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flutter_map_dragmarker

A drag marker for flutter_map.

See the example/lib/main.dart for usage, but the included example below in this file should show pretty much everything.

ko-fi

Usage

  • This layer should probably be the last layer so IF it needs to be dragged (otherwise why would you use this :)). If not, other layers may intercept the gestures.
  • offset and dragOffset are there for tweaking icon/images if they should not get displayed centered.
  • height is mainly for Images, use Icon(..., size: ...), but be aware internal calculations are based on size.
  • rotateMarker toggles the markers' rotation on and off. True keeping markers upright.
  • Use scrollMapNearEdge if the map should scroll when a marker is dragged near the edge.
  • Enable useLongPress if you want to enable dragging after a long press
  FlutterMap(
    options: MapOptions(center: LatLng(45.5231, -122.6765), zoom: 9),
    children: [
      TileLayer(
        urlTemplate: 'https://tile.openstreetmap.org/{z}/{x}/{y}.png',
      ),
      DragMarkers(
        markers: [
          DragMarker(
            point: LatLng(45.535, -122.675),
            offset: const Offset(0.0, -8.0),
            builder: (ctx) => const Icon(Icons.location_on, size: 50),
            onDragUpdate: (details, latLng) => print(latLng),
          ),
        ],
      ),
    ],
  ),

Further notes

It may be interesting to move the map alternately to marker, too. So the marker stays in place, but then technically you aren't dragging anymore, so thoughts welcome.