When was the last time you were truly lost? Thanks to the maps and location technology in our phones, a whole generation has now grown up in a world where getting lost is truly a thing of the past. Location technology goes far beyond maps in the palm of our hand, however. In this talk, we will explore how a ridesharing app works. How do we discover our destination?How do we find the closest driver? How do we display this information on a map? How do we find the best route?To answer these questions,we will be learning about a variety of location APIs, including Maps, Positioning, Geocoding and more.

1. How to build your own ride-share app
Richard Süselbeck
Amsterdam | April 2-3, 2019

11. How do they do that?

12. Richard Süselbeck
Principal Developer Evangelist
HERE Technologies
@sueselbeck @heredev
https://developer.here.com

15. 2018-08-29 12.52.24.jpg

16. 2018-08-29 12.52.24.jpg

18. 2018-08-29 12.52.24.jpg

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

22. "Where am I?"

23. "Where am I?"
Positioning API

24. 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();

25. 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();

26. 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();

27. 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();

28. "Where am I?"
40.728215,-73.958251

29. "Where am I?"
52.38326, 4.92032

30. We are currently at 52.38326, 4.92032. What does that mean?
Latitude & Longitude
Latitude Longitude
Equator
Prime Meridian
+60
-30
-90 (South)
+90 (North) 180
-120 (West)
+30 (East)

31. Where does the lat/long come from?

32. Where does the lat/long come from?
GPS

33. GNSS
Where does the lat/long come from?

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

35. "Where am I?"
40.728215, -73.958251

36. "Where am I?"
40.728215, -73.958251

37. Maps API
"Where am I?"

38. Making maps is hard

39. Making maps is hard

42. 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);

44. "Where am I?"

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

46. Geocoder API
"Where am I?"
Pickup: 72 Noble St, Brooklyn

47. Geocoder API
Gedempt Hamerkanaal,
1021 Amsterdam, Nederland52.38344, 4.92044
72 Noble St, Brooklyn,
NY 11222, USA
40.728215, -73.958251

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

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

50. 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());
}
});

51. "Where are the drivers?"
Pickup: 72 Noble St, Brooklyn

52. "Where are the drivers?"
Pickup: 72 Noble St, Brooklyn

53. "Where are the drivers?"
Pickup: 72 Noble St, Brooklyn
Positioning API

54. "Where am I going?"200 Central Park W
Pickup: 72 Noble St, Brooklyn

55. "Where am I going?"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

56. Geocoder
Autocomplete API
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
"Where am I going?"

57. 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

58. 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

59. 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

60. 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

61. {
"suggestions": [
{
"label": "United States, 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",
...
},
...
]
}

62. "Where am I going?"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

63. Places API
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
"Where am I going?"

64. 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
}
}
}

65. 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
}
}
}

66. "How long does it take?"
"How much does it cost?"
"What is the route?"
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

67. "How long does it take?"
"How much does it cost?"
"What is the route?"
Confirm ride
28 min - $24 - $29

68. Routing API
"How long does it take?"
"How much does it cost?"
"What is the route?"
Confirm ride
28 min - $24 - $29

69. CoreRouter router = new CoreRouter();
RoutePlan routePlan = new RoutePlan();
routePlan.addWaypoint(new RouteWaypoint(
new GeoCoordinate(40.728215,-73.958251)));
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());

70. CoreRouter router = new CoreRouter();
RoutePlan routePlan = new RoutePlan();
routePlan.addWaypoint(new RouteWaypoint(
new GeoCoordinate(40.728215,-73.958251)));
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());

71. CoreRouter router = new CoreRouter();
RoutePlan routePlan = new RoutePlan();
routePlan.addWaypoint(new RouteWaypoint(
new GeoCoordinate(40.728215,-73.958251)));
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());

72. CoreRouter router = new CoreRouter();
RoutePlan routePlan = new RoutePlan();
routePlan.addWaypoint(new RouteWaypoint(
new GeoCoordinate(40.728215,-73.958251)));
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());

73. private class RouteListener implements 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());
}
}

74. private class RouteListener implements 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());
}
}

75. private class RouteListener implements 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());
}
}

76. ...
"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.",
...

77. "Which drivers are nearby?"
Finding nearby drivers…

81. Isoline Routing API
"Which drivers are nearby?"
Finding nearby drivers…

82. Isoline Routing API
"Which drivers can reach
me in 10 minutes?"
Finding nearby drivers…

84. 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=600
&rangetype=time

85. 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=600
&rangetype=time

86. 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=600
&rangetype=time

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

88. $28.27
Thanks for riding with HERE, Richard!
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vulputate laoreet tempus. Sed varius felis sed lorem semper commodo.

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