[android] - expose getMap on native_map_view

platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/NativeMapView.java

@@ -64,7 +64,7 @@ final class NativeMapView {
   private boolean destroyed = false;
 
   // Holds the pointer to JNI NativeMapView
-  private long nativePtr = 0;
+  long nativePtr = 0;
 
   // Listener invoked to return a bitmap of the map
   private MapboxMap.SnapshotReadyCallback snapshotReadyCallback;

platform/android/src/native_map_view.cpp

@@ -940,6 +940,10 @@ jni::jboolean NativeMapView::getPrefetchesTiles(JNIEnv&) {
     return jni::jboolean(map->getPrefetchZoomDelta() > 0);
 }
 
+mbgl::Map& NativeMapView::getMap() {
+    return *map;
+}
+
 // Static methods //
 
 jni::Class<NativeMapView> NativeMapView::javaClass;

platform/android/src/native_map_view.hpp

@@ -248,6 +248,8 @@ public:
 
     jni::jboolean getPrefetchesTiles(JNIEnv&);
 
+    mbgl::Map& getMap();
+
 private:
     std::unique_ptr<AndroidRendererFrontend> rendererFrontend;