Android device can't scan beacon

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?

edited Nov 20 '18 at 5:36

asked Nov 20 '18 at 2:34

Polaris Nation

188218

Maybe worth checking that if the location permission is granted to the app on the phone?

– Ricky Mo
Nov 20 '18 at 5:28

@RickyMo Of course that

– Polaris Nation
Nov 20 '18 at 5:35

Did this solve the problem?

– davidgyoung
Nov 20 '18 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 '18 at 8:35

add a comment |

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

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) {}

}

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?

edited Nov 20 '18 at 5:36

asked Nov 20 '18 at 2:34

Polaris Nation

188218

Maybe worth checking that if the location permission is granted to the app on the phone?

– Ricky Mo
Nov 20 '18 at 5:28

@RickyMo Of course that

– Polaris Nation
Nov 20 '18 at 5:35

Did this solve the problem?

– davidgyoung
Nov 20 '18 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 '18 at 8:35

add a comment |

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

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) {}

}

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?

edited Nov 20 '18 at 5:36

asked Nov 20 '18 at 2:34

Polaris Nation

188218

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

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) {}

}

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

edited Nov 20 '18 at 5:36

asked Nov 20 '18 at 2:34

Polaris Nation

188218

edited Nov 20 '18 at 5:36

asked Nov 20 '18 at 2:34

Polaris Nation

188218

edited Nov 20 '18 at 5:36

asked Nov 20 '18 at 2:34

Polaris Nation

188218

asked Nov 20 '18 at 2:34

Polaris Nation

188218

asked Nov 20 '18 at 2:34

Polaris Nation

188218

Maybe worth checking that if the location permission is granted to the app on the phone?

– Ricky Mo
Nov 20 '18 at 5:28

@RickyMo Of course that

– Polaris Nation
Nov 20 '18 at 5:35

Did this solve the problem?

– davidgyoung
Nov 20 '18 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 '18 at 8:35

add a comment |

Maybe worth checking that if the location permission is granted to the app on the phone?

– Ricky Mo
Nov 20 '18 at 5:28

@RickyMo Of course that

– Polaris Nation
Nov 20 '18 at 5:35

Did this solve the problem?

– davidgyoung
Nov 20 '18 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 '18 at 8:35

Maybe worth checking that if the location permission is granted to the app on the phone?

– Ricky Mo
Nov 20 '18 at 5:28

@RickyMo Of course that

– Polaris Nation
Nov 20 '18 at 5:35

Did this solve the problem?

– davidgyoung
Nov 20 '18 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 '18 at 8:35

add a comment |

1 Answer
1

active

oldest

votes

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.

answered Nov 20 '18 at 3:39

davidgyoung

48.6k1076138

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 '18 at 5:00

defaultRegion = new Region("BeaconIdentifier", null, null, null); but still can't scan..

– Polaris Nation
Nov 20 '18 at 5:37

I test another C device (API 24, Marshmellow, galaxy J7 2016), but still can't

– Polaris Nation
Nov 20 '18 at 5:38

add a comment |

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

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.

answered Nov 20 '18 at 3:39

davidgyoung

48.6k1076138

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 '18 at 5:00

defaultRegion = new Region("BeaconIdentifier", null, null, null); but still can't scan..

– Polaris Nation
Nov 20 '18 at 5:37

I test another C device (API 24, Marshmellow, galaxy J7 2016), but still can't

– Polaris Nation
Nov 20 '18 at 5:38

add a comment |

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.

answered Nov 20 '18 at 3:39

davidgyoung

48.6k1076138

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 '18 at 5:00

defaultRegion = new Region("BeaconIdentifier", null, null, null); but still can't scan..

– Polaris Nation
Nov 20 '18 at 5:37

I test another C device (API 24, Marshmellow, galaxy J7 2016), but still can't

– Polaris Nation
Nov 20 '18 at 5:38

add a comment |

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.

answered Nov 20 '18 at 3:39

davidgyoung

48.6k1076138

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.

answered Nov 20 '18 at 3:39

davidgyoung

48.6k1076138

answered Nov 20 '18 at 3:39

davidgyoung

48.6k1076138

answered Nov 20 '18 at 3:39

davidgyoung

48.6k1076138

answered Nov 20 '18 at 3:39

davidgyoung

48.6k1076138

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 '18 at 5:00

defaultRegion = new Region("BeaconIdentifier", null, null, null); but still can't scan..

– Polaris Nation
Nov 20 '18 at 5:37

I test another C device (API 24, Marshmellow, galaxy J7 2016), but still can't

– Polaris Nation
Nov 20 '18 at 5:38

add a comment |

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 '18 at 5:00

defaultRegion = new Region("BeaconIdentifier", null, null, null); but still can't scan..

– Polaris Nation
Nov 20 '18 at 5:37

I test another C device (API 24, Marshmellow, galaxy J7 2016), but still can't

– Polaris Nation
Nov 20 '18 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 '18 at 5:00

defaultRegion = new Region("BeaconIdentifier", null, null, null); but still can't scan..

– Polaris Nation
Nov 20 '18 at 5:37

I test another C device (API 24, Marshmellow, galaxy J7 2016), but still can't

– Polaris Nation
Nov 20 '18 at 5:38

add a comment |

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