[android] - fix geojson example, internal logic change with expressions conversion

platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/style/GeoJsonClusteringActivity.java

@@ -5,7 +5,6 @@ import android.os.Bundle;
 import android.support.v4.content.res.ResourcesCompat;
 import android.support.v7.app.AppCompatActivity;
 import android.view.MenuItem;
-
 import com.mapbox.mapboxsdk.camera.CameraUpdateFactory;
 import com.mapbox.mapboxsdk.geometry.LatLng;
 import com.mapbox.mapboxsdk.maps.MapView;
@@ -16,23 +15,34 @@ import com.mapbox.mapboxsdk.style.layers.SymbolLayer;
 import com.mapbox.mapboxsdk.style.sources.GeoJsonOptions;
 import com.mapbox.mapboxsdk.style.sources.GeoJsonSource;
 import com.mapbox.mapboxsdk.testapp.R;
+import com.mapbox.mapboxsdk.utils.BitmapUtils;
+import timber.log.Timber;
 
 import java.net.MalformedURLException;
 import java.net.URL;
 
-import timber.log.Timber;
-
 import static com.mapbox.mapboxsdk.style.expressions.Expression.all;
+import static com.mapbox.mapboxsdk.style.expressions.Expression.division;
+import static com.mapbox.mapboxsdk.style.expressions.Expression.exponential;
 import static com.mapbox.mapboxsdk.style.expressions.Expression.get;
+import static com.mapbox.mapboxsdk.style.expressions.Expression.gt;
 import static com.mapbox.mapboxsdk.style.expressions.Expression.gte;
+import static com.mapbox.mapboxsdk.style.expressions.Expression.has;
+import static com.mapbox.mapboxsdk.style.expressions.Expression.interpolate;
 import static com.mapbox.mapboxsdk.style.expressions.Expression.literal;
 import static com.mapbox.mapboxsdk.style.expressions.Expression.lt;
+import static com.mapbox.mapboxsdk.style.expressions.Expression.rgb;
+import static com.mapbox.mapboxsdk.style.expressions.Expression.stop;
 import static com.mapbox.mapboxsdk.style.expressions.Expression.toNumber;
 import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.circleColor;
 import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.circleRadius;
+import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconColor;
 import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconImage;
+import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconSize;
+import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.textAllowOverlap;
 import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.textColor;
 import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.textField;
+import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.textIgnorePlacement;
 import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.textSize;
 
 /**
@@ -56,7 +66,11 @@ public class GeoJsonClusteringActivity extends AppCompatActivity {
     mapView.getMapAsync(map -> {
       mapboxMap = map;
       mapboxMap.animateCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(37.7749, 122.4194), 0));
-
+      mapboxMap.addImage(
+        "icon-id",
+        BitmapUtils.getBitmapFromDrawable(getResources().getDrawable(R.drawable.ic_hearing_black_24dp)),
+        true
+      );
       // Add a clustered source with some layers
       addClusteredGeoJsonSource();
     });
@@ -139,7 +153,22 @@ public class GeoJsonClusteringActivity extends AppCompatActivity {
     };
 
     SymbolLayer unclustered = new SymbolLayer("unclustered-points", "earthquakes");
-    unclustered.setProperties(iconImage("marker-15"));
+    unclustered.setProperties(
+      iconImage("icon-id"),
+      iconSize(
+        division(
+          get("mag"), literal(4.0f)
+        )
+      ),
+      iconColor(
+        interpolate(exponential(1), get("mag"),
+          stop(2.0, rgb(0, 255, 0)),
+          stop(4.5, rgb(0, 0, 255)),
+          stop(7.0, rgb(255, 0, 0))
+        )
+      )
+    );
+
     mapboxMap.addLayer(unclustered);
 
     for (int i = 0; i < layers.length; i++) {
@@ -153,11 +182,12 @@ public class GeoJsonClusteringActivity extends AppCompatActivity {
       Expression pointCount = toNumber(get("point_count"));
       circles.setFilter(
         i == 0
-          ? gte(pointCount, literal(layers[i][0])) :
-          all(
-            gte(pointCount, literal(layers[i][0])),
-            lt(pointCount, literal(layers[i - 1][0]))
-          )
+          ? all(has("point_count"),
+          gte(pointCount, literal(layers[i][0]))
+        ) : all(has("point_count"),
+          gt(pointCount, literal(layers[i][0])),
+          lt(pointCount, literal(layers[i - 1][0]))
+        )
       );
       mapboxMap.addLayer(circles);
     }
@@ -165,9 +195,11 @@ public class GeoJsonClusteringActivity extends AppCompatActivity {
     // Add the count labels
     SymbolLayer count = new SymbolLayer("count", "earthquakes");
     count.setProperties(
-      textField(get("point_count")),
+      textField(Expression.toString(get("point_count"))),
       textSize(12f),
-      textColor(Color.WHITE)
+      textColor(Color.WHITE),
+      textIgnorePlacement(true),
+      textAllowOverlap(true)
     );
     mapboxMap.addLayer(count);
 

platform/android/MapboxGLAndroidSDKTestApp/src/main/res/drawable/ic_hearing_black_24dp.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M17,20c-0.29,0 -0.56,-0.06 -0.76,-0.15 -0.71,-0.37 -1.21,-0.88 -1.71,-2.38 -0.51,-1.56 -1.47,-2.29 -2.39,-3 -0.79,-0.61 -1.61,-1.24 -2.32,-2.53C9.29,10.98 9,9.93 9,9c0,-2.8 2.2,-5 5,-5s5,2.2 5,5h2c0,-3.93 -3.07,-7 -7,-7S7,5.07 7,9c0,1.26 0.38,2.65 1.07,3.9 0.91,1.65 1.98,2.48 2.85,3.15 0.81,0.62 1.39,1.07 1.71,2.05 0.6,1.82 1.37,2.84 2.73,3.55 0.51,0.23 1.07,0.35 1.64,0.35 2.21,0 4,-1.79 4,-4h-2c0,1.1 -0.9,2 -2,2zM7.64,2.64L6.22,1.22C4.23,3.21 3,5.96 3,9s1.23,5.79 3.22,7.78l1.41,-1.41C6.01,13.74 5,11.49 5,9s1.01,-4.74 2.64,-6.36zM11.5,9c0,1.38 1.12,2.5 2.5,2.5s2.5,-1.12 2.5,-2.5 -1.12,-2.5 -2.5,-2.5 -2.5,1.12 -2.5,2.5z"/>
+</vector>