在 android altBeacon didRangeBeaconsInRegion 中，信标大小始终显示为 0有什么问题？

问题描述

当我使用其他商业信标扫描仪时，信标被正常捕获，但是当我使用我制作的这个源代码时，它们根本没有被捕获。

确认“didRangeBeaconsInRegion”函数继续工作，但信标数一直返回0，请检查问题所在。

public class MainActivity extends AppCompatActivity implements BeaconConsumer {

TextView textView;

private BeaconManager beaconManager;

String beaconUUID="00000000000000000000000000000054"; // beacon -uuid
private static final int PERMISSION_REQUEST_COARSE_LOCATION = 1;

private String TAG = "CHS_BEA";

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

    textView=findViewById(R.id.tv_message);


    beaconManager = BeaconManager.getInstanceForApplication(this);
    beaconManager.getBeaconParsers().add(new BeaconParser().setBeaconLayout(BeaconParser.EDDYSTONE_UID_LAYOUT));
    beaconManager.getBeaconParsers().add(new BeaconParser().setBeaconLayout(BeaconParser.EDDYSTONE_TLM_LAYOUT));
    beaconManager.getBeaconParsers().add(new BeaconParser().setBeaconLayout(BeaconParser.EDDYSTONE_URL_LAYOUT));
    beaconManager.getBeaconParsers().add(new BeaconParser().setBeaconLayout("m:2-3=beac,i:4-19,i:20-21,i:22-23,p:24-24,d:25-25\""));
    beaconManager.getBeaconParsers().add(new BeaconParser().setBeaconLayout("m:0-3=4c000215,p:24-24"));
    //beaconManager.setBackgroundMode(true);
    beaconManager.bind(this);

}// onCreate()..

@Override
public void onBeaconServiceConnect() {

    beaconManager.removeAllMonitorNotifiers();
    Log.i(TAG,"onBeaconServiceConnect Start");
    beaconManager.addRangeNotifier(new RangeNotifier() {

        @Override
        public void didRangeBeaconsInRegion(Collection<Beacon> beacons,Region region) {
            Log.i(TAG,"didRangeBeaconsInRegion Start -> " + region.toString());
            Log.i(TAG,"didRangeBeaconsInRegion beacons -> " + beacons.size());

        }
    });

   beaconManager.addMonitorNotifier(new MonitorNotifier() {
        @Override
        public void didEnterRegion(Region region) {
            Log.i(TAG,"I just saw an beacon for the first time!");
            Toast.makeText(MainActivity.this,"didEnterRegion - 비콘 연결됨",Toast.LENGTH_SHORT).show();
            textView.setText("Beacon connected");

        }

        @Override
        public void didExitRegion(Region region) {
            Log.i(TAG,"I no longer see an beacon");
            Toast.makeText(MainActivity.this,"didExitRegion - 비콘 연결 끊김",Toast.LENGTH_SHORT).show();
            textView.setText("Beacon disconnected");
        }

        @Override
        public void didDetermineStateForRegion(int state,"I have just switched from seeing/not seeing beacons: "+state);
        }

    });


    try {
        beaconManager.startMonitoringBeaconsInRegion(new Region("beacon",null,null));
    } catch (remoteexception e) {    }


   try
    {
        beaconManager.startRangingBeaconsInRegion(new Region("beacon",null));
    }
    catch (remoteexception e)
    {
    }
}// onBeaconServiceConnect()..


@Override
public void onDestroy() {
    super.onDestroy();
    beaconManager.unbind(this);
}


@Override
public void onPointerCaptureChanged(boolean hasCapture) {
}

}// MainActivity 类..``

解决方法

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