iBeacon Example

1. Two iPhone4s are used to simulate the iBeacons
2. uuidgen is used using the Terminal for generating the UUIDString


Broadcast:
==========
#import <CoreLocation/CoreLocation.h>
#import <CoreBluetooth/CoreBluetooth.h>


@interface ViewController : UIViewController<CBPeripheralManagerDelegate>

@property (weak, nonatomic) IBOutlet UILabel *statusLabel;
@property (strong, nonatomic) CLBeaconRegion *myBeaconRegion;
@property (strong, nonatomic) NSDictionary *myBeaconData;
@property (strong, nonatomic) CBPeripheralManager *peripheralManager;

@end

-------------------------------------------------------------------------

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
 
    // Create a NSUUID object
    NSUUID *uuid = [[NSUUID alloc] initWithUUIDString:@"A77A1B68-49A7-4DBF-914C-760D07FBB87B"];
 
    // Initialize the Beacon Region
    self.myBeaconRegion = [[CLBeaconRegion alloc] initWithProximityUUID:uuid
                                                                  major:1
                                                                  minor:1
                                                             identifier:@"com.appcoda.testregion"];
}


- (IBAction)buttonClicked:(id)sender {
 
    // Get the beacon data to advertise
    self.myBeaconData = [self.myBeaconRegion peripheralDataWithMeasuredPower:nil];
 
    // Start the peripheral manager
    self.peripheralManager = [[CBPeripheralManager alloc] initWithDelegate:self
                                                                     queue:nil
                                                                   options:nil];
}



-(void)peripheralManagerDidUpdateState:(CBPeripheralManager*)peripheral
{
    if (peripheral.state == CBPeripheralManagerStatePoweredOn)
    {
        // Bluetooth is on
     
        // Update our status label
        self.statusLabel.text = @"Broadcasting...";
     
        // Start broadcasting
        [self.peripheralManager startAdvertising:self.myBeaconData];
    }
    else if (peripheral.state == CBPeripheralManagerStatePoweredOff)
    {
        // Update our status label
        self.statusLabel.text = @"Stopped";

        // Bluetooth isn't on. Stop broadcasting
        [self.peripheralManager stopAdvertising];
    }
    else if (peripheral.state == CBPeripheralManagerStateUnsupported)
    {
        self.statusLabel.text = @"Unsupported";
    }
}





Receiver's:
===========

#import <UIKit/UIKit.h>
#import <CoreLocation/CoreLocation.h>

@interface ViewController : UIViewController<CLLocationManagerDelegate>

@property (strong, nonatomic) CLBeaconRegion *myBeaconRegion;
@property (strong, nonatomic) CLLocationManager *locationManager;
@property (weak, nonatomic) IBOutlet UILabel *statusLabel;

@end



-------------------------------------------------------------------------




- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
 
    // Initialize location manager and set ourselves as the delegate
    self.locationManager = [[CLLocationManager alloc] init];
    self.locationManager.delegate = self;
 
    // Create a NSUUID with the same UUID as the broadcasting beacon
    NSUUID *uuid = [[NSUUID alloc] initWithUUIDString:@"A77A1B68-49A7-4DBF-914C-760D07FBB87B"];
 
    // Setup a new region with that UUID and same identifier as the broadcasting beacon
    self.myBeaconRegion = [[CLBeaconRegion alloc] initWithProximityUUID:uuid
                                                             identifier:@"com.appcoda.testregion"];
 
    // Tell location manager to start monitoring for the beacon region
    [self.locationManager startMonitoringForRegion:self.myBeaconRegion];
}




- (void)locationManager:(CLLocationManager*)manager didEnterRegion:(CLRegion*)region
{
    [self.locationManager startRangingBeaconsInRegion:self.beaconRegion];
   
   
    //-------------- Create LocalNotification to alert User ------------------
   
  UILocalNotification *notificaiton = [[UILocalNotification alloc] init];
  notificaiton.alertBody = @"Welcome User";
  notificaiton.soundName = @"Default";
  [[UIApplication sharedApplication] presentLocalNotificationNow:notificaiton];
   
}


-(void)locationManager:(CLLocationManager*)manager didExitRegion:(CLRegion*)region
{
    [self.locationManager stopRangingBeaconsInRegion:self.beaconRegion];
    self.beaconFoundLabel.text = @"No";
   
   
//-------------- Create LocalNotification to alert User ------------------

  UILocalNotification *notificaiton = [[UILocalNotification alloc] init];
  notificaiton.alertBody = @"GoodBye";
  notificaiton.soundName = @"Default";
  [[UIApplication sharedApplication] presentLocalNotificationNow:notificaiton];

}



-(NSString *)nameForProximity:(CLProximity)proximity {
switch(proximity) {

case CLProximityUnknown:
return @"Unknown";
break;

case CLProximityImmediate:
return @"Immediate";
break;

case CLProximityNear:
return @"Near";
break;

case CLProximityFar:
return @"Far";
break;

}
}



-(void)locationManager:(CLLocationManager*)manager
       didRangeBeacons:(NSArray*)beacons
              inRegion:(CLBeaconRegion*)region
{
 
   if(beacons.count) {

// Beacon found!
self.statusLabel.text = @"Beacon found!";


CLBeacon *foundBeacon = [beacons firstObject];
   NSLog(@"Message : %@", [self nameForProximity: foundBeacon.proximity);
 
// You can retrieve the beacon data from its properties
//NSString *uuid = foundBeacon.proximityUUID.UUIDString;
//NSString *major = [NSString stringWithFormat:@"%@", foundBeacon.major];
//NSString *minor = [NSString stringWithFormat:@"%@", foundBeacon.minor];

    } else {
   
    NSLog(@"No beacons found");
   
    }
}