Adding markers dynamically to flutter google map

Question

I\'m using Flutter to make a mobile application that uses a map. We decided to use Google map and the plugin for flutter we use is:

google_maps_flutte

Answer 1

If there's no specific reason for you to use Map data structure, here's what I've done in the past.

I have a Set of Marker in my State

Set<Marker> markers = Set();

Give it to the map widget. markers: markers

GoogleMap(
  onMapCreated: _onMapCreated,
  myLocationEnabled: true,
  initialCameraPosition:
    CameraPosition(target: LatLng(0.0, 0.0)),
  markers: markers,
)

And then adding the Marker, which I'm building with search result and which you'll be building with your user's location, to Set of Marker in setState method.

// Create a new marker
Marker resultMarker = Marker(
  markerId: MarkerId(responseResult.name),
  infoWindow: InfoWindow(
  title: "${responseResult.name}",
  snippet: "${responseResult.types?.first}"),
  position: LatLng(responseResult.geometry.location.lat,
  responseResult.geometry.location.lng),
);
// Add it to Set
markers.add(resultMarker);

Edit: I've just noticed you're using GoogleMap widget in your initState, you need to move it to the build method if you want to rebuild it everytime with the new state values.