Merge branch 'release-boba' into masterupstream/fabian-merge-v4.0.0

# Conflicts:
#	circle.yml
#	include/mbgl/style/expression/let.hpp
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/geometry/LatLngBounds.java
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/MapGestureDetector.java
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/MapKeyListener.java
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/MapView.java
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/MapboxMap.java
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/Projection.java
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/Transform.java
#	platform/android/MapboxGLAndroidSDK/src/test/java/com/mapbox/mapboxsdk/geometry/LatLngBoundsTest.java
#	platform/android/MapboxGLAndroidSDKTestApp/src/main/AndroidManifest.xml
#	platform/android/gradle/dependencies.gradle
#	platform/android/src/example_custom_layer.cpp
#	platform/android/src/geojson/point.cpp
#	platform/darwin/src/NSPredicate+MGLAdditions.mm
#	platform/darwin/test/MGLExpressionTests.mm
#	platform/ios/Mapbox-iOS-SDK-nightly-dynamic.podspec
#	platform/ios/Mapbox-iOS-SDK-symbols.podspec
#	platform/ios/Mapbox-iOS-SDK.podspec
#	platform/ios/app/MBXViewController.m
#	src/mbgl/renderer/layers/render_custom_layer.cpp
#	src/mbgl/style/conversion/filter.cpp
#	src/mbgl/style/expression/interpolate.cpp
#	src/mbgl/style/expression/value.cpp
#	test/style/filter.test.cpp

1 files changed, 24 insertions, 6 deletions

diff --git a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/style/layers/FillLayer.java b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/style/layers/FillLayer.java
index 3719ae9e1b..ed780811c0 100644
--- a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/style/layers/FillLayer.java
+++ b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/style/layers/FillLayer.java
@@ -4,10 +4,13 @@ package com.mapbox.mapboxsdk.style.layers;
 
 import android.support.annotation.ColorInt;
 import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
 import android.support.annotation.UiThread;
 
 import static com.mapbox.mapboxsdk.utils.ColorUtils.rgbaToColor;
 
+import com.google.gson.JsonArray;
+import com.mapbox.mapboxsdk.style.expressions.Expression;
 import com.mapbox.mapboxsdk.style.layers.TransitionOptions;
 
 /**
@@ -69,26 +72,41 @@ public class FillLayer extends Layer {
   }
 
   /**
-   * Set a single filter.
+   * Set a single expression filter.
    *
-   * @param filter the filter to set
+   * @param filter the expression filter to set
    */
-  public void setFilter(Filter.Statement filter) {
+  public void setFilter(Expression filter) {
     nativeSetFilter(filter.toArray());
   }
 
   /**
-   * Set a single filter.
+   * Set a single expression filter.
    *
-   * @param filter the filter to set
+   * @param filter the expression filter to set
    * @return This
    */
-  public FillLayer withFilter(Filter.Statement filter) {
+  public FillLayer withFilter(Expression filter) {
     setFilter(filter);
     return this;
   }
 
   /**
+   * Get a single expression filter.
+   *
+   * @return the expression filter to get
+   */
+  @Nullable
+  public Expression getFilter() {
+    Expression expression = null;
+    JsonArray array = (JsonArray) nativeGetFilter();
+    if (array != null) {
+      expression = Expression.Converter.convert(array);
+    }
+    return expression;
+  }
+
+  /**
    * Set a property or properties.
    *
    * @param properties the var-args properties