How to change the icon size of Google Maps marker in Flutter?

Question

I am using google_maps_flutter in my flutter app to use google map I have custom marker icon and I load this with BitmapDescriptor.fromAsset(\"images/car.

Answer 1

So you can try the Ugly way . MediaQuery will return the ratio and check for conditions manually something Like so

 double mq = MediaQuery.of(context).devicePixelRatio;
 String icon = "images/car.png";
 if (mq>1.5 && mq<2.5) {icon = "images/car2.png";}
 else if(mq >= 2.5){icon = "images/car3.png";}
  mapController.addMarker(
    MarkerOptions(
       icon: BitmapDescriptor.fromAsset(icon),
       position: LatLng(37.4219999, -122.0862462),
     ),
   );

you need to add your different assets images in your images folder like

-images/car.png
-images/car2.png
-images/car3.png