How to get beacon major and minor id in didExitRegion

Question

I have created a iphone app for beacons. In that i want to display the message when i am exit from all the beacons region.

I dont want to display the message for every beacon exit region. For example, If have 3 beacons, I want to display the message only when i am exit of all the 3 beacons. Is it possible to do that?
And also i want to get the exiting beacon major and minor values in didExitRegion

I used the following code:

-(void)locationManager:(CLLocationManager*)manager
   didRangeBeacons:(NSArray*)beacons
          inRegion:(CLBeaconRegion*)region
{
// Beacon found!
NSLog(@"iBeacons found");
//    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Successfully found" message:nil delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles: nil]; [alert show];

CLBeacon *foundBeacon = [beacons firstObject];

// You can retrieve the beacon data from its properties
NSString *uuid = foundBeacon.proximityUUID.UUIDString;
NSString *majorId = [NSString stringWithFormat:@"%@", foundBeacon.major];
NSString *minorId = [NSString stringWithFormat:@"%@", foundBeacon.minor];
NSLog(@"UUID: %@", uuid);
}

In the above code i can get the uuid, major, minor of the beacons. But I want to get the values of the exiting beacon in didExitRegion. Is it possible?

Thanks in advance.

Alex Andrews Alex Andrews · Accepted Answer · 2014-07-15T10:18:13

Use a mutable array to keep track of the region details of the detected beacon. And update that array with detection of new beacon regions. Like the code below

In delegate method didDetermineState add

- (void)locationManager:(CLLocationManager *)manager didDetermineState:(CLRegionState)state forRegion:(CLRegion *)region
{
    if(state == CLRegionStateInside)
    {
        [regions addObject:region]; // regions is the mutable array 
    }
}

And with didExitRegion method add

// Tells the delegate that the user left the specified region. 
    - (void)locationManager:(CLLocationManager *)manager didExitRegion:(CLRegion *)region
    {
        [regions removeObject:region];
        CLBeaconRegion *beaconRegion = (CLBeaconRegion *)region;
        NSLog(@"\nExited region id: %@",beaconRegion.identifier);
        NSLog(@"\nExited region major: %@",beaconRegion.major);
        NSLog(@"\nExited region minor: %@",beaconRegion.minor);

       // Add a check with regions array here to show the custom alert message

    }

How to get beacon major and minor id in didExitRegion

2 Answers