Flutter天气应用 #

class Weather {
  final String city;
  final double temperature;
  final String description;
  final String icon;
  
  Weather({
    required this.city,
    required this.temperature,
    required this.description,
    required this.icon,
  });
  
  factory Weather.fromJson(Map<String, dynamic> json) => Weather(
    city: json['name'],
    temperature: json['main']['temp'].toDouble(),
    description: json['weather'][0]['description'],
    icon: json['weather'][0]['icon'],
  );
}

class WeatherService {
  final Dio _dio = Dio();
  final String apiKey = 'your_api_key';
  
  Future<Weather> getWeather(String city) async {
    try {
      final response = await _dio.get(
        'https://api.openweathermap.org/data/2.5/weather',
        queryParameters: {
          'q': city,
          'appid': apiKey,
          'units': 'metric',
        },
      );
      
      return Weather.fromJson(response.data);
    } catch (e) {
      throw Exception('Failed to load weather');
    }
  }
}