Add marker in Google Maps - Flutter

To add a list of simple markers, first create a list of markers:

List<Marker> _markers = <Marker>[];

Then add Marker to this list:

    _markers.add(      Marker(      markerId: MarkerId('SomeId'),      position: LatLng(38.123,35.123),      infoWindow: InfoWindow(      title: 'The title of the marker'      )     )   );

Consider that in infoWindow you can also add subtitle and other stuff.Finally add the google map widget:

GoogleMap(      initialCameraPosition: CameraPosition(        target: LatLng(38.9647,35.2233),        zoom: 9.0,      ),      mapType: MapType.normal,      markers: Set<Marker>.of(_markers),      onMapCreated: (GoogleMapController controller) {        _controller.complete(controller);      },    )

First of all create a map of markers as follows:

  Map<MarkerId, Marker> markers = <MarkerId, Marker>{MarkerId('marker_id_1'):Marker(markerId: MarkerId('marker_id_1'),position: LatLng(30.0444, 31.235),infoWindow: InfoWindow(title: 'marker_id_1', snippet: '*'),onTap: () {  //_onMarkerTapped(markerId);  print('Marker Tapped');},onDragEnd: (LatLng position) {  print('Drag Ended');},  )};

Then add googleMap anywhere you want as follows

GoogleMap(                          mapType: MapType.normal,                          //initialCameraPosition: cairo,                          markers: Set<Marker>.of(markers.values),                          //onMapCreated: (GoogleMapController controller) {                          //  _controller.complete(controller);                          //},                        )