Context: Nearby & Awareness

How to make your application understand the world around it and become more contextual using the Nearby and Awareness APIs.

Video: https://vimeo.com/216079560

Transcript

1. Context: Nearby & Awareness Brian Duff: Android Context Team @brianduff
2. Proprietary + Confidential Proprietary + Confidential Proprietary + Confidential Agenda History & Background Nearby.Messages Nearby.Notifications Awareness Coming soon...
3. Proprietary + Confidential Proprietary + Confidential Proprietary + Confidential History & Background
5. What Technology?
6. What Technology?
8. Big Cloud Hashmap for the win! “AE123” “AE123” =
9. A wild usecase appears!
10. Over to you... Nearby Messages API for Android & iOS
11. … and the cool things you build FIND SHARE PLAY
12. Proprietary + Confidential Proprietary + Confidential Proprietary + Confidential Let's (finally) write some code!
13. Publishing a message Nearby.Messages.publish(mClient, new Message(bytes));
14. Subscribing for messages MessageListener listener = new MessageListener() { void onFound(Message m) { byte[] bytes = m.getContent(); } }; Nearby.Messages.subscribe(mClient, listener);
15. Doing cool things with beacons Nearby.Messages: Google's recommended beacon scanning API Easy permissions Free scans Background wakeup
16. Subscribing for beacons in the background private void backgroundSubscribe() { SubscribeOptions options = new SubscribeOptions.Builder() .setStrategy(Strategy.BLE_ONLY) .build(); Nearby.Messages.subscribe(mClient, getPendingIntent(), options); } private PendingIntent getPendingIntent() { return PendingIntent.getBroadcast( this, 0, new Intent(this, BeaconMessageReceiver.class), PendingIntent.FLAG_UPDATE_CURRENT); }
17. Subscribing for beacons in the background private void backgroundSubscribe() { SubscribeOptions options = new SubscribeOptions.Builder() .setStrategy(Strategy.BLE_ONLY) .build(); Nearby.Messages.subscribe(mClient, getPendingIntent(), options); } private PendingIntent getPendingIntent() { return PendingIntent.getBroadcast( this, 0, new Intent(this, BeaconMessageReceiver.class), PendingIntent.FLAG_UPDATE_CURRENT); }
18. Receiving beacon messages @Override public void onReceive(Context context, Intent intent) { Nearby.Messages.handleIntent(intent, new MessageListener() { @Override public void onFound(Message message) { // do something with message.getBytes() } @Override public void onLost(Message message) { // Oh noes! My beacon is out of range. } }); }
19. Advanced beacon features MessageFilter lets you scan for: • PUBLIC namespaced attachments in other namespaces • Raw BLE beacon IDs Special beacon callbacks: • onDistanceChanged • onBleSignalChanged
20. Example: Scan for iBeacons MessageFilter messageFilter = new MessageFilter.Builder() .includeIBeaconIds(PROXIMITY_UUID, major, minor) .build(); SubscribeOptions options = new SubscribeOptions.Builder() .setStrategy(Strategy.BLE_ONLY) .setFilter(messageFilter) .build(); @Override public void onFound(Message message) { IBeaconId ibeacon = IBeaconId.from(message); }
21. Proprietary + Confidential Proprietary + Confidential Proprietary + Confidential Nearby Notifications
22. Notifications about nearby things
23. Notifications about nearby things Attach URLs, or app intents We'll send users to Play Store if app not installed Notifications can be targeted Notifications are a reward for "good behavior", not a guarantee
24. Example: App Attachment { "title": "Get the app!", "url": "intent://host/path#Intent;scheme=scheme;package=com.yourapp.ui;end;", "targeting":[{ "anyOfAppInstallStates": ["NOT_INSTALLED"], "startTimeOfDay": "9:00", "endTimeOfDay": "17:00" }] }
25. Proprietary + Confidential Proprietary + Confidential Proprietary + Confidential Awareness
27. Example context fence Play my "waiting for coffee" playlist when I'm standing still in my local coffee shop on a Saturday afternoon with my headphones on.
28. Example: Fencing the conditions AwarenessFence still = DetectedActivityFence.during(STILL); AwarenessFence inCoffeeShop = LocationFence.in( 37.421725, -122.096149, // lat / long 50, // radius in m TimeUnit.MINUTES.toMillis(5)); // dwell time AwarenessFence headphonesOn = HeadphoneFence.during(PLUGGED_IN);
29. Example: Putting it all together AwarenessFence readyForTunes = AwarenessFence.and( still, inCoffeeShop, headphonesOn); Awareness.FenceApi.updateFences(apiClient, new FenceUpdateRequest.Builder() .addFence(fenceKey, readyForTunes, pendingIntent) .build());
30. Coming soon...
31. Help! Let us know what you're building Let us know what works & doesn't work Let us know what you'd like to see in the future
32. Thank You! developers.google.com/nearby/ developers.google.com/awareness/ android-context@google.com twitter.com/brianduff