Comment utiliser un appareil Android pour une balise par la bibliothèque android-beacon-library?

Question

BeaconParser beaconParser = new BeaconParser() 
    .setBeaconLayout("m:2-3=beac,i:4-19,i:20-21,i:22-23,p:24-24,d:25-25"); 
Beacon beacon = new Beacon.Builder() 
    .setId1("2f234454-cf6d-4a0f-adf2-f4911ba9ffa6") 
    .setId2("1") 
    .setId3("2") 
    .setManufacturer(0x0118) 
    .setTxPower(-59) 
    .setDataFields(Arrays.asList(new Long[]{0l})) 
    .build(); 
beaconTransmitter.startAdvertising(beacon, new AdvertiseCallback() { 

    @Override 
    public void onStartFailure(int errorCode) { 
     Log.e(TAG, "Advertisement start failed with code: " + errorCode); 
    } 

    @Override 
    public void onStartSuccess(AdvertiseSettings settingsInEffect) { 
     Log.i(TAG, "Advertisement start succeeded."); 
    } 
}); 

Exécutez ceci, Le journal "Début de la publication a réussi." est montré, est le succès. Mais, mBeaconManager.startMonitoringBeaconsInRegion (région); ne trouve pas le altBeacon.

Answer 1

Vous ne pouvez pas détecter une balise sur le même périphérique qui transmet les paquets. Ce n'est pas une limitation spécifique à la bibliothèque Beacon Android, c'est juste comment Bluetooth LE fonctionne. Il est courant que les systèmes de matériel radio soient conçus pour ne pas recevoir leurs propres transmissions.

Answer 2

Merci beaucoup pour votre réponse!

public class MainActivity extends Activity implements BeaconConsumer, RangeNotifier { 

    private BeaconManager mBeaconManager; 
public void onResume() { 
     super.onResume(); 
     mBeaconManager = BeaconManager.getInstanceForApplication(this.getApplicationContext()); 
     // Detect the main Eddystone-UID frame: 
     mBeaconManager.getBeaconParsers().add(new BeaconParser(). 
       setBeaconLayout(BeaconParser.ALTBEACON_LAYOUT)); 
     mBeaconManager.getBeaconParsers().add(new BeaconParser(). 
setBeaconLayout(BeaconParser.EDDYSTONE_UID_LAYOUT)); 
     // Detect the telemetry Eddystone-TLM frame: 
     mBeaconManager.getBeaconParsers().add(new BeaconParser(). 
       setBeaconLayout(BeaconParser.EDDYSTONE_TLM_LAYOUT)); 
     mBeaconManager.bind(this); 
} 

public void onBeaconServiceConnect() { 
     Log.d("youfu","onBeaconServiceConnect."); 
     Region region = new Region("all-beacons-region", null, null, null); 
     try { 
      mBeaconManager.startRangingBeaconsInRegion(region); 
     } catch (RemoteException e) { 
      e.printStackTrace(); 
     } 
     mBeaconManager.addRangeNotifier(this); 
    } 

@Override 
    public void didRangeBeaconsInRegion(Collection<Beacon> beacons, Region region) { 
     Log.d("youfu","didRangeBeaconsInRegion region=== "+region); 
     for (Beacon beacon: beacons) { 
      if (beacon.getServiceUuid() == 0xfeaa && beacon.getBeaconTypeCode() == 0x00) { 
       // This is a Eddystone-UID frame 
       Identifier namespaceId = beacon.getId1(); 
Identifier instanceId = beacon.getId2(); 
       Log.d("youfu", "I see a beacon transmitting namespace id: "+namespaceId+ 
         " and instance id: "+instanceId+ 
         " approximately "+beacon.getDistance()+" meters away."); 

       // Do we have telemetry data? 
       if (beacon.getExtraDataFields().size() > 0) { 
long telemetryVersion = beacon.getExtraDataFields().get(0); 
        long batteryMilliVolts = beacon.getExtraDataFields().get(1); 
        long pduCount = beacon.getExtraDataFields().get(3); 
        long uptime = beacon.getExtraDataFields().get(4); 
Log.d("youfu", "The above beacon is sending telemetry version "+telemetryVersion+ 
          ", has been up for : "+uptime+" seconds"+ 
          ", has a battery level of "+batteryMilliVolts+" mV"+ 
          ", and has transmitted "+pduCount+" advertisements."); 
} 
      } 
     } 
    } 

@Override 
    public void onPause() { 
     super.onPause(); 
     mBeaconManager.unbind(this); 
    } 
} 

The log like this: 
12-30 10:52:57.232 16674-16674/? D/youfu: onBeaconServiceConnect. 
12-30 10:52:58.483 16674-16870/? D/youfu: didRangeBeaconsInRegion region=== id1: null id2: null id3: null 
12-30 10:52:59.591 16674-16925/? D/youfu: didRangeBeaconsInRegion region=== id1: null id2: null id3: null 
12-30 10:53:00.699 16674-16945/? D/youfu: didRangeBeaconsInRegion region=== id1: null id2: null id3: null 
region is null, so please help me to check the code, Thanks.