[android] - selected symbol with z-index example

1 files changed, 67 insertions, 0 deletions

diff --git a/platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/maplayout/SimpleMapActivity.java b/platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/maplayout/SimpleMapActivity.java
index 8f8a5af3cc..3dfa2655f6 100644
--- a/platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/maplayout/SimpleMapActivity.java
+++ b/platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/maplayout/SimpleMapActivity.java
@@ -3,15 +3,29 @@ package com.mapbox.mapboxsdk.testapp.activity.maplayout;
 import android.os.Bundle;
 import android.support.v7.app.AppCompatActivity;
 
+import com.mapbox.geojson.Feature;
+import com.mapbox.geojson.FeatureCollection;
+import com.mapbox.geojson.Point;
+import com.mapbox.mapboxsdk.camera.CameraUpdateFactory;
+import com.mapbox.mapboxsdk.geometry.LatLng;
 import com.mapbox.mapboxsdk.maps.MapView;
+import com.mapbox.mapboxsdk.style.expressions.Expression;
+import com.mapbox.mapboxsdk.style.layers.Layer;
+import com.mapbox.mapboxsdk.style.layers.PropertyFactory;
+import com.mapbox.mapboxsdk.style.layers.SymbolLayer;
+import com.mapbox.mapboxsdk.style.sources.GeoJsonSource;
 import com.mapbox.mapboxsdk.testapp.R;
 
+import java.util.ArrayList;
+import java.util.List;
+
 /**
  * Test activity showcasing a simple MapView without any MapboxMap interaction.
  */
 public class SimpleMapActivity extends AppCompatActivity {
 
   private MapView mapView;
+  private boolean selected;
 
   @Override
   protected void onCreate(Bundle savedInstanceState) {
@@ -20,6 +34,59 @@ public class SimpleMapActivity extends AppCompatActivity {
 
     mapView = (MapView) findViewById(R.id.mapView);
     mapView.onCreate(savedInstanceState);
+    mapView.getMapAsync(mapboxMap -> {
+      List<Feature> features = new ArrayList<>();
+      Feature feature1 = Feature.fromGeometry(Point.fromLngLat(21.032070, 52.2401));
+      feature1.addBooleanProperty("selected", false);
+      Feature feature2 = Feature.fromGeometry(Point.fromLngLat(21.032070, 52.2402));
+      feature2.addBooleanProperty("selected", false);
+      Feature feature3 = Feature.fromGeometry(Point.fromLngLat(21.032070, 52.2403));
+      feature3.addBooleanProperty("selected", false);
+
+      features.add(feature1);
+      features.add(feature2);
+      features.add(feature3);
+
+      FeatureCollection featureCollection = FeatureCollection.fromFeatures(features);
+
+      GeoJsonSource source = new GeoJsonSource("source", featureCollection);
+      mapboxMap.addSource(source);
+
+      Layer layer = new SymbolLayer("layer", "source")
+        .withProperties(PropertyFactory.iconImage(
+          Expression.switchCase(
+            Expression.get("selected"), Expression.literal(""),
+            Expression.literal("cafe-15")
+          )),
+          PropertyFactory.iconSize(2f),
+          PropertyFactory.iconAllowOverlap(true));
+      mapboxMap.addLayer(layer);
+
+      Layer layerSelected = new SymbolLayer("layerSelected", "source")
+        .withProperties(PropertyFactory.iconImage(
+          Expression.switchCase(
+            Expression.get("selected"), Expression.literal("restaurant-15"),
+            Expression.literal("")
+          )),
+          PropertyFactory.iconSize(2f),
+          PropertyFactory.iconAllowOverlap(true));
+      mapboxMap.addLayerAbove(layerSelected, "layer"); //noting, that we are explicitly z-indexing the selected layer
+
+      mapboxMap.addOnMapClickListener(point -> {
+        if (selected) {
+          feature3.addBooleanProperty("selected", false);
+        } else {
+          feature3.addBooleanProperty("selected", true);
+        }
+        source.setGeoJson(featureCollection);
+        selected = !selected;
+      });
+
+      mapboxMap.moveCamera(CameraUpdateFactory.newLatLngZoom(
+        new LatLng(52.2401, 21.032070),
+        15.5
+      ));
+    });
   }
 
   @Override