locationManager:didEnterRegion not called when a beacon is detected

Check if your methods are implemented in the following way.In viewDidLoad, start moniotoring at the end

self.beaconRegion.notifyOnEntry=YES;self.beaconRegion.notifyOnExit=YES;self.beaconRegion.notifyEntryStateOnDisplay=YES;[self.locationManager startMonitoringForRegion:self.beaconRegion];

after monitoring start, request state for your defined region

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

after state is determined, start ranging beacons

-(void)locationManager:(CLLocationManager *)manager didDetermineState:(CLRegionState)state forRegion:(CLRegion *)region{    if (state == CLRegionStateInside)    {        //Start Ranging        [manager startRangingBeaconsInRegion:self.beaconRegion];    }    else    {        //Stop Ranging here    }}

and implement the following methods according to your needs...

- (void)locationManager:(CLLocationManager *)manager didEnterRegion:(CLRegion *)region{    self.statusLbl.text=@"Entered region";}-(void)locationManager:(CLLocationManager *)manager didExitRegion:(CLRegion *)region{    self.statusLbl.text=@"Exited region";}-(void)locationManager:(CLLocationManager *)manager didRangeBeacons:(NSArray *)beacons inRegion:(CLBeaconRegion *)region{    if(beacons.count>0)    {}}

Hope this will solve your problem.

before starting coding in project , you must follow given setup guidlines -->1. in project info or info.plist -->         Custom IOS Target Properties -->                    . add "Required background modes"                    . in this add two items -->                                ."App shares data using CoreBluetooth"                                ."App registers for location updates"2. in project Capability -->         There is Background Modes                     . check "Loaction update"                     . check "Acts as a Bluetooth LE accessory"                   . check "uses bluetooth LE accessories"

(and do follow the instructions given by Mr. Davidgyoung. believe me, it will definitely work.)

You also need to be aware that you are monitoring a region - not a particular beacons.

So if you have 3 beacons which share the same proximityUUID and your region is defined as only proximityUUID (without major and minor values) you will get notified only in two situations:

1. No beacons from the region were in range and first beacon/beacons getsdiscovered (didEnterRegion:)

2. One or more beacons from the region were in range and they all went out of sight for~30 seconds (didExitRegion:)