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Moses Kim

Apr 20, 2017

10 min read

Setting Up Beacons in Android: No Beacon Manager App Required

Intro

Eddystone

Nearby

Physical Web

Registering Beacons

HTTP method:
POST
 
Request URL:
https://proximitybeacon.googleapis.com/v1beta1/beacons:register
 
Request body: {
	"advertisedId": {
    "type": "EDDYSTONE",
    "id": "Fr4Z98nSoW0hgAAAAAAAAg=="
  },
  "status": "ACTIVE",
  "placeId": "ChIJTxax6NoSkFQRWPvFXI1LypQ",
  "latLng": {
    "latitude": "47.6693771",
    "longitude": "-122.1966037"
  },
  "indoorLevel": {
    "name": "1"
  },
  "expectedStability": "STABLE",
  "description": "An example beacon.",
  "properties": {
    "position": "entryway"
  }
}

Attachments

Nearby Messages API

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    compile 'com.google.android.gms:play-services-nearby:9.0.0'
}
<application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <meta-data
            android:name="com.google.android.nearby.messages.API_KEY"
            android:value="YOUR_API_KEY" />
 
        <.../>
 
    </application>
private synchronized void buildGoogleApiClient(){
        if (mGoogleApiClient == null) {
            mGoogleApiClient = new GoogleApiClient.Builder(this)
                    .addApi(Nearby.MESSAGES_API, new MessagesOptions.Builder()
                        .setPermissions(NearbyPermissions.BLE).build())
                    .addConnectionCallbacks(this)
                    .enableAutoManage(this, this)
                    .build();
        }
    }
MessageListener mMessageListener = new MessageListener() {
        @Override
        public void onFound(Message message) {
            String messageAsString = new String(message.getContent());
            Log.d(TAG, "Found message: " + messageAsString);
            Log.d(TAG, "Message namespace: " + message.getNamespace());
            Log.d(TAG, "Message type: " + message.getType());
        }
 
        @Override
        public void onLost(Message message) {
            String messageAsString = new String(message.getContent());
            Log.d(TAG, "Lost sight of message: " + messageAsString);
        }
    };

Active mode subscription

MessageListener mMessageListener = new MessageListener() {
	@Override
	public void onFound(Message message) {
		String messageAsString = new String(message.getContent());
		Log.d(TAG, "Found message: " + messageAsString);
		Log.d(TAG, "Message namespace: " + message.getNamespace());
		Log.d(TAG, "Message type: " + message.getType());
	}
 
	@Override
	public void onLost(Message message) {
		String messageAsString = new String(message.getContent());
		Log.d(TAG, "Lost sight of message: " + messageAsString);
	}
};
 
SubscribeOptions options = new SubscribeOptions.Builder()
		.setStrategy(Strategy.BLE_ONLY)
		.build();
 
Nearby.Messages.subscribe(mGoogleApiClient, mMessageListener, options).setResultCallback(new ResultCallback<Status>() {
	@Override
	public void onResult(@NonNull Status status) {
		if (status.isSuccess()) {
			Log.i(TAG, "Subscribed successfully.");
		} else {
			Log.e(TAG, "Operation failed. Error: " +
					NearbyMessagesStatusCodes.getStatusCodeString(
							status.getStatusCode()));
		}
	}
});

Background subscription

private void subscribe() {
        SubscribeOptions options = new SubscribeOptions.Builder()
                .setStrategy(Strategy.BLE_ONLY)
                .build();
 
        Nearby.Messages.subscribe(mGoogleApiClient, getPendingIntent(), options)
                .setResultCallback(new ResultCallback<Status>() {
                    @Override
                    public void onResult(@NonNull Status status) {
                        if (status.isSuccess()) {
                            Log.i(TAG, "Subscribed successfully.");
                            startService(getBackgroundSubscribeServiceIntent());
                        } else {
                            Log.e(TAG, "Operation failed. Error: " +
                                    NearbyMessagesStatusCodes.getStatusCodeString(
                                            status.getStatusCode()));
                        }
                    }
                });
 
    }
 
    private PendingIntent getPendingIntent() {
        return PendingIntent.getService(this, 0,
                getBackgroundSubscribeServiceIntent(), PendingIntent.FLAG_UPDATE_CURRENT);
    }
 
    private Intent getBackgroundSubscribeServiceIntent() {
        return new Intent(this, BackgroundSubscribeIntentService.class);
    }
public class BackgroundSubscribeIntentService extends IntentService {
    private static final String TAG = "BackSubIntentService";
 
    public BackgroundSubscribeIntentService() {
        super("BackgroundSubscribeIntentService");
    }
 
    @Override
    protected void onHandleIntent(Intent intent) {
        if (intent != null) {
            Nearby.Messages.handleIntent(intent, new MessageListener() {
                @Override
                public void onFound(Message message) {
                    String messageAsString = new String(message.getContent());
                    Log.d(TAG, "Found message: " + messageAsString);
                }
 
                @Override
                public void onLost(Message message) {
                    String messageAsString = new String(message.getContent());
                    Log.d(TAG, "Lost sight of message: " + messageAsString);
                }
            });
        }
    }
}

Emulating Beacons

Demo

Android
Android App Development
Beacons
Eddystone
Mobile Development

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Moses Kim

Moses Kim

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Creative producer. Former UX writer and researcher.

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