How to fix error with flutter_google_places_autocomplete.dart? - google-maps

Question

I make an application with Google maps in which you can find a place and build a path to it on the map. I want to show places and addresses below it according to what the user types.After showing the results, I need to get its latitude and longitude to mark on the map.
I tried to use a flutter_google_places: 0.2.3 but functions(GoogleMapsPlaces, Prediction) were not defined. Next i used flutter_google_places_autocomplete: 0.1.3 and everything was fine. Unfortunately when i tride to run the project I got an error:
Compiler message:
file:///C:/Users/admin/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/flutter_google_places_autocomplete-0.1.3/lib/src/flutter_google_places_autocomplete.dart:337:35:
Error: Too many positional arguments: 0 allowed, but 1 found. Try
removing the extra positional arguments.
_places = new GoogleMapsPlaces(widget.apiKey);
^ file:///C:/Users/admin/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/google_maps_webservice-0.0.14/lib/src/places.dart:22:3:
Context: Found this candidate, but the arguments don't match.
GoogleMapsPlaces({ ^ Compiler failed on
C:\Users\admin\AndroidStudioProjects\advertise_me\lib\main.dart
FAILURE: Build failed with an exception.
Where: Script 'C:\Users\admin\flutter\packages\flutter_tools\gradle\flutter.gradle'
line: 647
What went wrong: Execution failed for task ':app:compileflutterBuildDebugandroid-arm64'.
Process 'command 'C:\Users\admin\flutter\bin\flutter.bat'' finished with non-zero exit value 1
Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
Get more help at https://help.gradle.org
BUILD FAILED in 9s Finished with error: Gradle task assembleDebug
failed with exit code 1
My pubspes.yaml:
dependencies: flutter:
sdk: flutter
cupertino_icons: ^0.1.2 url_launcher: ^4.2.0+1
google_maps_flutter: bottom_sheet_stateful: ^0.1.1
flutter_google_places_autocomplete: 0.1.3 geocoder: 0.1.2
google_maps_webservice: 0.0.14
My code:
import 'package:flutter/material.dart';
import 'package:advertise_me/login_screen.dart';
import 'dart:async';
import 'package:google_maps_webservice/geocoding.dart';
//import 'package:flutter_google_places/flutter_google_places.dart';
import 'package:flutter_google_places_autocomplete/flutter_google_places_autocomplete.dart';
import 'package:geocoder/geocoder.dart';
void main() => runApp(MyApp());
const kGoogleApiKey = "My key";
GoogleMapsPlaces _places = GoogleMapsPlaces(apiKey: kGoogleApiKey);
class MyApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
body: demo(),
),
);
}
}
class demo extends StatefulWidget {
#override
demoState createState() => new demoState();
}
class demoState extends State<demo> {
#override
Widget build(BuildContext context) {
return Scaffold(
body: Container(
alignment: Alignment.center,
child: RaisedButton(
onPressed: () async {
Prediction p = await showGooglePlacesAutocomplete(
context: context, apiKey: kGoogleApiKey);
displayPrediction(p);
},
child: Text('Find address'),
)
)
);
}
Future<Null> displayPrediction(Prediction p) async {
if (p != null) {
PlacesDetailsResponse detail =
await _places.getDetailsByPlaceId(p.placeId);
var placeId = p.placeId;
double lat = detail.result.geometry.location.lat;
double lng = detail.result.geometry.location.lng;
var address = await Geocoder.local.findAddressesFromQuery(p.description);
print(lat);
print(lng);
}
}
}
How do i fix this error?
Any help is much appreciated.

Answer 1

flutter_google_places_autocomplete is deprecated and you should use flutter_google_places instead. See documentation : https://pub.dev/packages/flutter_google_places_autocomplete
And once you use flutter_google_places, use
Prediction p = await PlacesAutoComplete.show() instead of showGooglePlacesAutoComplete()
======= updated answer =====
import 'package:flutter/material.dart';
//import 'package:advertise_me/login_screen.dart';
import 'dart:async';
import 'package:flutter_google_places/flutter_google_places.dart';
import 'package:geocoder/geocoder.dart';
import 'package:google_maps_webservice/places.dart';
void main() => runApp(MyApp());
const kGoogleApiKey = "My key";
GoogleMapsPlaces _places = GoogleMapsPlaces(apiKey: kGoogleApiKey);
class MyApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
body: demo(),
),
);
}
}
class demo extends StatefulWidget {
#override
demoState createState() => new demoState();
}
class demoState extends State<demo> {
#override
Widget build(BuildContext context) {
return Scaffold(
body: Container(
alignment: Alignment.center,
child: RaisedButton(
onPressed: () async {
Prediction p = await PlacesAutocomplete.show(
context: context, apiKey: kGoogleApiKey);
displayPrediction(p);
},
child: Text('Find address'),
)
)
);
}
Future<Null> displayPrediction(Prediction p) async {
if (p != null) {
PlacesDetailsResponse detail =
await _places.getDetailsByPlaceId(p.placeId);
var placeId = p.placeId;
double lat = detail.result.geometry.location.lat;
double lng = detail.result.geometry.location.lng;
var address = await Geocoder.local.findAddressesFromQuery(p.description);
print(lat);
print(lng);
}
}
}

Answer 2

use import 'package:google_maps_webservice/places.dart'; along with, import 'package:flutter_google_places/flutter_google_places.dart';

Answer 3

Use complete list of function parameters like:
Prediction p = await PlacesAutocomplete.show( offset: 0, radius: 1000, types: [], strictbounds: false,
region: "ar", context: context, apiKey: googleAPIKey, mode: Mode.overlay, language: "es", components: [Component(Component.country, "ar")] );