Android device can't scan beacon











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I'm working on a simple beacon proximity app using AltBeacon library from here https://altbeacon.github.io/android-beacon-library/samples.html.



I am experimenting with the sample code provided on the above website, however, each time I run the app it only goes to addRangingNotifier() method. If it detected the beacon it would go log the beacon size.



private Region defaultRegion = null;
defaultRegion = new Region("BeaconIdentifier", Identifier.fromUuid(java.util.UUID.fromString(UUID)), null, null);
beaconManager = BeaconManager.getInstanceForApplication(this);
beaconManager.getBeaconParsers().add(new BeaconParser().setBeaconLayout("m:2-3=0215,i:4-19,i:20-21,i:22-23,p:24-24"));
beaconManager.bind(this);

@Override
public void onBeaconServiceConnect() {
beaconManager.addRangeNotifier(new RangeNotifier() {
@Override
public void didRangeBeaconsInRegion(Collection<Beacon> beacons, Region region) {
if (beacons.size() > 0) {
Log.d("MainInfo","Beacon List Size " + beacons.size());
}else{
Log.d("MainInfo","Beacon Empty");
}
}
});
try {
beaconManager.startRangingBeaconsInRegion(defaultRegion);
} catch (RemoteException e) {}
}


I can receive the beacon size around of me.
I test the two device(A : Samsung galaxy J510-Marshmellow/B: Samsung galaxy J7-Nougat), B scan the beacon and print Beacon List Size, but, A can't scan the beacon and print Beacon Empty.



So I test same Marshmellow device, but I can't find it.



Are there any codes that should be added depending on the operating system?










share|improve this question
























  • Maybe worth checking that if the location permission is granted to the app on the phone?
    – Ricky Mo
    Nov 20 at 5:28










  • @RickyMo Of course that
    – Polaris Nation
    Nov 20 at 5:35










  • Did this solve the problem?
    – davidgyoung
    Nov 20 at 11:49










  • @davidgyoung yes. when I change dependencies { implementation 'org.altbeacon:android-beacon-library:2+' } to AAR file (in project structure and import aar file), it show the scan result. So now I can scan. Thank you for your answer
    – Polaris Nation
    Nov 21 at 8:35

















up vote
0
down vote

favorite












I'm working on a simple beacon proximity app using AltBeacon library from here https://altbeacon.github.io/android-beacon-library/samples.html.



I am experimenting with the sample code provided on the above website, however, each time I run the app it only goes to addRangingNotifier() method. If it detected the beacon it would go log the beacon size.



private Region defaultRegion = null;
defaultRegion = new Region("BeaconIdentifier", Identifier.fromUuid(java.util.UUID.fromString(UUID)), null, null);
beaconManager = BeaconManager.getInstanceForApplication(this);
beaconManager.getBeaconParsers().add(new BeaconParser().setBeaconLayout("m:2-3=0215,i:4-19,i:20-21,i:22-23,p:24-24"));
beaconManager.bind(this);

@Override
public void onBeaconServiceConnect() {
beaconManager.addRangeNotifier(new RangeNotifier() {
@Override
public void didRangeBeaconsInRegion(Collection<Beacon> beacons, Region region) {
if (beacons.size() > 0) {
Log.d("MainInfo","Beacon List Size " + beacons.size());
}else{
Log.d("MainInfo","Beacon Empty");
}
}
});
try {
beaconManager.startRangingBeaconsInRegion(defaultRegion);
} catch (RemoteException e) {}
}


I can receive the beacon size around of me.
I test the two device(A : Samsung galaxy J510-Marshmellow/B: Samsung galaxy J7-Nougat), B scan the beacon and print Beacon List Size, but, A can't scan the beacon and print Beacon Empty.



So I test same Marshmellow device, but I can't find it.



Are there any codes that should be added depending on the operating system?










share|improve this question
























  • Maybe worth checking that if the location permission is granted to the app on the phone?
    – Ricky Mo
    Nov 20 at 5:28










  • @RickyMo Of course that
    – Polaris Nation
    Nov 20 at 5:35










  • Did this solve the problem?
    – davidgyoung
    Nov 20 at 11:49










  • @davidgyoung yes. when I change dependencies { implementation 'org.altbeacon:android-beacon-library:2+' } to AAR file (in project structure and import aar file), it show the scan result. So now I can scan. Thank you for your answer
    – Polaris Nation
    Nov 21 at 8:35















up vote
0
down vote

favorite









up vote
0
down vote

favorite











I'm working on a simple beacon proximity app using AltBeacon library from here https://altbeacon.github.io/android-beacon-library/samples.html.



I am experimenting with the sample code provided on the above website, however, each time I run the app it only goes to addRangingNotifier() method. If it detected the beacon it would go log the beacon size.



private Region defaultRegion = null;
defaultRegion = new Region("BeaconIdentifier", Identifier.fromUuid(java.util.UUID.fromString(UUID)), null, null);
beaconManager = BeaconManager.getInstanceForApplication(this);
beaconManager.getBeaconParsers().add(new BeaconParser().setBeaconLayout("m:2-3=0215,i:4-19,i:20-21,i:22-23,p:24-24"));
beaconManager.bind(this);

@Override
public void onBeaconServiceConnect() {
beaconManager.addRangeNotifier(new RangeNotifier() {
@Override
public void didRangeBeaconsInRegion(Collection<Beacon> beacons, Region region) {
if (beacons.size() > 0) {
Log.d("MainInfo","Beacon List Size " + beacons.size());
}else{
Log.d("MainInfo","Beacon Empty");
}
}
});
try {
beaconManager.startRangingBeaconsInRegion(defaultRegion);
} catch (RemoteException e) {}
}


I can receive the beacon size around of me.
I test the two device(A : Samsung galaxy J510-Marshmellow/B: Samsung galaxy J7-Nougat), B scan the beacon and print Beacon List Size, but, A can't scan the beacon and print Beacon Empty.



So I test same Marshmellow device, but I can't find it.



Are there any codes that should be added depending on the operating system?










share|improve this question















I'm working on a simple beacon proximity app using AltBeacon library from here https://altbeacon.github.io/android-beacon-library/samples.html.



I am experimenting with the sample code provided on the above website, however, each time I run the app it only goes to addRangingNotifier() method. If it detected the beacon it would go log the beacon size.



private Region defaultRegion = null;
defaultRegion = new Region("BeaconIdentifier", Identifier.fromUuid(java.util.UUID.fromString(UUID)), null, null);
beaconManager = BeaconManager.getInstanceForApplication(this);
beaconManager.getBeaconParsers().add(new BeaconParser().setBeaconLayout("m:2-3=0215,i:4-19,i:20-21,i:22-23,p:24-24"));
beaconManager.bind(this);

@Override
public void onBeaconServiceConnect() {
beaconManager.addRangeNotifier(new RangeNotifier() {
@Override
public void didRangeBeaconsInRegion(Collection<Beacon> beacons, Region region) {
if (beacons.size() > 0) {
Log.d("MainInfo","Beacon List Size " + beacons.size());
}else{
Log.d("MainInfo","Beacon Empty");
}
}
});
try {
beaconManager.startRangingBeaconsInRegion(defaultRegion);
} catch (RemoteException e) {}
}


I can receive the beacon size around of me.
I test the two device(A : Samsung galaxy J510-Marshmellow/B: Samsung galaxy J7-Nougat), B scan the beacon and print Beacon List Size, but, A can't scan the beacon and print Beacon Empty.



So I test same Marshmellow device, but I can't find it.



Are there any codes that should be added depending on the operating system?







android beacon






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 20 at 5:36

























asked Nov 20 at 2:34









Polaris Nation

139117




139117












  • Maybe worth checking that if the location permission is granted to the app on the phone?
    – Ricky Mo
    Nov 20 at 5:28










  • @RickyMo Of course that
    – Polaris Nation
    Nov 20 at 5:35










  • Did this solve the problem?
    – davidgyoung
    Nov 20 at 11:49










  • @davidgyoung yes. when I change dependencies { implementation 'org.altbeacon:android-beacon-library:2+' } to AAR file (in project structure and import aar file), it show the scan result. So now I can scan. Thank you for your answer
    – Polaris Nation
    Nov 21 at 8:35




















  • Maybe worth checking that if the location permission is granted to the app on the phone?
    – Ricky Mo
    Nov 20 at 5:28










  • @RickyMo Of course that
    – Polaris Nation
    Nov 20 at 5:35










  • Did this solve the problem?
    – davidgyoung
    Nov 20 at 11:49










  • @davidgyoung yes. when I change dependencies { implementation 'org.altbeacon:android-beacon-library:2+' } to AAR file (in project structure and import aar file), it show the scan result. So now I can scan. Thank you for your answer
    – Polaris Nation
    Nov 21 at 8:35


















Maybe worth checking that if the location permission is granted to the app on the phone?
– Ricky Mo
Nov 20 at 5:28




Maybe worth checking that if the location permission is granted to the app on the phone?
– Ricky Mo
Nov 20 at 5:28












@RickyMo Of course that
– Polaris Nation
Nov 20 at 5:35




@RickyMo Of course that
– Polaris Nation
Nov 20 at 5:35












Did this solve the problem?
– davidgyoung
Nov 20 at 11:49




Did this solve the problem?
– davidgyoung
Nov 20 at 11:49












@davidgyoung yes. when I change dependencies { implementation 'org.altbeacon:android-beacon-library:2+' } to AAR file (in project structure and import aar file), it show the scan result. So now I can scan. Thank you for your answer
– Polaris Nation
Nov 21 at 8:35






@davidgyoung yes. when I change dependencies { implementation 'org.altbeacon:android-beacon-library:2+' } to AAR file (in project structure and import aar file), it show the scan result. So now I can scan. Thank you for your answer
– Polaris Nation
Nov 21 at 8:35














1 Answer
1






active

oldest

votes

















up vote
0
down vote













The most likely thing wrong is that the UUID specified does not match your beacon. Try replacing this code:



  Identifier.fromUuid(java.util.UUID.fromString(UUID))


With



  null


To match all beacons. If this fixes it, replace the UUID with the one you are out of the detected beacon.






share|improve this answer





















  • Ok I'll test it. but I suggest why B device can scan it, but A device can't scan it. If UUID is wrong, I guess B device also can't scan it.
    – Polaris Nation
    Nov 20 at 5:00










  • defaultRegion = new Region("BeaconIdentifier", null, null, null); but still can't scan..
    – Polaris Nation
    Nov 20 at 5:37










  • I test another C device (API 24, Marshmellow, galaxy J7 2016), but still can't
    – Polaris Nation
    Nov 20 at 5:38











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1 Answer
1






active

oldest

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1 Answer
1






active

oldest

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active

oldest

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active

oldest

votes








up vote
0
down vote













The most likely thing wrong is that the UUID specified does not match your beacon. Try replacing this code:



  Identifier.fromUuid(java.util.UUID.fromString(UUID))


With



  null


To match all beacons. If this fixes it, replace the UUID with the one you are out of the detected beacon.






share|improve this answer





















  • Ok I'll test it. but I suggest why B device can scan it, but A device can't scan it. If UUID is wrong, I guess B device also can't scan it.
    – Polaris Nation
    Nov 20 at 5:00










  • defaultRegion = new Region("BeaconIdentifier", null, null, null); but still can't scan..
    – Polaris Nation
    Nov 20 at 5:37










  • I test another C device (API 24, Marshmellow, galaxy J7 2016), but still can't
    – Polaris Nation
    Nov 20 at 5:38















up vote
0
down vote













The most likely thing wrong is that the UUID specified does not match your beacon. Try replacing this code:



  Identifier.fromUuid(java.util.UUID.fromString(UUID))


With



  null


To match all beacons. If this fixes it, replace the UUID with the one you are out of the detected beacon.






share|improve this answer





















  • Ok I'll test it. but I suggest why B device can scan it, but A device can't scan it. If UUID is wrong, I guess B device also can't scan it.
    – Polaris Nation
    Nov 20 at 5:00










  • defaultRegion = new Region("BeaconIdentifier", null, null, null); but still can't scan..
    – Polaris Nation
    Nov 20 at 5:37










  • I test another C device (API 24, Marshmellow, galaxy J7 2016), but still can't
    – Polaris Nation
    Nov 20 at 5:38













up vote
0
down vote










up vote
0
down vote









The most likely thing wrong is that the UUID specified does not match your beacon. Try replacing this code:



  Identifier.fromUuid(java.util.UUID.fromString(UUID))


With



  null


To match all beacons. If this fixes it, replace the UUID with the one you are out of the detected beacon.






share|improve this answer












The most likely thing wrong is that the UUID specified does not match your beacon. Try replacing this code:



  Identifier.fromUuid(java.util.UUID.fromString(UUID))


With



  null


To match all beacons. If this fixes it, replace the UUID with the one you are out of the detected beacon.







share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 20 at 3:39









davidgyoung

48.1k1075137




48.1k1075137












  • Ok I'll test it. but I suggest why B device can scan it, but A device can't scan it. If UUID is wrong, I guess B device also can't scan it.
    – Polaris Nation
    Nov 20 at 5:00










  • defaultRegion = new Region("BeaconIdentifier", null, null, null); but still can't scan..
    – Polaris Nation
    Nov 20 at 5:37










  • I test another C device (API 24, Marshmellow, galaxy J7 2016), but still can't
    – Polaris Nation
    Nov 20 at 5:38


















  • Ok I'll test it. but I suggest why B device can scan it, but A device can't scan it. If UUID is wrong, I guess B device also can't scan it.
    – Polaris Nation
    Nov 20 at 5:00










  • defaultRegion = new Region("BeaconIdentifier", null, null, null); but still can't scan..
    – Polaris Nation
    Nov 20 at 5:37










  • I test another C device (API 24, Marshmellow, galaxy J7 2016), but still can't
    – Polaris Nation
    Nov 20 at 5:38
















Ok I'll test it. but I suggest why B device can scan it, but A device can't scan it. If UUID is wrong, I guess B device also can't scan it.
– Polaris Nation
Nov 20 at 5:00




Ok I'll test it. but I suggest why B device can scan it, but A device can't scan it. If UUID is wrong, I guess B device also can't scan it.
– Polaris Nation
Nov 20 at 5:00












defaultRegion = new Region("BeaconIdentifier", null, null, null); but still can't scan..
– Polaris Nation
Nov 20 at 5:37




defaultRegion = new Region("BeaconIdentifier", null, null, null); but still can't scan..
– Polaris Nation
Nov 20 at 5:37












I test another C device (API 24, Marshmellow, galaxy J7 2016), but still can't
– Polaris Nation
Nov 20 at 5:38




I test another C device (API 24, Marshmellow, galaxy J7 2016), but still can't
– Polaris Nation
Nov 20 at 5:38


















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