Creating Contextual App Experiences

Summit 2018

-Prabhanshu Attri

Agenda

Context? What's that?
Nearby Connections
Awareness API

Source: LiveMint

My Watchlist

Soap Opera: What Name Do I Give To This Love?

Notifications

Source: https://media.makeameme.org/created/what-if-i-dezgm5.jpg

URL

https://xprss.org/starwars

Nearby Connections

Nearby Connections is a peer-to-peer networking API that allows apps to easily discover, connect to, and exchange data with nearby devices in real-time, regardless of network connectivity.

Source: developers.google.com

Source: https://www.beaconsage.com/media/1742/nearby-notifications-android.jpg

Nearby Settings

Beacon Dashboard

Publish and Subscribe

Nearby.getMessagesClient(this).publish(new Message("Hello World".getBytes()));


MessageListener mMessageListener = new MessageListener() {
    @Override
    public void onFound(Message message) {
        Log.d(TAG, "Found message: " + new String(message.getContent()));
    }

    @Override
    public void onLost(Message message) {
        Log.d(TAG, "Lost sight of message: " + new String(message.getContent()));
    }
}


Nearby.getMessagesClient(this).subscribe(mMessageListener);

https://xprss.org/fossasia18wt

Awareness API

Contexts

Context type	Example
Time	Current local time
Location	Latitude and longitude
Place	Place, including place type
Activity	Detected user activity (walking, running, biking)
Beacons	Nearby beacons matching the specified namespace
Headphones	Are headphones plugged in?

Various Contexts

Ways to get Insight

Fetch API

Snapshot API

Fetch API

AwarenessFence walkingFence
    = DetectedActivityFence.during(DetectedActivityFence.WALKING);

AwarenessFence headphoneFence
    = HeadphoneFence.during(HeadphoneState.PLUGGED_IN);

AwarenessFence walkingWithHeadphones = AwarenessFence.and(
    walkingFence,
    headphoneFence
);

AwarenessFence areaAroundStore = LocationFence.in(
    STORE_LAT,
    STORE_LONG,
    1000,       /* radius in meters */
    0L          /* dwell time       */
);

AwarenessFence openHours = TimeFence.inDailyInterval(
    TimeZone.getDefault(),
    10 * HOURS_IN_MILLIS, /* 10AM */
    18 * HOURS_IN_MILLIS  /* 6PM  */
);

AwarenessFence walkingWithHeadphonesNearStore
    = AwarenessFence.and(
        walkingWithHeadphones,
        areaAroundStore,
        openHours
    );

// Update fence
FenceUpdateRequest fenceUpdateRequest
    = new FenceUpdateRequest.Builder()
        .addFence("walkingWithHeadphones", walkingWithHeadphones, mPendingIntent)
        .addFence("walkingWithHeadphonesNearStore", walkingWithHeadphonesNearStore, mPendingIntent)
        .build());

Awareness.FenceApi.updateFences(googleApiClient, fenceUpdateRequest);

PlaceResult placesResult =
    Awareness.SnapshotApi.getPlaces(googleApiClient).await();

WeatherResult weatherResult =
    Awareness.SnapshotApi.getWeather(googleApiClient).await();

Snapshot API

Thank you

@PrabhanshuAttri

prabhanshu.com

@PrabhanshuAttri