问Eddystone信标探测问题

EN

- (void)viewDidLoad
{
    [super viewDidLoad];

    if ([CLLocationManager locationServicesEnabled]) {

        _locationManager = [[CLLocationManager alloc] init];
        self.locationManager.delegate = self;
        self.locationManager.pausesLocationUpdatesAutomatically = NO;
        [self.locationManager requestAlwaysAuthorization];

        NSUUID *uuid = [[NSUUID alloc] initWithUUIDString:@"f7826da6-4fa2-4e98-8024-bc5b71e0893e"];
        NSString *bundleIdentifier = [[NSBundle mainBundle] bundleIdentifier];

        CLBeaconRegion *beaconRegion = [[CLBeaconRegion alloc] initWithProximityUUID:uuid identifier:bundleIdentifier];
        self.locationManager.allowsBackgroundLocationUpdates = YES;
        [self.locationManager startMonitoringForRegion:beaconRegion];
        [self.locationManager startRangingBeaconsInRegion:beaconRegion];
        [self.locationManager startUpdatingLocation];
    }
    else {

        NSLog(@"location service is disabled");
    }
}

- (void)locationManager:(CLLocationManager *)manager
        didRangeBeacons:(nonnull NSArray<CLBeacon *> *)beacons
               inRegion:(nonnull CLBeaconRegion *)region
{
    NSLog(@"beacons count: %lu", (unsigned long)[beacons count]); // beacons count always "0"
}