I'm using the AltBeacon library for detecting iBeacons in my Android app. The code I have works on the following devices:
- Xiaomi MI9 (Android 10.0)
- Motorola Moto G4 (Android 6.0.1)
- Huawei P Smart (Android 8.0)
- Samsung Galaxy S8 (Android 9.0)
However, the same code doesn't work for a OnePlus 6 (Android 10, OxygenOS 10.3.2). It doesn't detect any beacons in my app. I tried to detect the beacons using an other app (Locate), that works. The creator of the AltBeacon library told me that Locate uses the AltBeacon library, so the beacons are detectable. This means my code setup is wrong. Can you help me by finding out what is wrong with my setup?
I checked (e.g.) this answer, although it didn't fix my problem. I turned debugging on for the BeaconManager but nothing interesting came out of that (an example at the bottom of this question).
In the ViewModel I call the MyStateManager. It contains a List regionsInRange, which contains beacons that are in range. I left out some code because I think it is irrelevant. If you feel like I left out too much, I will add it.
public class MyStateManager implements BootstrapNotifier {
private static final MyStateManager instance = new MyStateManager();
private final MyBeaconHelper myBeaconHelper;
// ViewModel accessess this List to retrieve the beacons that are found.
public final List<Region> regionsInRange = new ArrayList<>();
private PresenceRegistrationStateManager() {
presenceRegistrationBeaconHelper = new PresenceRegistrationBeaconHelper(this);
updateScanningRegions();
}
@Override
public Context getApplicationContext() {
return MyApplication.getAppContext();
}
@Override
public void didEnterRegion(Region region) {
//Empty method
}
@Override
public void didExitRegion(Region region) {
//Empty method
}
@Override
public void didDetermineStateForRegion(int status, Region region) {
if (status == OUTSIDE) {
regionsInRange.remove(region);
} else {
if (!regionsInRange.contains(region)) {
regionsInRange.add(region);
}
}
updateState();
}
public static MyStateManager getInstance() {
return instance;
}
public void updateState() {
// Own implementation here
}
private void updateScanningRegions() {
// add all the regions here
}
}
In addition, this is the MyBeaconHelper:
public class MyBeaconHelper implements BeaconConsumer, Serializable {
private transient final RegionBootstrap regionBootstrap;
private List<Region> scanRegions = new ArrayList<>();
public MyBeaconHelper(BootstrapNotifier bootstrapNotifier) {
BeaconManager beaconManager = BeaconManager.getInstanceForApplication(getApplicationContext());
beaconManager.getBeaconParsers().clear();
beaconManager.getBeaconParsers().add(new BeaconParser().setBeaconLayout("m:2-3=0215,i:4-19,i:20-21,i:22-23,p:24-24"));
LogManager.setVerboseLoggingEnabled(true);
beaconManager.bind(this);
regionBootstrap = new RegionBootstrap(bootstrapNotifier, new ArrayList<>());
}
@Override
public void onBeaconServiceConnect() {
//Empty method
}
@Override
public Context getApplicationContext() {
return MyApplication.getAppContext();
}
@Override
public void unbindService(ServiceConnection serviceConnection) {
getApplicationContext().unbindService(serviceConnection);
}
@Override
public boolean bindService(Intent intent, ServiceConnection serviceConnection, int i) {
return getApplicationContext().bindService(intent, serviceConnection, i);
}
public void updateScanRegions(List<Region> newRegions) {
for (Region oldRegion : this.scanRegions) {
if (!newRegions.contains(oldRegion)) {
regionBootstrap.removeRegion(oldRegion);
}
}
for (Region newRegion : newRegions) {
if (!this.scanRegions.contains(newRegion)) {
regionBootstrap.addRegion(newRegion);
}
}
this.scanRegions = newRegions;
}
}
When I turned debugging on for the BeaconManager, it showed me this a lot of times:
2020-03-31 11:57:30.181 25259-25259/com.my.app D/CycledLeScanner: starting a new scan cycle
2020-03-31 11:57:30.181 25259-25259/com.my.app D/CycledLeScanner: We are already scanning and have been for 1134 millis
2020-03-31 11:57:30.181 25259-25259/com.my.app D/CycledLeScanner: Waiting to stop scan cycle for another 1100 milliseconds
2020-03-31 11:57:30.181 25259-25259/com.my.app D/CycledLeScanner: Scan started
2020-03-31 11:57:31.213 25259-25259/com.my.app D/CycledLeScanner: Waiting to stop scan cycle for another 69 milliseconds
2020-03-31 11:57:31.323 25259-25259/com.my.app D/CycledLeScanner: Done with scan cycle
It keeps printing these lines over and over again...
