity:beacon.proximity], beacon.accuracy, beacon.rssi,[self calcDistByRSSI:beacon.rssi]];
}

#pragma mark -- 计算距离公式
- (float)calcDistByRSSI:(NSInteger)rssi
{
    int i = (int)rssi;
    int iRssi = abs(i);
    float power = (iRssi-59)/(10*2.0);
    return pow(10, power);
}

- (NSString *)stringForProximity:(CLProximity)proximity{
    NSString *proximityValue;
    switch (proximity) {
        case CLProximityNear:
            proximityValue = @"Near近";//近 (一米以内)
            break;
        case CLProximityImmediate:
            proximityValue = @"Immediate超近";//超 近 (十厘米以内)
            break;
        case CLProximityFar:
            proximityValue = @"Far远";//远 (一米以外)
            break;
        case CLProximityUnknown:
        default:
            proximityValue = @"Unknown未知状态";//不见了 (未知状态)
            break;
    }
    return proximityValue;
}