[android] expose OnRenderModeChangedListener

platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/location/LocationComponent.java

@@ -164,6 +164,8 @@ public final class LocationComponent {
     = new CopyOnWriteArrayList<>();
   private final CopyOnWriteArrayList<OnCameraTrackingChangedListener> onCameraTrackingChangedListeners
     = new CopyOnWriteArrayList<>();
+  private final CopyOnWriteArrayList<OnRenderModeChangedListener> onRenderModeChangedListeners
+    = new CopyOnWriteArrayList<>();
 
   // Workaround for too frequent updates, see https://github.com/mapbox/mapbox-gl-native/issues/13587
   private long fastestInterval;
@@ -863,6 +865,24 @@ public final class LocationComponent {
     onCameraTrackingChangedListeners.remove(listener);
   }
 
+  /**
+   * Adds a listener that gets invoked when render mode changes.
+   *
+   * @param listener Listener that gets invoked when render mode changes.
+   */
+  public void addOnRenderModeChangedListener(@NonNull OnRenderModeChangedListener listener) {
+    onRenderModeChangedListeners.add(listener);
+  }
+
+  /**
+   * Removes a listener that gets invoked when render mode changes.
+   *
+   * @param listener Listener that gets invoked when render mode changes.
+   */
+  public void removeRenderModeChangedListener(@NonNull OnRenderModeChangedListener listener) {
+    onRenderModeChangedListeners.remove(listener);
+  }
+
   /**
    * Adds the passed listener that gets invoked when user updates have stopped long enough for the last update
    * to be considered stale.
@@ -1323,6 +1343,9 @@ public final class LocationComponent {
     @Override
     public void onRenderModeChanged(int currentMode) {
       updateAnimatorListenerHolders();
+      for (OnRenderModeChangedListener listener : onRenderModeChangedListeners) {
+        listener.onRenderModeChanged(currentMode);
+      }
     }
   };
 

platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/location/OnRenderModeChangedListener.java

@@ -5,7 +5,7 @@ import com.mapbox.mapboxsdk.location.modes.RenderMode;
 /**
  * Listener that gets invoked when layer render mode changes.
  */
-interface OnRenderModeChangedListener {
+public interface OnRenderModeChangedListener {
 
   /**
    * Invoked on every {@link RenderMode} change.