找不到带有 altbeacon 库的信标

Ì 正在尝试与我的 android 应用程序中的信标连接。但我似乎无法找到我的信标。我正在使用 Ibeacons。我正在使用 AltBeacon 库。onBeaconServiceConnect 启动，didDetermineStateForRegion 紧随其后。但是 didEnterReion 永远不会被调用。这是我的代码：

public class ListScenarios extends AppCompatActivity implements BeaconConsumer, MonitorNotifier {

private static final String TAG = "ListScenarios";

private ListView listView;
public String persoonID;
public String adresID;

public Array beaconArray;
//private ArrayList<IBeacon> arrBeacons = new ArrayList<>();

private BeaconManager mBeaconManager;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.list_scenarios);

    // Setup beaconmanager
    mBeaconManager = BeaconManager.getInstanceForApplication(this.getApplicationContext());
    // Detect iBeacon
    mBeaconManager.getBeaconParsers().add(new BeaconParser()
            .setBeaconLayout("m:2-3=beac,i:4-19,i:20-21,i:22-23,p:24-24,d:25-25"));
    mBeaconManager.bind(this);



    //listview
    listView = (ListView) findViewById(R.id.list_scenario);

    //send request to load list
    getScenarios();
    getBeacons();



}


// MARK: - Bluetooth


@Override
public void onBeaconServiceConnect() {
    System.out.println("We are in onBeaconServiceConnect");
    // Set the two identifiers below to null to detect any beacon regardless of identifiers
    Identifier myBeaconNamespaceId = null;
    Identifier myBeaconInstanceId = null;
    Region region = new Region("my-beacon-region", myBeaconNamespaceId, myBeaconInstanceId, null);
    mBeaconManager.addMonitorNotifier(this);
    try {
        mBeaconManager.startMonitoringBeaconsInRegion(region);
    } catch (RemoteException e) {
        e.printStackTrace();
    }
}

public void didEnterRegion(Region region) {
    System.out.println("We are in didEnterRegion");
    Log.d(TAG, "I detected a beacon in the region with namespace id " + region.getId1() +
            " and instance id: " + region.getId2());
}

public void didExitRegion(Region region) {
    System.out.println("We are in didExitRegion");
}

public void didDetermineStateForRegion(int state, Region region) {
    System.out.println("We are in didDetermineStateForRegion");
}

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