private Boolean updateMarkers(ReadableArray markerArray) {
    try {
      // First clear all markers from the map
      for (Marker marker : mapMarkers) {
        marker.remove();
      }
      mapMarkers.clear();
      markerLookup.clear();

      // All markers to map
      for (int i = 0; i < markerArray.size(); i++) {
        ReadableMap markerJson = markerArray.getMap(i);
        if (markerJson.hasKey("coordinates")) {
          Marker marker = map.addMarker(createMarker(markerJson));

          if (markerJson.hasKey("id")) {
            // As we have to lookup it either way, switch it around
            markerLookup.put(marker.getId(), markerJson.getString("id"));
            markerLookup.put(markerJson.getString("id"), marker.getId().replace("m", ""));
          }

          mapMarkers.add(marker);

        } else break;
      }

      return true;
    } catch (Exception e) {
      e.printStackTrace();
      return false;
    }
  }
 public void addMarker(ReadableMap config) {
   MarkerOptions options = createMarker(config);
   Marker marker = map.addMarker(options);
   mapMarkers.add(marker);
   if (config.hasKey("id")) {
     // As we have to lookup it either way, switch it around
     markerLookup.put(marker.getId(), config.getString("id"));
     markerLookup.put(config.getString("id"), marker.getId().replace("m", ""));
   }
 }
  private boolean onLocationMarkerTap(Marker marker) {
    if (userPositionClickArea == null) return false;
    if (userPositionClickArea2 == null) return false;

    if (marker.getId().equals(userPositionClickArea.getId())
        || marker.getId().equals(userPositionClickArea2.getId())) {
      if (locationMarkerTapListener != null) locationMarkerTapListener.onMarkerTapped();
      return true;
    }

    return false;
  }
  public void addMarkers(List<GridPoint> gridPointList, List<PointEntity> pointEntityList) {
    clearMap();
    Marker m;
    LatLngBounds.Builder builder = new LatLngBounds.Builder();

    for (GridPoint gridPoint : gridPointList) {
      Bitmap icon =
          gridPoint.getScore() > 10
              ? gridPoint.getScore() > 20
                  ? BitmapFactory.decodeResource(getResources(), R.drawable.red_dot)
                  : BitmapFactory.decodeResource(getResources(), R.drawable.yellow_dot)
              : BitmapFactory.decodeResource(getResources(), R.drawable.green_dot);
      float hue =
          gridPoint.getScore() > 10
              ? gridPoint.getScore() > 20
                  ? BitmapDescriptorFactory.HUE_RED
                  : BitmapDescriptorFactory.HUE_YELLOW
              : BitmapDescriptorFactory.HUE_GREEN;

      markerOptions = new MarkerOptions();
      markerOptions.visible(true);
      markerOptions.position(
          new LatLng(
              gridPoint.getLocation().getLatitude().doubleValue(),
              gridPoint.getLocation().getLongitude().doubleValue()));
      markerOptions.draggable(false);
      markerOptions.icon(BitmapDescriptorFactory.fromBitmap(icon));
      // markerOptions.icon(BitmapDescriptorFactory.defaultMarker(hue));

      m = googleMap.addMarker(markerOptions);
      gridMap.put(m.getId(), gridPoint);
      builder.include(m.getPosition());
    }

    for (PointEntity pointEntity : pointEntityList) {
      Bitmap icon =
          pointEntity.getPointType().equals(PointType.PERSON)
              ? BitmapFactory.decodeResource(getResources(), R.drawable.man)
              : pointEntity.getPointType().equals(PointType.POLICE_STATION)
                  ? BitmapFactory.decodeResource(getResources(), R.drawable.police)
                  : BitmapFactory.decodeResource(getResources(), R.drawable.hospital);
      markerOptions = new MarkerOptions();
      markerOptions.visible(true);
      markerOptions.position(
          new LatLng(
              pointEntity.getLocation().getLatitude().doubleValue(),
              pointEntity.getLocation().getLongitude().doubleValue()));
      markerOptions.draggable(false);
      markerOptions.icon(BitmapDescriptorFactory.fromBitmap(icon));

      m = googleMap.addMarker(markerOptions);
      pointMap.put(m.getId(), pointEntity);
      builder.include(m.getPosition());
    }

    if (gridPointList.size() > 1) {
      LatLngBounds bounds = builder.build();
      CameraUpdate cu = CameraUpdateFactory.newLatLngBounds(bounds, 0);
      googleMap.animateCamera(cu);
    } else if (gridPointList.size() > 0) {
      CameraPosition cameraPosition =
          new CameraPosition.Builder()
              .target(
                  new LatLng(
                      gridPointList.get(0).getLocation().getLatitude().doubleValue(),
                      gridPointList.get(0).getLocation().getLongitude().doubleValue()))
              .zoom(zoomLevel)
              .bearing(0)
              .tilt(45)
              .build();
      googleMap.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition));
    }

    markersDisplayed = true;
    heatmapDisplayed = false;
    clusterDisplayed = false;
  }