What's the deal with Android maps?

What’s the deal with Android maps?11.19.2014 | Chuck Greb | @ecgreb

Mapzen is an open source mapping lab building and supporting open data and software to promote a healthy mapping ecosystem.

start where you are

Issues⇢ Look & feel

⇢ Performance

⇢ System level integration

⇢ Inter-app communication

Just make a mobile web app!

Cross-platform frameworks

Android Development 101(for mappers)

Anatomy of an application⇢ AndroidManifest

⬝ Package name

⬝ Components

⬝ Permissions

⬝ Minimum SDK

⇢ Activities

⇢ Fragments

⇢ Views

⇢ Resources

Android Development 101

Development Environment

Android Development 101

Google (2008) Community Google (2014)

Build System Ant Maven Gradle

IDE Eclipse IntelliJ IDEA Android Studio

Testing Android Testing Framework

Robolectric Espresso

Emulator Android Virtual Device (ARM)

Genymotion Android Virtual Device (x86)

Gradle⇢ Groovy (DSL)

⇢ Build, test, and publish apps

⇢ Manage distributed dependencies

Android Development 101

Android Studio⇢ Based on IntelliJ IDEA

⇢ Rich layout editor

⇢ Tight integration with Android SDK and Gradle

Android Development 101

Open Source Map Tools for Android

Rendering⇢ osmdroid

⇢ Mapbox

⇢ OpenScienceMap

Open Source Map Tools

Geolocation, search & routing⇢ LOST

⇢ Pelias

⇢ On the Road

Open Source Map Tools

osmdroidraster tiles

2008

osmdroid

Based on Google Maps API v1

osmdroid

Support for online and offline tile sources

osmdroid

Icons, tracking, and shapes

osmdroid

<org.osmdroid.views.MapView

android:id="@+id/map_view"

android:layout_width="match_parent"

android:layout_height="match_parent"

tilesource="Mapnik" />

osmdroid

MapView mapView = new MapView(this, 256);

this.setContentView(mapView);

OnlineTileSourceBase mapnikTileSource = new XYTileSource("Mapnik",

ResourceProxy.string.mapnik, 0, 18, 256, ".png", new String[] {

"http://a.tile.openstreetmap.org/",

"http://b.tile.openstreetmap.org/",

"http://c.tile.openstreetmap.org/" });

mapView.setTileSource(mapnikTileSource);

osmdroid

Mapboxraster tiles (vector coming soon?)

Fork of osmdroid

Mapbox

Easy integration with Mapbox tile server

Mapbox

<com.mapbox.mapboxsdk.views.MapView

android:id="@+id/map_view"

android:layout_width="match_parent"

android:layout_height="match_parent"

mapbox:mapid="Your Mapbox mapid" />

Mapbox

MapView mapView = new MapView(this, "Your Mapbox mapid");

this.setContentView(mapView);

Mapbox

OpenScienceMapvector tiles

Universität Bremen

OpenScienceMap

“OpenScienceMap provides free and open maps for Androidwith the fastest and 100% pure vector maps around.”

OpenScienceMap

<org.oscim.android.MapView

android:id="@+id/map_view"

android:layout_width="match_parent"

android:layout_height="match_parent" />

OpenScienceMap

public class MyActivity extends MapActivity {

@Override

public void onCreate(Bundle icicle) {

super.onCreate(icicle);

...

}

public Map getMap() {

return super.map();

}

}

OpenScienceMap

@Override

public void onCreate(Bundle icicle) {

super.onCreate(icicle);

UrlTileSource tileSource = new OSciMap4TileSource("http://vector.example.com/all");

VectorTileLayer baseLayer = map().setBaseMap(tileSource);

map().layers().add(new BuildingLayer(map(), baseLayer));

map().layers().add(new PoiLayer(map(), baseLayer));

map().layers().add(new LabelLayer(map(), baseLayer));

baseLayer.setRenderTheme(ThemeLoader.load(

AssetAdapter.g.openFileAsStream("styles/map.xml)")));

}

OpenScienceMap

Location Open Source Tracker (LOST)location services

Drop-in replacement for LocationClient(Google Play Services)

LOST

talks directly to LocationManager(AOSP)

LOST

Location Providers⇢ GPS

⇢ Wi-Fi

⇢ Cell network

⇢ Passive

LOST

Fused Location Provider

LOST

Optimizations⇢ Frequency

⇢ Accuracy

⇢ Battery life

LOST

Debugging features⇢ Mock locations

⇢ Replay GPX trace file

LOST

LocationClient locationClient = new LocationClient(context,

new LocationClient.ConnectionCallbacks() {

@Override public void onConnected(Bundle bundle) {

onLocationClientConnected();

}

@Override public void onDisconnected() {

onLocationClientDisconnected();

}

});

LOST

private void onLocationClientConnected() {

Location lastLocation = locationClient.getLastLocation();

if (lastLocation != null) {

// do stuff

}

LocationRequest locationRequest = LocationRequest.create();

locationRequest.setInterval(5000);

locationClient.requestLocationUpdates(locationRequest,

new LocationListener() {

@Override public void onLocationChanged(Location location) {

// do more stuff

}

});

}

LOST

Peliasmodular open source geocoder

distributed full-text geographic search engine

Pelias

Pelias

Datasources⇢ OSM

⇢ Geonames

⇢ Quattroshapes

Pelias

Pelias Android SDK

Pelias

Pelias.getPelias().suggest("Empire State", Callback<Result>);

Pelias.getPelias().search("Empire State Building", "x1,y1,x2,y2", Callback<Result>);

Pelias

{ "type": "FeatureCollection",

"features": [{

"type": "Feature",

"geometry": {

"type": "Point",

"coordinates": [ -73.98597, 40.74871 ]},

"properties": {

"text": "Empire State Building, New York County, New York",

"score": 1,

"type": "geoname",

"id": "5116597"

}

}, ...

}

Pelias

On the Roadrouting and navigation

On the Road

Features⇢ Navigation

⇢ Snap to route

⇢ Calculate distances

⇢ Reroute

On the Road

Router.getRouter().setEndpoint("http://osrm.example.com")

.setDriving()

.setLocation(new double[]{lat, lng})

.setLocation(new double[]{lat, lng})

.setCallback(new Callback() {

@Override

public void success(Route route) {

// do stuff

}

@Override

public void failure(int statusCode) {

// do stuff

}

}).fetch();

On the Road

Open by Mapzen

Pelias Android SDK On the Road LOSTOpenScienceMap

VTM Speakerbox

TTSLocationManagerOSRMPeliasVector Tile

Service OpenGL ES

start where you are

Exercise #1Hello Android!

Exercise #2Raster maps with osmdroid

Exercise #3Vector maps with OpenScienceMap

thanksgithub.com/mapzengithub.com/peliasgithub.com/ecgreb

11.19.2014 | Chuck Greb | @ecgreb