Location Services not requesting permission - ios

I have an odd thing going on.
FIXED: I was creating my CLLocationManager in the viewDidLoad method, so it was being cleaned by ARC almost immediately. I changed my instance to be a class instance instead of method instance and the problem is solved.
UPDATE: The view that is calling the Location Services is shown directly below. The request to allow location services pops up then immediately fades away.
- (void)viewDidLoad
{
[super viewDidLoad];
//Grab the JSON from dcJSONParser
NSURL *mainContentURL = [NSURL URLWithString:#"http://www.andrewlarking.co.uk/DigiCons/appContent.txt"];
dcJSONParser *mainJSONParser = [[dcJSONParser alloc]init];
NSDictionary *mainPageDictonary = [mainJSONParser getContentFromNSURL:mainContentURL];
//Grab the data from a specific JSON collection
NSArray *pageOneContent = mainPageDictonary[#"firstRunPage"];
for ( NSDictionary *pageOne in pageOneContent )
{
//Set the label
self.dcEventDayViewControllerBeaconNameLabel.text = pageOne[#"title"];
}
NSLog(#"Event Day View Loaded");
// Do any additional setup after loading the view.
// Start listening for events from the beacon manager.
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(didFindMint:) name:#"didLocateMint" object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(didFindBlue:) name:#"didLocateBlue" object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(didFindPurple:) name:#"didLocatePurple" object:nil];
//Set Up the beacon manager
dcBeaconManager *beaconManager = [[dcBeaconManager alloc]init];
[beaconManager initBeaconManager];
}
I'm using CLLocationServices but my app is not requesting permission to use Location Services. It appears in the list, and is off by default. I've read that permissions get stored on the device which may explain it as I've tested this app before, but testing on a new device gives the same result.
I don't use location services straight away, the app goes through a few checks and measures before deciding to call a view that uses location services. When it does, this is the code:
-(void)initBeacons {
dcBeaconManager *beaconManager = [[dcBeaconManager alloc]init]; //Create an instance of the dcBeaconManager class.
[beaconManager initBeaconManager]; //Start the beacon manager running.
}
The class that calls is:
#import "dcBeaconManager.h"
#implementation dcBeaconManager
-(id)init
{
self = [super init];
if (self != nil){}
return self;
}
bool testRanging = true;
bool firstRegionEntered = true;
- (void)initBeaconManager {
NSLog(#"initBeaconManager called");
self.locationManager = [[CLLocationManager alloc] init];
self.locationManager.delegate = self;
NSUUID *uuid = [[NSUUID alloc]initWithUUIDString:#"B9407F30-F5F8-466E-AFF9-25556B57FE6D"];
self.beaconRegion = [[CLBeaconRegion alloc] initWithProximityUUID:uuid identifier:#"digiConsRegion"];
[self.locationManager startMonitoringForRegion:self.beaconRegion];
}
- (void)stopBeaconManager {
[self.locationManager stopMonitoringForRegion:self.beaconRegion];
}
- (void)locationManager:(CLLocationManager *)manager didStartMonitoringForRegion:(CLRegion *)region {
NSLog(#"Started looking for regions");
[self.locationManager requestStateForRegion:self.beaconRegion];
}
- (void)locationManager:(CLLocationManager *)manager didEnterRegion:(CLRegion *)region {
NSLog(#"Region discovered");
if (firstRegionEntered) {
NSLog(#"First time in region");
firstRegionEntered = false;
}
[self.locationManager startRangingBeaconsInRegion:self.beaconRegion];
}
- (void)locationManager:(CLLocationManager *)manager didExitRegion:(CLRegion *)region {
NSLog(#"Region left");
[self.locationManager stopRangingBeaconsInRegion:self.beaconRegion];
UILocalNotification *notification = [[UILocalNotification alloc] init];
notification.alertBody = #"We hope you enjoyed the event, thank you for coming.";
notification.soundName = UILocalNotificationDefaultSoundName;
[[UIApplication sharedApplication] presentLocalNotificationNow:notification];
}
- (void)locationManager:(CLLocationManager *)manager didRangeBeacons:(NSArray *)beacons inRegion:(CLBeaconRegion *)region {
NSLog(#"locationManager initiated");
CLBeacon *beacon = [[CLBeacon alloc] init];
beacon = [beacons lastObject];
//Store some information about this beacon
NSNumber *currentBeaconMajor = beacon.major; //it's major (group) number
NSNumber *currentBeaconMinor = beacon.minor; //it's minor (individual) number
if (([currentBeaconMinor floatValue] == 59204) && ([currentBeaconMajor floatValue] == 33995) && (beacon.proximity == CLProximityNear)) {
NSLog(#"Mint discovered");
[[NSNotificationCenter defaultCenter] postNotificationName:#"didLocateMint" object:nil];
} else if (([currentBeaconMinor floatValue] == 7451) && ([currentBeaconMajor floatValue] == 63627) && (beacon.proximity == CLProximityNear)) {
NSLog(#"Blue discovered");
[[NSNotificationCenter defaultCenter] postNotificationName:#"didLocateBlue" object:nil];
} else if (([currentBeaconMinor floatValue] == 51657) && ([currentBeaconMajor floatValue] == 26976) && (beacon.proximity == CLProximityNear)) {
NSLog(#"Purple discovered");
[[NSNotificationCenter defaultCenter] postNotificationName:#"didLocatePurple" object:nil];
}
}
- (void)locationManager:(CLLocationManager *)manager didDetermineState:(CLRegionState)state forRegion:(CLRegion *)region {
if (testRanging) {
NSLog(#"Testing: forced ranging");
if ([region isEqual:self.beaconRegion] && state == CLRegionStateInside) {
[_locationManager startRangingBeaconsInRegion:(CLBeaconRegion *)region];
}
}
}
#end
None of the delegate methods get called, Malloc wondered about the Location Services initially so I've looked around and found the above peculiar error.
Any thoughts? I'm happy to share the entire project.
Cheers.

Related

Understanding iBeacons in iOS: didDetermineState and didEnterRegion events

Part one:
I have written the following code to monitor iBeacons. I would like to detect the didEnterRegion and didExitRegion event. However it never happens. Would you be able to take a look at the code and suggest what could be missing?
I use the Apple AirLocate sample code to configure one device as iBeacon and perform the following steps to test my code:
Steps:
compile and execute AirLocate sample code on device B
compile and execute this code on device A
in device B use AirLocate app to configure device as iBeacon choosing the following UUID: "74278BDA-B644-4520-8F0C-720EAF059935"
Results:
state inside message
Expected results:
state inside message
did enter region
Why is that?
Those are my plist entries:
Code:
#import "BeaconMonitoring.h"
#implementation BeaconMonitoring
- (instancetype)init
{
self = [super init];
if (self) {
self.locationManager = [[CLLocationManager alloc] init];
if([self.locationManager respondsToSelector:#selector(requestAlwaysAuthorization)]) {
[self.locationManager requestAlwaysAuthorization];
}
self.locationManager.delegate = self;
self.locationManager.pausesLocationUpdatesAutomatically = NO;
self.monitoredRegions = [[NSMutableArray alloc] initWithCapacity:10];
}
return self;
}
- (void) startRangingForBeacons{
NSLog(#"in startRangingForBeacons");
[self.locationManager startUpdatingLocation];
[self startMonitoringForRegion:[[NSUUID alloc] initWithUUIDString:#"74278BDA-B644-4520-8F0C-720EAF059935"] :#"b"];
}
- (void) startMonitoringForRegion:(NSUUID*)beaconUUID :(NSString*)regionIdentifier{
/**
Alternatively:
CLBeaconRegion *beaconRegion = [[CLBeaconRegion alloc] initWithProximityUUID:#"xxxx"
major:10
minor:20
identifier:#"name"]
**/
// Override point for customization after application launch.
CLBeaconRegion *beaconRegion = [[CLBeaconRegion alloc] initWithProximityUUID:beaconUUID identifier:regionIdentifier];
beaconRegion.notifyEntryStateOnDisplay = NO;
beaconRegion.notifyOnEntry = YES;
beaconRegion.notifyOnExit = YES;
[self.locationManager startMonitoringForRegion:beaconRegion];
[self.locationManager startRangingBeaconsInRegion:beaconRegion];
[self.monitoredRegions addObject:beaconRegion];
}
- (void) stopRangingForbeacons{
NSLog(#"in stopRangingForbeacons");
[self.locationManager stopUpdatingLocation];
for (int i=0; i < [self.monitoredRegions count]; i++) {
NSObject * object = [self.monitoredRegions objectAtIndex:i];
if ([object isKindOfClass:[CLBeaconRegion class]]) {
CLBeaconRegion * region = (CLBeaconRegion*)object;
[self.locationManager stopMonitoringForRegion:region];
[self.locationManager stopRangingBeaconsInRegion:region];
}
else{
NSLog(#"Serious error, should never happen!");
}
}
}
#pragma CLLocationManagerDelegate
-(void)locationManager:(CLLocationManager *)manager didEnterRegion:(CLRegion *)region {
[manager startRangingBeaconsInRegion:(CLBeaconRegion*)region];
[self.locationManager startUpdatingLocation];
NSLog(#"You entered the region.");
}
-(void)locationManager:(CLLocationManager *)manager didExitRegion:(CLRegion *)region {
[manager stopRangingBeaconsInRegion:(CLBeaconRegion*)region];
[self.locationManager stopUpdatingLocation];
NSDictionary * notificationData = #{ #"value" : #"exitedRegion"};
[[NSNotificationCenter defaultCenter] postNotificationName:#"dataUpdate" object:nil userInfo:notificationData];
NSLog(#"You exited the region.");
// [self sendLocalNotificationWithMessage:#"You exited the region."];
}
- (void) locationManager:(CLLocationManager *)manager didDetermineState:(CLRegionState)state forRegion:(CLRegion *)region
{
NSLog(#"did determine state");
switch (state) {
case CLRegionStateInside:
NSLog(#"state inside");
break;
case CLRegionStateOutside:
NSLog(#"state outside");
break;
case CLRegionStateUnknown:
NSLog(#"state unknown");
break;
default:
NSLog(#"Default case: Region unknown");
break;
}
}
-(void)locationManager:(CLLocationManager *)manager didRangeBeacons:(NSArray *)beacons inRegion:(CLBeaconRegion *)region {
NSLog(#"Did range %lu beacon in region %#", (unsigned long)[beacons count], region.identifier);
NSString * visibleInformation = [NSString stringWithFormat:#"(%lu)", (unsigned long)[beacons count]];
for (int i=0; i<[beacons count]; i++) {
CLBeacon *beacon = [beacons objectAtIndex:i];
if ([beacons count] == 1) {
NSNumber * distance = [NSNumber numberWithFloat:beacon.accuracy];
visibleInformation = [NSString stringWithFormat:#"%i-%i is %f", beacon.major.intValue, beacon.minor.intValue, distance.doubleValue];
}
else{
visibleInformation = [visibleInformation stringByAppendingString:[NSString stringWithFormat:#" %i-%i ", beacon.major.intValue, beacon.minor.intValue]];
}
}
}
#end
Part two:
I had a look at the AirLocate source code to understand if there was something that I had to trigger in the state inside message to get the monitoring working properly. However I found that the ** didDetermineState** method is implemented in the AppDelegate.
Why is that?
- (void)locationManager:(CLLocationManager *)manager didDetermineState:(CLRegionState)state forRegion:(CLRegion *)region
{
/*
A user can transition in or out of a region while the application is not running. When this happens CoreLocation will launch the application momentarily, call this delegate method and we will let the user know via a local notification.
*/
UILocalNotification *notification = [[UILocalNotification alloc] init];
if(state == CLRegionStateInside)
{
notification.alertBody = NSLocalizedString(#"You're inside the region", #"");
}
else if(state == CLRegionStateOutside)
{
notification.alertBody = NSLocalizedString(#"You're outside the region", #"");
}
else
{
return;
}
/*
If the application is in the foreground, it will get a callback to application:didReceiveLocalNotification:.
If it's not, iOS will display the notification to the user.
*/
[[UIApplication sharedApplication] presentLocalNotificationNow:notification];
}
Assumption: R = Region made by B and listened to by A
Case 1
IF A was started before B:
app A should tell you determine state for region R = outside
app A should run didEnter Region R
case 2
IF A was infact started after B:
it should only run determineState Region R = inside
the end. There is no 2 here because it never enters the range. it was started inside of it

Why beacons cause Bluetooth to continuously toggle?

I am experiencing a really weird bug working with iOS and iBeacon. I have a really simple BeaconManager that ranges beacons with particular UUID, major and minor values and performs some actions once it found them. My app seems to work properly until it continuously toggle the Bluetooth status and stop doing its job. The only visible result is that the Bluetooth icon in the status bar start flickering due to Bluetooth stopping and restarting.
Where to focus attention?
This is my class definition:
#import "BeaconManager.h"
#implementation BeaconManager
- (instancetype)init {
self = [super init];
if (self) {
NSURL *beep = [[NSBundle mainBundle] URLForResource:#"beep" withExtension:#"aiff"];
soundFileURLRef = (CFURLRef) CFBridgingRetain(beep);
AudioServicesCreateSystemSoundID(soundFileURLRef, &soundFileObject);
// Initializes properties
beacon = [CLBeacon new];
foundBeacons = [NSMutableArray new];
_lastBeaconActionTimes = [[NSMutableDictionary alloc] init];
}
return self;
}
- (void)initRegion {
// Initializes the beacon region by giving it an UUID and an identifier
NSUUID *uuid = [[NSUUID alloc] initWithUUIDString:BEACON];
beaconRegion = [[CLBeaconRegion alloc] initWithProximityUUID:uuid identifier:#"beacon.region"];
// Starts looking for beacon within the region
[self.locationManager startMonitoringForRegion:beaconRegion];
}
- (void)checkBeacon {
if (!self.locationManager) {
self.locationManager = [[CLLocationManager alloc] init];
self.locationManager.delegate = self;
if ([self.locationManager respondsToSelector:#selector(requestWhenInUseAuthorization)])
[self.locationManager requestWhenInUseAuthorization];
}
[self initRegion];
[self locationManager:self.locationManager didStartMonitoringForRegion:beaconRegion];
}
#pragma mark - CLLocationManagerDelegate
- (void)locationManager:(CLLocationManager *)manager didStartMonitoringForRegion:(CLRegion *)region {
[self.locationManager startMonitoringForRegion:beaconRegion];
[self.locationManager startRangingBeaconsInRegion:beaconRegion];
}
- (void)locationManager:(CLLocationManager *)manager didEnterRegion:(CLRegion *)region {
[self.locationManager startRangingBeaconsInRegion:beaconRegion];
}
- (void)locationManager:(CLLocationManager *)manager didExitRegion:(CLRegion *)region {
[self.locationManager stopRangingBeaconsInRegion:beaconRegion];
}
- (void)locationManager:(CLLocationManager *)manager monitoringDidFailForRegion:(CLRegion *)region withError:(NSError *)error {
NSLog(#"Failed monitoring region: %#", error);
}
- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error {
NSLog(#"Location manager failed: %#", error);
}
- (void)locationManager:(CLLocationManager *)manager
didRangeBeacons:(NSArray *)beacons
inRegion:(CLBeaconRegion *)region {
if (foundBeacons.count == 0) {
for (CLBeacon *filterBeacon in beacons) {
// If a beacon is located near the device and its major value is equal to 1000 (MAJOR constant)
if (((filterBeacon.proximity == CLProximityImmediate) || (filterBeacon.proximity == CLProximityNear)))
// Registers the beacon to the list of found beacons
[foundBeacons addObject:filterBeacon];
}
}
// Did some beacon get found?
if (foundBeacons.count > 0) {
// Takes first beacon of the list
beacon = [foundBeacons firstObject];
if (([beacon.major isEqualToNumber:[NSNumber numberWithInt:MAJOR]]) && ([beacon.minor isEqualToNumber:[NSNumber numberWithInt:MINOR]])) {
// Takes the actual date and time
NSDate *now = [[NSDate alloc] init];
NSString *key = [NSString stringWithFormat:#"%# %# %#", [beacon.proximityUUID UUIDString], beacon.major, beacon.minor];
NSDate *lastBeaconActionTime = [_lastBeaconActionTimes objectForKey:key];
if ((lastBeaconActionTime == nil) || ([now timeIntervalSinceDate:lastBeaconActionTime] > MINIMUM_ACTION_INTERVAL_SECONDS)) {
[_lastBeaconActionTimes setObject:now forKey:key];
// Plays beep sound
AudioServicesPlaySystemSound(soundFileObject);
if (self.delegate) {
// Performs actions related to the beacon (i.e. delivers a coupon)
[self.delegate didFoundBeacon:self];
}
self.locationManager = nil;
}
// else [self.locationManager stopMonitoringForRegion:region];
}
[foundBeacons removeObjectAtIndex:0];
beacon = nil;
}
}
#end
Can't say for sure this is the reason why Bluetooth keeps toggling, but this part is definitely suspicious:
- (void)locationManager:(CLLocationManager *)manager didStartMonitoringForRegion:(CLRegion *)region {
[self.locationManager startMonitoringForRegion:beaconRegion];
[self.locationManager startRangingBeaconsInRegion:beaconRegion];
}
This is essentially an infinite loop. Once monitoring starts, iOS invokes the didStartMonitoring method … which starts monitoring for the very same region, which makes the iOS invoke the didStartMonitoring method again, which …
I'd start with removing the startMonitoringForRegion line from this part of your code.

iOS 8 gps not enabled

I tackled an issue, that GPS services work perfectly on iOS 7, but on iOS 8 I never get the permission request and the method:
- (void) locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations
never gets called.
My code is here:
#import "Locator.h"
#implementation Locator
- (instancetype) init {
if (self = [super init]) {
// Start up the location manager
self.locationManager = [[CLLocationManager alloc] init];
self.locationManager.delegate = self;
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
self.locationManager.distanceFilter = 3;
// New property for iOS6
if ([self.locationManager respondsToSelector:#selector(activityType)]) {
self.locationManager.activityType = CLActivityTypeFitness;
}
// New method for iOS8
if ([self.locationManager respondsToSelector:#selector(requestAlwaysAuthorization)]) {
[self.locationManager requestAlwaysAuthorization];
}
}
return self;
}
- (void) startMonitoring:(LocationChangeCallback)callback {
if ([CLLocationManager locationServicesEnabled] && [CLLocationManager significantLocationChangeMonitoringAvailable]) {
// Register an observer for if/when this app goes into background & comes back to foreground
// NOTE: THIS CODE IS iOS4.0+ ONLY.
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(switchToLowEnergyMode) name:UIApplicationDidEnterBackgroundNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(switchToAccurateMode) name:UIApplicationDidFinishLaunchingNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(switchToAccurateMode) name:UIApplicationWillEnterForegroundNotification object:nil];
UIApplicationState state = [[UIApplication sharedApplication] applicationState];
self.locationUpdateCallback = callback;
if (state == UIApplicationStateActive) {
[self switchToAccurateMode];
} else {
[self switchToLowEnergyMode];
}
}
}
- (void) switchToAccurateMode {
NSLog(#"Accurate");
[self.locationManager stopMonitoringSignificantLocationChanges];
// Find the current location
[self.locationManager startUpdatingLocation];
}
- (void) switchToLowEnergyMode {
NSLog(#"Low Energy");
[self.locationManager stopUpdatingLocation];
// Find the current location
[self.locationManager startMonitoringSignificantLocationChanges];
}
#pragma mark - CLLocationDelegate Methods
- (void) locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations {
// locations contains an array of recent locations, but this app only cares about the most recent
// which is also "manager.location"
if (self.locationUpdateCallback != nil) {
self.locationUpdateCallback(manager.location);
}
}
- (void) locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error {
NSLog(#"Location manager failed with error: %#", error);
if ([error.domain isEqualToString:kCLErrorDomain] && error.code == kCLErrorDenied) {
//user denied location services so stop updating manager
[manager stopUpdatingLocation];
}
}
#end
I also checked under location settings and there was nothing behind my application name. Other applications have ("Always", "Never" or "While Using").
For IOS 8 you have to add NSLocationAlwaysUsageDescription or NSLocationWhenInUseUsageDescription key to your plist. Otherwise it does not ask for permission.
add CLLocationManagerDelegate
#implementation Locator <CLLocationManagerDelegate>
- (instancetype) init {
//......
self.locationManager.requestAlwaysAuthorization();
}

Delegate methods not being called, can't see why

FIXED: I was creating my CLLocationManager in the viewDidLoad method, so it was being cleaned by ARC almost immediately. I changed my instance to be a class instance instead of method instance and the problem is solved.
I have a class, an NSObject, which I'm using to control the entering and exiting of beacon regions.
It's implementation is here:
#import "dcBeaconManager.h"
#implementation dcBeaconManager
-(id)init
{
self = [super init];
if (self != nil){}
return self;
}
bool testRanging = true;
bool firstRegionEntered = true;
- (void)initBeaconManager {
NSLog(#"initBeaconManager called");
self.locationManager = [[CLLocationManager alloc] init];
self.locationManager.delegate = self;
NSUUID *uuid = [[NSUUID alloc]initWithUUIDString:#"B9407F30-F5F8-466E-AFF9-25556B57FE6D"];
self.beaconRegion = [[CLBeaconRegion alloc] initWithProximityUUID:uuid identifier:#"digiConsRegion"];
[self.locationManager startMonitoringForRegion:self.beaconRegion];
}
- (void)stopBeaconManager {
[self.locationManager stopMonitoringForRegion:self.beaconRegion];
}
- (void)locationManager:(CLLocationManager *)manager didStartMonitoringForRegion:(CLRegion *)region {
NSLog(#"Started looking for regions");
[self.locationManager requestStateForRegion:self.beaconRegion];
}
- (void)locationManager:(CLLocationManager *)manager didEnterRegion:(CLRegion *)region {
NSLog(#"Region discovered");
if (firstRegionEntered) {
NSLog(#"First time in region");
firstRegionEntered = false;
}
[self.locationManager startRangingBeaconsInRegion:self.beaconRegion];
}
- (void)locationManager:(CLLocationManager *)manager didExitRegion:(CLRegion *)region {
NSLog(#"Region left");
[self.locationManager stopRangingBeaconsInRegion:self.beaconRegion];
UILocalNotification *notification = [[UILocalNotification alloc] init];
notification.alertBody = #"We hope you enjoyed the event, thank you for coming.";
notification.soundName = UILocalNotificationDefaultSoundName;
[[UIApplication sharedApplication] presentLocalNotificationNow:notification];
}
- (void)locationManager:(CLLocationManager *)manager didRangeBeacons:(NSArray *)beacons inRegion:(CLBeaconRegion *)region {
NSLog(#"locationManager initiated");
CLBeacon *beacon = [[CLBeacon alloc] init];
beacon = [beacons lastObject];
//Store some information about this beacon
NSNumber *currentBeaconMajor = beacon.major; //it's major (group) number
NSNumber *currentBeaconMinor = beacon.minor; //it's minor (individual) number
if (([currentBeaconMinor floatValue] == 59204) && ([currentBeaconMajor floatValue] == 33995) && (beacon.proximity == CLProximityNear)) {
NSLog(#"Mint discovered");
[[NSNotificationCenter defaultCenter] postNotificationName:#"didLocateMint" object:nil];
} else if (([currentBeaconMinor floatValue] == 7451) && ([currentBeaconMajor floatValue] == 63627) && (beacon.proximity == CLProximityNear)) {
NSLog(#"Blue discovered");
[[NSNotificationCenter defaultCenter] postNotificationName:#"didLocateBlue" object:nil];
} else if (([currentBeaconMinor floatValue] == 51657) && ([currentBeaconMajor floatValue] == 26976) && (beacon.proximity == CLProximityNear)) {
NSLog(#"Purple discovered");
[[NSNotificationCenter defaultCenter] postNotificationName:#"didLocatePurple" object:nil];
}
}
- (void)locationManager:(CLLocationManager *)manager didDetermineState:(CLRegionState)state forRegion:(CLRegion *)region {
if (testRanging) {
NSLog(#"Testing: forced ranging");
if ([region isEqual:self.beaconRegion] && state == CLRegionStateInside) {
[_locationManager startRangingBeaconsInRegion:(CLBeaconRegion *)region];
}
}
}
#end
Here's the header:
#import <Foundation/Foundation.h>
#import <CoreLocation/CoreLocation.h>
#import <CoreBluetooth/CoreBluetooth.h>
#interface dcBeaconManager : NSObject <CLLocationManagerDelegate>
//properties
#property (strong, nonatomic) CLBeaconRegion *beaconRegion; //used to define which beacons we are looking for
#property (strong, nonatomic) CLLocationManager *locationManager; //set up location services and allow beacons to be found
//methods
- (void)initBeaconManager;
- (void)stopBeaconManager;
#end
Now, this code has worked fine before when included in the main view controller, but I'm trying to get better at OOP in Obj-C. The logs show the object is created and the main initBeaconManager is called, but from there is just stops. I cannot figure out why. Any thoughts?
Cheers.
I'm not sure this help but can you replace this line:
self.beaconRegion = [[CLBeaconRegion alloc] initWithProximityUUID:uuid identifier:#"digiConsRegion"];
with that one:
self.beaconRegion = [[CLBeaconRegion alloc] initWithProximityUUID:uuid major:1 minor:2 identifier:#"digiConsRegion"];
self.beaconRegion.notifyOnEntry = entry;
self.beaconRegion.notifyOnExit = exit;
self.beaconRegion.notifyEntryStateOnDisplay = YES;
I believe you need to provide major and minor values for bacon region.
I was creating my CLLocationManager in my viewDidLoad method, and ARC was killing it off almost immediately. Moving it to be a class instance instead of a method instance fixed the problem.

iBeacon ranging and proximity is buggy

I'm working on a class to handle all my iBeacon testing. It's purpose is to start looking for regions, range the beacons, identify them then send notifications. The code is below.
The problem I'm having is the app is running very slowly, I know iBeacons have latency issues, and sometimes simply stops working (won't identify a close beacon). My code is messy I know, trying to sort the logic before I work on cleaning it. I'm wondering if I have missed a logic flaw here (and by that I mean, I wonder which logic flaws I've introduced!).
#import "dcBeaconManager.h"
#implementation dcBeaconManager
#synthesize currentBeaconState;
bool testRanging = false;
int firstRegionEntered = 0;
int beaconsRangedCount = 0;
- (void)initBeaconManager {
NSLog(#"initBeaconManager called");
self.locationManager = [[CLLocationManager alloc] init];
self.locationManager.delegate = self;
NSUUID *uuid = [[NSUUID alloc]initWithUUIDString:#"B9407F30-F5F8-466E-AFF9-25556B57FE6D"];
self.beaconRegion = [[CLBeaconRegion alloc] initWithProximityUUID:uuid identifier:#"digiConsRegion"];
[self.locationManager startMonitoringForRegion:self.beaconRegion];
[self.locationManager requestStateForRegion:self.beaconRegion];
currentBeaconState = #"initial";
}
- (void)locationManager:(CLLocationManager *)manager didStartMonitoringForRegion:(CLRegion *)region {
NSLog(#"Started looking for regions");
[self.locationManager requestStateForRegion:self.beaconRegion];
}
- (void)locationManager:(CLLocationManager *)manager didEnterRegion:(CLRegion *)region {
NSLog(#"Region discovered");
if (firstRegionEntered == 0) {
NSLog(#"First time in region");
UILocalNotification *notification = [[UILocalNotification alloc] init];
notification.alertBody = #"Welcome to Digial Conversations, we are upstairs.";
notification.soundName = UILocalNotificationDefaultSoundName;
[[UIApplication sharedApplication] presentLocalNotificationNow:notification];
firstRegionEntered = 1;
}
[self.locationManager startRangingBeaconsInRegion:self.beaconRegion];
}
- (void)locationManager:(CLLocationManager *)manager didExitRegion:(CLRegion *)region {
[self.locationManager stopRangingBeaconsInRegion:self.beaconRegion];
UILocalNotification *notification = [[UILocalNotification alloc] init];
notification.alertBody = #"We hope you enjoyed the event, thank you for coming.";
notification.soundName = UILocalNotificationDefaultSoundName;
[[UIApplication sharedApplication] presentLocalNotificationNow:notification];
}
- (void)locationManager:(CLLocationManager *)manager didRangeBeacons:(NSArray *)beacons inRegion:(CLBeaconRegion *)region {
CLBeacon *beacon = [[CLBeacon alloc] init];
beacon = [beacons lastObject];
NSNumber *currentBeaconMajor = beacon.major; //it's major (group) number
NSNumber *currentBeaconMinor = beacon.minor; //it's minor (individual) number
if (([currentBeaconMinor floatValue] == 59204) && ([currentBeaconMajor floatValue] == 33995) && (beacon.proximity == CLProximityNear)) {
if (beaconsRangedCount == 0) {
currentBeaconState = #"Mint";
beaconsRangedCount ++;
}
if ([currentBeaconState isEqualToString:#"Blue"] || [currentBeaconState isEqualToString:#"Purple"]) {
[[NSNotificationCenter defaultCenter] postNotificationName:#"didLocateMint" object:nil];
}
} else if (([currentBeaconMinor floatValue] == 7451) && ([currentBeaconMajor floatValue] == 63627) && (beacon.proximity == CLProximityNear)) {
if (beaconsRangedCount == 0) {
currentBeaconState = #"Blue";
beaconsRangedCount ++;
}
if ([currentBeaconState isEqualToString:#"Mint"] || [currentBeaconState isEqualToString:#"Purple"]) {
[[NSNotificationCenter defaultCenter] postNotificationName:#"didLocateBlue" object:nil];
}
} else if (([currentBeaconMinor floatValue] == 51657) && ([currentBeaconMajor floatValue] == 26976) && (beacon.proximity == CLProximityNear)) {
if (beaconsRangedCount == 0) {
currentBeaconState = #"Purple";
beaconsRangedCount ++;
}
if ([currentBeaconState isEqualToString:#"Mint"] || [currentBeaconState isEqualToString:#"Blue"]) {
[[NSNotificationCenter defaultCenter] postNotificationName:#"didLocatePurple" object:nil];
}
} else {
[[NSNotificationCenter defaultCenter] postNotificationName:#"didLeaveNearRegion" object:nil];
}
}
#end
Do you mean that didEnterRegion and didExitRegion callbacks are being delayed?
If your app is running in the foreground while you are ranging, you should get entered region notifications within a second, and exit region notifications within a few seconds. If your app is in the background, it can take up to 15 minutes to get either an in region or an out of region notification.
For details on this timing, see here.
These latency issues are not beacon-specific. They have to do with the way the CoreLocation API is implemented in iOS.

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