I am having a really weird problem here. I am trying to build an app to detect beacons. I don't have any real beacons yet so I am testing with an iPhone 5 and an iPad 3. The strange thing is that the transmitting is only working on the iPad, the iPhone doesn't work as a transmitter even though I used the same app on it.
But even with the iPad as a transmitter, the app only works sometimes - sometimes the iPhone will notify me that it has found a beacon, sometimes it doesn't. I've force-closed the app on the iPad and after the restart it worked, but then another time it doesn't. Since everything is working sporadically I think it can't be the code causing that behaviour, but it might be - I am not an experienced coder, I've just started this. My code is based on this tutorial http://www.devfright.com/ibeacons-tutorial-ios-7-clbeaconregion-clbeacon/
I first thought this might be the answer, but taht didn't solve it: it still did work sometimes, and sometimes it didn't.
Can anybody tell me what I am dealing with her?
Here is my code for the Tracker:
ladBeaconTracker.h
#import <UIKit/UIKit.h>
#import <CoreLocation/CoreLocation.h>
#import <CoreBluetooth/CoreBluetooth.h>
@interface ladBeaconTracker : UIViewController <CLLocationManagerDelegate>
@property (strong, nonatomic) CLBeaconRegion *beaconRegion;
@property (strong, nonatomic) CLLocationManager *locationManager;
@property (weak, nonatomic) IBOutlet UILabel *beaconFoundLabel;
@end
ladBeaconTracker.m
#import "ladBeaconTracker.h"
@interface ladBeaconTracker ()
@property NSUUID *uuid;
@end
@implementation ladBeaconTracker
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
self.locationManager = [[CLLocationManager alloc] init];
self.locationManager.delegate = self;
[self initRegion];
}
- (void)initRegion {
NSUUID *uuid = [[NSUUID alloc] initWithUUIDString:@"A5456D78-C85B-44C6-9F20-8268FD25EF8A"];
self.beaconRegion = [[CLBeaconRegion alloc]initWithProximityUUID:uuid identifier:@"Museum"];
[self.locationManager startMonitoringForRegion:self.beaconRegion];
NSLog(@"Region %@ initated", _beaconRegion.identifier);
}
- (void)locationManager:(CLLocationManager *)manager didEnterRegion:(CLRegion *)region {
[self.locationManager startRangingBeaconsInRegion:self.beaconRegion];
self.beaconRegion.notifyEntryStateOnDisplay = YES;
NSLog(@"Region %@ entered", _beaconRegion.identifier);
}
- (void)locationManager:(CLLocationManager *)manager didExitRegion:(CLRegion *)region {
[self.locationManager stopRangingBeaconsInRegion:self.beaconRegion];
NSLog(@"Region %@ exit", _beaconRegion.identifier);
}
- (void)locationManager:(CLLocationManager *)manager didRangeBeacons:(NSArray *)beacons inRegion:(CLBeaconRegion *)region{
CLBeacon *beacon = [[CLBeacon alloc] init];
beacon= [beacons lastObject];
self.beaconFoundLabel.text =@"Yes";
NSLog(@"Ranged Region %@", _beaconRegion.identifier );
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
/*
#pragma mark - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/
@end
And this is the transmitter-Code:
configViewController.h
#import <UIKit/UIKit.h>
#import <CoreLocation/CoreLocation.h>
#import <CoreBluetooth/CoreBluetooth.h>
@interface ConfigViewController : UIViewController <CBPeripheralManagerDelegate>
@property (strong,nonatomic) CLBeaconRegion *beaconRegion;
@property(strong,nonatomic) NSDictionary *beaconPeripheralData;
@property (strong, nonatomic) CBPeripheralManager *PeripheralManager;
@end
ConfigViewController.m
#import "ConfigViewController.h"
@interface ConfigViewController ()
@end
@implementation ConfigViewController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
[self initBeacon];
}
- (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)initBeacon {
NSUUID *uuid = [[NSUUID alloc] initWithUUIDString:@"A5456D78-C85B-44C6-9F20-8268FD25EF8A"];
self.beaconRegion = [[CLBeaconRegion alloc] initWithProximityUUID:uuid
major:1
minor:1
identifier:@"Museum"];
}
- (IBAction)transmitBeacon:(UIButton *)sender {
self.beaconPeripheralData = [self.beaconRegion peripheralDataWithMeasuredPower:nil];
self.PeripheralManager = [[CBPeripheralManager alloc]initWithDelegate:self queue:nil options:nil];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end
