Failing to monitor beacon regions with "altbeacon" libary android

Question

I am run callbacks for changes in the state of my region with the altbeacon libary. Sample code from here ("Starting an App in the Background" section). But after trying everything I can come up with, still no luck. What am I missing?

All im getting in my App is:

• RegionApp: App started up
• RegionApp: Got a didDetermineStateForRegion call, isInRegion: false

Details:

• Tried using the latest version of the libary org.altbeacon:android-beacon-library:2+ and an older one 'org.altbeacon:android-beacon-library:2.12.1'
• 3 Kontakt.io Beacons with IBeacon protocol. (firmware v4)
• Attempted different beaconLayout, im quite sure this one is right.
• Permissions are granted by going to app settings. Like this
• compileSdkVersion: 28

EDIT: With the ranging example code I can't see the beacons either. But with the Kontakt app I can. One of the beacons according to BeaconScope:

f7826da6-4fa2-4e98-8024-bc5b71e0893e
id2: 29737
id3: 24354
power: -77 dBm
distance: 0.9 meters
rssi -65dBm
average rssi: -76.5 dBm
packets: 78
packes/sec: 1.4
detection rate: 100%
stabilized: true (sometimes false)
sample period: 53.9 secs

Attempted on

• Nokia 6.1 / Android 9
• Samsung Note 9 / Android 9
• Huawei GRA-L09 / Android 6

Code:

App.java

public class App extends Application implements BootstrapNotifier {
    private static final String TAG = "RegionApp";
    private RegionBootstrap regionBootstrap;

    @Override
    public void onCreate() {
        super.onCreate();
        Log.d(TAG, "App started up");
        BeaconManager 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"));
        // Also tried this: m:2-3=0215,i:4-19,i:20-21,i:22-23,p:24-24,d:25-25;

        Region region = new Region("com.example.regionmonitor.boostrapRegion", null, null, null);
        // Also tried creating region with defining UUID, and changing uniqueId

        regionBootstrap = new RegionBootstrap(this, region);
    }

    @Override
    public void didDetermineStateForRegion(int arg0, Region arg1) {
        Boolean isInRegion = arg0 == 1;
        Log.d(TAG, "Got a didDetermineStateForRegion call, isInRegion: " + isInRegion.toString());
    }

    @Override
    public void didEnterRegion(Region arg0) {
        Log.d(TAG, "Got a didEnterRegion call");
    }

    @Override
    public void didExitRegion(Region arg0) {
        Log.d(TAG, "Got a didExitRegion call");
    }
}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest
    xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.regionmonitor"
    >

    <uses-permission android:name="android.permission.BLUETOOTH" />
    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />

    <application
        android:name="com.example.regionmonitor.App"
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:label="@string/app_name"
        android:theme="@style/AppTheme"
        >

        <!-- Note:  the singleInstance below is important to keep two copies of your activity from getting launched on automatic startup -->
        <activity
            android:launchMode="singleInstance"
            android:name="com.example.regionmonitor.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

    </application>

</manifest>

MainActivity.java Should be irrelevant but for the sake of sharing all code:

public class MainActivity extends AppCompatActivity {

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

Answer 1

The posted code works for Kontakt beacons (and IBeacons), but you need to be patient. If you wait long enough the callbacks are called as expected, but it might take a while.

If you are testing on Nokia (like me) you might want to read this.