Feature in Map not draggable and callback added using `MapLibreMController.onFeatureDrag.add()` is never called

[pamtbaau]

Platforms

android

Version of flutter maplibre_gl

0.19.0+2

Bug Description

• The Feature added to the map cannot be dragged.
• When add a callback using MapLibreMController.onFeatureDrag.add(callback), the callback never gets called.

Steps to Reproduce

Using 'layer.dart' of Example:

• Add callback:

  void _onMapCreated(MapLibreMapController controller) {
  this.controller = controller;
  
  controller.onFeatureTapped.add(onFeatureTap);
  controller.onFeatureDrag.add(onFeatureDrag);
  }

• Define callback:

  void onFeatureDrag(
  dynamic featureId, {
  required LatLng current,
  required LatLng delta,
  required DragEventType eventType,
  required LatLng origin,
  required Point<double> point,
  }) {
  print('Feature with id: $featureId is being called');
  }

Expected Results

I would expect:

• The feature in the Map to be draggable
• The callback to be called.

Actual Results

• The feature in the Map cannot be dragged
• The callback is never called

Code Sample

See 'Steps to Reproduce'