flutter google places: Unhandled Exception: Null check operator used on a null value

Question

I am developing an application using google map and google places.

When I call PlacesAutocomplete.show(), it gives the following error message. Null check operator used on a null value

• pubspec.yaml

  environment:
     sdk: ">=2.7.0 <3.0.0"
  
  dependencies:
     google_maps_flutter: ^2.0.5
     flutter_polyline_points: ^1.0.0
     location: ^4.1.1  
     flutter_google_places: ^0.3.0
  

• Call

  InkWell(
     onTap: () async {
         Prediction p = await PlacesAutocomplete.show(
            context: context,
            apiKey: GOOGLE_API_KEY,
         );
      }, child: Text("SHOW") 
  ),
  

Thanks in advance.

Answer 1

You need to provide all the required and non null parameters of the function .show. Something like that:

Prediction p = await PlacesAutocomplete.show(
      offset: 0,
      radius: 1000,
      strictbounds: false,
      region: "us",
      language: "en",
      context: context,
      mode: Mode.overlay,
      apiKey: Env.googleapikey,
      sessionToken: sessionToken,
      components: [new Component(Component.country, "us")],
      types: ["(cities)"],
      hint: "Search City",
      startText: city == null || city == "" ? "" : city
    );