How to Build Your Own Ridesharing App (droidcon NYC 2018)

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How to buildyour own ridesharing app droidcon NYC, August 27 & 28

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Where am I? Whichdrivers are nearby? Where am I going? How do I get there? How long does it take? What‘s around me?

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How do theydo that?

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Richard Süselbeck Principal DeveloperEvangelist HERE Technologies @sueselbeck https://developer.here.com

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Where to? Pickup: 72Noble St, Brooklyn Confirm ride

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"Where am I?"

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"Where am I?" PositioningAPI

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PositioningManager positioningManager =PositioningManager.getInstance(); positioningManager.start(PositioningManager.LocationMethod.GPS_NETWORK); GeoCoordinate coordinate = positioningManager.getPosition().getGeocoordinate(); String locationString = coordinate.getLatitude() + "," + coordinate.getLongitude(); Toast.makeText(getApplicationContext(), locationString, Toast.LENGTH_SHORT).show();

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"Where am I?" 40.728215,-73.958251

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We are currentlyat 40.728215, -73.958251. What does that mean? Latitude & Longitude Latitude Longitude Equator Prime Meridian +60 -30 -90 (South) +90 (North) 180 -120 (West) +30 (East)

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Where does thelat/long come from?

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Where does thelat/long come from? GPS

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GNSS Where does thelat/long come from?

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GPS, GLONASS, GALILEO,BeiDou, NAVIC, QZSS Where does the lat/long come from? GNSS

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Where does thelat/long come from? Radio signals, e.g. cell towers, wi-fi, bluetooth

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"Where am I?" 40.728215,-73.958251

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"Where am I?" 40.728215,-73.958251

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Maps API "Where amI?"

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Making maps ishard

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Making maps ishard

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m_map.setCenter(new GeoCoordinate(40.75051,-73.99335), Map.Animation.NONE); m_map.setMapScheme(Map.Scheme.HYBRID_NIGHT_TRANSIT); m_map.setLandmarksVisible(true); m_map.setZoomLevel(17); m_map.setTilt(45);

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"Where am I?"

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"Where am I?" Pickup:72 Noble St, Brooklyn

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Geocoder API "Where amI?" Pickup: 72 Noble St, Brooklyn

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Geocoder API Invalidenstraße 116 10245Berlin52.530861, 13.38474 72 Noble St, Brooklyn, NY 11222, USA 40.728215, -73.958251

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GeoCoordinate pickup =new GeoCoordinate(40.728215,-73.958251); ReverseGeocodeRequest2 revGecodeRequest = new ReverseGeocodeRequest2(pickup); revGecodeRequest.execute(new ResultListener<Location>() { @Override public void onCompleted(Location location, ErrorCode errorCode) { updateTextView(location.getAddress().toString()); } });

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"Where are thedrivers?" Pickup: 72 Noble St, Brooklyn

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"Where are thedrivers?" Pickup: 72 Noble St, Brooklyn

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"Where are thedrivers?" Pickup: 72 Noble St, Brooklyn Positioning API

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"Where am Igoing?"200 Central Park W Pickup: 72 Noble St, Brooklyn

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"Where am Igoing?"200 Central Park W Pickup: 72 Noble St, Brooklyn 200 Central Park W, New York 200 Central Park S, New York 200 Central Park N, New York 200 Central Ave, Brooklyn

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Geocoder Autocomplete API 200 CentralPark W Pickup: 72 Noble St, Brooklyn 200 Central Park W, New York 200 Central Park S, New York 200 Central Park N, New York 200 Central Ave, Brooklyn "Where am I going?"

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http://autocomplete.geocoder.api.here.com/6.2/suggest.json ?app_id=MY_APP_ID &app_code=MY_APP_CODE &query=200+central+park &prox=40.76863,-73.97626,3000

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{ "suggestions": [ { "label": "UnitedStates, NY, New York, 200 Central Park W", "language": "en", "countryCode": "USA", "locationId": "NT_srx4m-dHrwiUBDnXi3NAwD_yADM", "address": { "country": "United States", "state": "NY", "county": "New York", "city": "New York", "district": "Upper West Side", "street": "Central Park W", "houseNumber": "200", "postalCode": "10024" }, "matchLevel": "houseNumber" }, { "label": "United States, NY, New York, 200 Central Park S", ... }, ... ] }

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"Where am Igoing?"american museum of Pickup: 72 Noble St, Brooklyn American Museum of Natural History American Museum of the Moving Image Museum of the American Gangster Museum of Chinese in the Americas

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Places API american museumof Pickup: 72 Noble St, Brooklyn American Museum of Natural History American Museum of the Moving Image Museum of the American Gangster Museum of Chinese in the Americas "Where am I going?"

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DiscoveryRequest request =new SearchRequest("american museum of"); GeoCoordinate manhattan = new GeoCoordinate(40.71451, -74.00602); request.setSearchCenter(manhattan); request.setCollectionSize(5); request.execute(new SearchRequestListener()); class SearchRequestListener implements ResultListener<DiscoveryResultPage> { @Override public void onCompleted(DiscoveryResultPage data, ErrorCode error) { List<DiscoveryResult> items = data.getItems(); for (DiscoveryResult item : items) { PlaceLink placeLink = (PlaceLink) item; // display information } } }

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"How long doesit take?" "How much does it cost?" american museum of Pickup: 72 Noble St, Brooklyn American Museum of Natural History American Museum of the Moving Image Museum of the American Gangster Museum of Chinese in the Americas

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"How long doesit take?" "How much does it cost?" Confirm ride 28 min - $24 - $29

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Routing API "How longdoes it take?" "How much does it cost?" Confirm ride 28 min - $24 - $29

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CoreRouter router =new CoreRouter(); RoutePlan routePlan = new RoutePlan(); routePlan.addWaypoint(new RouteWaypoint( new GeoCoordinate(49.1966286, -123.0053635))); routePlan.addWaypoint(new RouteWaypoint( new GeoCoordinate(49.1947289, -123.1762924))); RouteOptions routeOptions = new RouteOptions(); routeOptions.setTransportMode(RouteOptions.TransportMode.CAR); routeOptions.setRouteType(RouteOptions.Type.FASTEST); routePlan.setRouteOptions(routeOptions); router.calculateRoute(routePlan, new RouteListener());

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private class RouteListenerimplements CoreRouter.Listener { public void onProgress(int percentage) { // Display a message indicating calculation progress } public void onCalculateRouteFinished(List<RouteResult> routeResult, RoutingError error) { mapRoute = new MapRoute(routeResult.get(0).getRoute()); map.addMapObject(mapRoute); updateTextView(routeResult.get(0).getRoute().getLength()); } }

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... "length": 9919, "travelTime": 1664, "maneuver":[ { "position": { "latitude": 40.728361, “longitude": -73.9582743 }, "instruction": "Head toward West St on Noble St. Go for 79 m.", "travelTime": 15, "length": 79, "id": "M1", "_type": "PrivateTransportManeuverType" }, { "position": { "latitude": 40.7282925, "longitude": -73.9590061 }, "instruction": "Turn right onto West St. Go for 239 m.", ...

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"Which drivers arenearby?" Finding nearby drivers…

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Isoline Routing API "Whichdrivers are nearby?" Finding nearby drivers…

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https://isoline.route.api.here.com/routing/7.2/calculateisoline.json ?app_id={YOUR_APP_ID} &app_code={YOUR_APP_CODE} &mode=fastest;car;traffic:enabled &destination=40.728215,-73.958251 &range=6000 &rangetype=time

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Routing API Positioning API "Whereis my driver?" "When does she arrive?" Where to? Your driver will arrive in 4 mins Confirm ride

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Your driver willarrive in 3 minutes!

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$28.27 Thanks for ridingwith HERE, Richard! Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec ac mi a sem viverra lobortis. Donec at massa vel nibh lobortis laoreet. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Praesent finibus facilisis nisi, id consectetur eros scelerisque non. Suspendisse ut ligula interdum, dictum velit vel, interdum erat. Sed vulputate laoreet tempus. Sed varius felis sed lorem semper commodo.

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https://image.maps.api.here.com/mia/1.6/route ?app_id={{app_id}} &app_code={{app_code}} &h=200 &w=500 &r0=52.5338,13.2966,52.5383,13.3253 &lc0=00ff00 &lw0=6

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Thank you forriding with Richard! Give a compliment? @sueselbeck https://developer.here.com/

How to Build Your Own Ridesharing App (droidcon NYC 2018)

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How to Build Your Own Ridesharing App (droidcon NYC 2018)