initial additions

MapboxAndroidDemo/src/main/AndroidManifest.xml

@@ -300,6 +300,13 @@
                 android:name="android.support.PARENT_ACTIVITY"
                 android:value="com.mapbox.mapboxandroiddemo.MainActivity" />
         </activity>
+        <activity
+            android:name=".examples.javaservices.IsochoneActivity"
+            android:label="@string/activity_java_services_isochrone_title">
+            <meta-data
+                android:name="android.support.PARENT_ACTIVITY"
+                android:value="com.mapbox.mapboxandroiddemo.MainActivity" />
+        </activity>
         <activity
             android:name=".examples.styles.ShowHideLayersActivity"
             android:label="@string/activity_styles_show_hide_layer_title">

MapboxAndroidDemo/src/main/java/com/mapbox/mapboxandroiddemo/MainActivity.java

@@ -63,6 +63,7 @@
 import com.mapbox.mapboxandroiddemo.examples.extrusions.RotationExtrusionActivity;
 import com.mapbox.mapboxandroiddemo.examples.javaservices.DirectionsActivity;
 import com.mapbox.mapboxandroiddemo.examples.javaservices.GeocodingActivity;
+import com.mapbox.mapboxandroiddemo.examples.javaservices.IsochoneActivity;
 import com.mapbox.mapboxandroiddemo.examples.javaservices.MapMatchingActivity;
 import com.mapbox.mapboxandroiddemo.examples.javaservices.MatrixApiActivity;
 import com.mapbox.mapboxandroiddemo.examples.javaservices.OptimizationActivity;
@@ -857,6 +858,14 @@ private void initializeModels() {
       null,
       R.string.activity_java_services_geocoding_url, false, BuildConfig.MIN_SDK_VERSION));
 
+    exampleItemModels.add(new ExampleItemModel(
+      R.id.nav_java_services,
+      R.string.activity_java_services_isochrone_title,
+      R.string.activity_java_services_isochrone_description,
+      new Intent(MainActivity.this, IsochoneActivity.class),
+      null,
+      R.string.activity_java_services_isochrone_url, false, BuildConfig.MIN_SDK_VERSION));
+
     exampleItemModels.add(new ExampleItemModel(
       R.id.nav_snapshot_image_generator,
       R.string.activity_image_generator_snapshot_notification_title,

MapboxAndroidDemo/src/main/java/com/mapbox/mapboxandroiddemo/examples/javaservices/IsochoneActivity.java

@@ -0,0 +1,141 @@
+package com.mapbox.mapboxandroiddemo.examples.javaservices;
+
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.util.Log;
+
+import com.mapbox.mapboxandroiddemo.R;
+import com.mapbox.mapboxsdk.Mapbox;
+import com.mapbox.mapboxsdk.maps.MapView;
+import com.mapbox.mapboxsdk.maps.MapboxMap;
+import com.mapbox.mapboxsdk.maps.OnMapReadyCallback;
+import com.mapbox.mapboxsdk.style.layers.FillLayer;
+import com.mapbox.mapboxsdk.style.layers.LineLayer;
+import com.mapbox.mapboxsdk.style.sources.GeoJsonSource;
+
+import java.net.URL;
+
+import static com.mapbox.mapboxsdk.style.expressions.Expression.eq;
+import static com.mapbox.mapboxsdk.style.expressions.Expression.geometryType;
+import static com.mapbox.mapboxsdk.style.expressions.Expression.get;
+import static com.mapbox.mapboxsdk.style.expressions.Expression.literal;
+import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.fillColor;
+import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.fillOpacity;
+import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.lineColor;
+import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.lineOpacity;
+import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.lineWidth;
+
+/**
+ * See how far a car can travel in certain time periods by requesting information from the Mapbox
+ * Isochrone API (https://www.mapbox.com/api-documentation/#isochrone)
+ */
+public class IsochoneActivity extends AppCompatActivity {
+
+  private MapView mapView;
+  private MapboxMap mapboxMap;
+  private static final String GEOJSON_SOURCE_ID = "GEOJSON_SOURCE_ID";
+
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+
+    // Mapbox access token is configured here. This needs to be called either in your application
+    // object or in the same activity which contains the mapview.
+    Mapbox.getInstance(this, getString(R.string.access_token));
+
+    // This contains the MapView in XML and needs to be called after the access token is configured.
+    setContentView(R.layout.activity_isochrone);
+
+    mapView = findViewById(R.id.mapView);
+    mapView.onCreate(savedInstanceState);
+    mapView.getMapAsync(new OnMapReadyCallback() {
+      @Override
+      public void onMapReady(MapboxMap mapboxMap) {
+        IsochoneActivity.this.mapboxMap = mapboxMap;
+        initIsochroneGeoJsonSource();
+        initFillLayer();
+        initLineLayer();
+      }
+    });
+  }
+
+  private void initIsochroneGeoJsonSource() {
+    try {
+      // Retrieve GeoJSON information from the Mapbox Isochrone API
+      GeoJsonSource source = new GeoJsonSource(GEOJSON_SOURCE_ID, new URL("https://api.mapbox.com/isochrone/v1/"
+        + "mapbox/driving/" + "-122.43817518306757,37.762834146042294?access_token="
+        + getString(R.string.access_token) + "&polygons=false&" + "contours_minutes=5,10,15&contours_colors"
+        + "=6706ce,04e813,4286f4"));
+
+      // Add the GeoJsonSource to map
+      mapboxMap.addSource(source);
+
+    } catch (Throwable throwable) {
+      Log.e("IsochoneActivity", "Couldn't add GeoJsonSource to map", throwable);
+    }
+  }
+
+  private void initFillLayer() {
+    // Create and style a FillLayer based on information in the Isochrone API response
+    FillLayer isochoneFillLayer = new FillLayer("polygon", GEOJSON_SOURCE_ID);
+    isochoneFillLayer.setProperties(
+      fillColor(get("color")),
+      fillOpacity(get("fillOpacity")));
+    isochoneFillLayer.setFilter(eq(geometryType(), literal("Polygon")));
+    isochoneFillLayer.setFilter(eq(literal("$type"), literal("Polygon")));
+    mapboxMap.addLayer(isochoneFillLayer);
+  }
+
+  private void initLineLayer() {
+    // Create and style a LineLayer based on information in the Isochrone API response
+    LineLayer isochoneLineLayer = new LineLayer("points", GEOJSON_SOURCE_ID);
+    isochoneLineLayer.setProperties(
+      lineColor(get("color")),
+      lineWidth(5f),
+      lineOpacity(get("opacity")));
+    isochoneLineLayer.setFilter(eq(literal("$type"), literal("LineString")));
+    mapboxMap.addLayer(isochoneLineLayer);
+  }
+
+  @Override
+  protected void onStart() {
+    super.onStart();
+    mapView.onStart();
+  }
+
+  @Override
+  public void onResume() {
+    super.onResume();
+    mapView.onResume();
+  }
+
+  @Override
+  public void onPause() {
+    super.onPause();
+    mapView.onPause();
+  }
+
+  @Override
+  public void onLowMemory() {
+    super.onLowMemory();
+    mapView.onLowMemory();
+  }
+
+  @Override
+  protected void onStop() {
+    super.onStop();
+    mapView.onStop();
+  }
+
+  @Override
+  protected void onDestroy() {
+    super.onDestroy();
+    mapView.onDestroy();
+  }
+
+  @Override
+  protected void onSaveInstanceState(Bundle outState) {
+    super.onSaveInstanceState(outState);
+    mapView.onSaveInstanceState(outState);
+  }
+}

MapboxAndroidDemo/src/main/res/layout/activity_isochrone.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:mapbox="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".examples.javaservices.IsochoneActivity">
+
+    <com.mapbox.mapboxsdk.maps.MapView
+        android:id="@+id/mapView"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        mapbox:mapbox_cameraTargetLat="37.7749"
+        mapbox:mapbox_cameraTargetLng="-122.4194"
+        mapbox:mapbox_cameraZoom="11"
+        mapbox:mapbox_styleUrl="@string/mapbox_style_light" />
+
+</FrameLayout>

MapboxAndroidDemo/src/main/res/values/descriptions_strings.xml

@@ -73,6 +73,7 @@
     <string name="activity_java_services_static_image_description">Use Mapbox Java Services to build a url and download a static map.</string>
     <string name="activity_java_services_matrix_api_description">Use the Directions Matrix API to receive driving times between 2-25 different locations.</string>
     <string name="activity_java_services_geocoding_description">Use the Geocoding API to receive information about specific coordinates.</string>
+    <string name="activity_java_services_isochrone_description">Use the Isochrone API to receive information about how far you can travel within a given time.</string>
     <string name="activity_plugins_traffic_plugin_description">Use the traffic plugin to display live car congestion data on top of a map.</string>
     <string name="activity_plugins_building_plugin_description">Use the building plugin to easily display 3D building height</string>
     <string name="activity_location_location_component_description">Use the location component to easily show a user\'s location on the map</string>

MapboxAndroidDemo/src/main/res/values/titles_strings.xml

@@ -72,6 +72,7 @@
     <string name="activity_java_services_static_image_title">Download a static map</string>
     <string name="activity_java_services_maxtrix_api_title">Retrieve travel times between many points</string>
     <string name="activity_java_services_geocoding_title">Make a geocode request</string>
+    <string name="activity_java_services_isochrone_title">Make a isochrone request</string>
     <string name="activity_plugins_traffic_plugin_title">Display real-time traffic</string>
     <string name="activity_plugins_building_plugin_title">Display buildings in 3D</string>
     <string name="activity_location_location_component_title">Show a user\'s location</string>

MapboxAndroidDemo/src/main/res/values/urls_strings.xml

@@ -73,6 +73,7 @@
     <string name="activity_java_services_optimization_url" translatable="false">http://i.imgur.com/guEQtlP.jpg</string>
     <string name="activity_java_services_matrix_url" translatable="false">https://i.imgur.com/65RlfRZ.png</string>
     <string name="activity_java_services_geocoding_url" translatable="false">https://i.imgur.com/9xl3EF8.png</string>
+    <string name="activity_java_services_isochrone_url" translatable="false">https://i.imgur.com/FHkeL7m.png</string>
     <string name="activity_plugins_traffic_plugin_url" translatable="false">http://i.imgur.com/HRriOVR.png</string>
     <string name="activity_plugins_building_plugin_url" translatable="false">http://i.imgur.com/Vcu67UR.png</string>
     <string name="activity_location_location_component_url" translatable="false">https://i.imgur.com/77PVsni.png</string>