iphone - iOS 核心蓝牙/iBeacon : Advertise an iBeacon and a peripheral service concurrently

Question

我正在为 iOS 编写一个应用程序，该应用程序要求该应用程序同时通告 iOS iBeacon 以及通告外围服务。有必要宣传该服务，而不是简单地在外设上发现该服务，因为用例需要中央(用 BLE 术语)在由于靠近 iBeacon 而被 iOS 唤醒(但仍在后台)后连接到外设。在中心后台运行的应用程序只能通过可用服务发现外围设备，而不是发现所有外围设备 [] ；我的代码可以宣传服务或 iBeacon，但我还没有弄清楚如何同时宣传这两者。 iBeacon 有可能使用 38 字节可用空间中的 21 字节，而根本没有足够的空间来宣传信标和服务？

这有效(信标):

self.beaconRegion = [[CLBeaconRegion alloc] initWithProximityUUID:uuid 
    major:1 
    minor:1 
    identifier:@"bentboolean"];
NSMutableDictionary *dict = [[self.beaconRegion peripheralDataWithMeasuredPower:nil] mutableCopy];    
[self.peripheralManager startAdvertising:dict ];

这有效(服务):

NSMutableDictionary *dict = [[NSMutableDictionary alloc] init];
[dict setValue:@[serviceUUID] forKey:CBAdvertisementDataServiceUUIDsKey];
[self.peripheralManager startAdvertising:dict ];

将两者加在一起，尝试同时宣传这两种服务是行不通的。它只宣传 Beacon，而不宣传服务:

self.beaconRegion = [[CLBeaconRegion alloc] initWithProximityUUID:uuid 
    major:1 
    minor:1 
    identifier:@"bentboolean"];
NSMutableDictionary *dict = [[self.beaconRegion peripheralDataWithMeasuredPower:nil] mutableCopy];  
[dict setValue:@[serviceUUID] forKey:CBAdvertisementDataServiceUUIDsKey];  
[self.peripheralManager startAdvertising:dict ];

感谢您的浏览!

Answer 1

我能够分别为接收器和信标使用单独的 CLLocationManager 和 CLBeaconRegion 来实现此目的:

#import "GRBothViewController.h"

@interface GRBothViewController ()

@end

@implementation GRBothViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];


    self.locationManager = [[CLLocationManager alloc] init];
    self.locationManager.delegate = self;

    self.locationScanner = [[CLLocationManager alloc] init];
    self.locationScanner.delegate = self;

    [self initBeacon];
    [self initRegion];
    [self locationManager:self.locationManager didStartMonitoringForRegion:self.scannerRegion];
}

- (void)initBeacon {
    NSLog(@"Starting beacon");

    NSUUID *uuid = [[NSUUID alloc] initWithUUIDString: @"23542266-18D1-4FE4-B4A1-23F8195B9D39"];
    self.beaconRegion = [[CLBeaconRegion alloc] initWithProximityUUID:uuid
                                                                major:1
                                                                minor:1
                                                           identifier:@"com.thisisgrow.Grow"];
    [self transmitBeacon:self];
}

- (IBAction)transmitBeacon:(id)sender {
    self.beaconPeripheralData = [self.beaconRegion peripheralDataWithMeasuredPower:nil];
    self.peripheralManager = [[CBPeripheralManager alloc] initWithDelegate:self
                                                                     queue:nil
                                                                   options:nil];
}

-(void)peripheralManagerDidUpdateState:(CBPeripheralManager *)peripheral {
    if (peripheral.state == CBPeripheralManagerStatePoweredOn) {
        NSLog(@"Powered On");
        [self.peripheralManager startAdvertising:self.beaconPeripheralData];
    } else if (peripheral.state == CBPeripheralManagerStatePoweredOff) {
        NSLog(@"Powered Off");
        [self.peripheralManager stopAdvertising];
    }
}

- (void)locationManager:(CLLocationManager *)manager didStartMonitoringForRegion:(CLRegion *)region {
    [self.locationManager startRangingBeaconsInRegion:self.beaconRegion];
}

- (void)initRegion {
    NSUUID *uuid = [[NSUUID alloc] initWithUUIDString:@"23542266-18D1-4FE4-B4A1-23F8195B9D39"];
    _scannerRegion = [[CLBeaconRegion alloc] initWithProximityUUID:uuid identifier:@"com.thisisgrow.Grow"];
    _scannerRegion.notifyEntryStateOnDisplay = YES;
    [_locationScanner startMonitoringForRegion:self.scannerRegion];
}

- (void)locationManager:(CLLocationManager *)manager didEnterRegion:(CLRegion *)region {
    //SCANNER
    [self.locationScanner startRangingBeaconsInRegion:self.scannerRegion];
}

-(void)locationManager:(CLLocationManager *)manager didExitRegion:(CLRegion *)region {
    //SCANNER HAS LEFT THE AREA
    [self.locationScanner stopRangingBeaconsInRegion:self.scannerRegion];
}

-(void)locationManager:(CLLocationManager *)manager didRangeBeacons:(NSArray *)beacons inRegion:(CLBeaconRegion *)region {
    CLBeacon *beacon = [[CLBeacon alloc] init];
    NSLog(@"Beacons: %d", [beacons count]);
    if(beacons && [beacons count]>0){
        beacon = [beacons firstObject];
    }
    else{

    }
}

这里唯一的限制是设备无法检测到自身。