Create a new file lib/providers/weather_provider.dart:
import 'package:flutter/material.dart';
import '../models/weather.dart';
import '../services/weather_service.dart';
class WeatherProvider with ChangeNotifier {
final WeatherService _weatherService = WeatherService();
Weather? _weather;
Weather? get weather => _weather;
Future<void> fetchWeather(String city) async {
_weather = await _weatherService.fetchWeather(city);
notifyListeners();
}
}