This package is discontinued because this reasons:
Map Input Field for flutter_form_builder package. Used to select coordinates on a map.
This package makes use of google_maps_flutter, for platform specific setup use the guidelines specified here
FormBuilderMapField(
attribute: 'Coordinates',
decoration: InputDecoration(labelText: 'Select Location'),
markerIconColor: Colors.red,
markerIconSize: 50,
onChanged: (val){
print(val);
},
),