Unity3d自动获取所在城市天气数据

 

获取实时天气这里用到的是【心知天气】开发接口，再用Newtonsoft.Json解析返回的数据。主要为三步

1.查询本机网络的公网IP（http://icanhazip.com/）

2.根据公网IP查询所在城市。

3.根据所在城市查询天气。

using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System.Collections;
using UnityEngine;
using UnityEngine.Networking;
using UnityEngine.UI;

public class CityWeather : MonoBehaviour
{
    public Text textWeather;
    public Image imgWeather;
    public Text textTemperature;
    public Text textCity;

    void Start()
    {
        StartCoroutine(GetRuntimeWeather());
    }

    IEnumerator GetRuntimeWeather()
    {
        //获取本地公网IP
        UnityWebRequest wwwWebIp = UnityWebRequest.Get(@"http://icanhazip.com/");
        yield return wwwWebIp.SendWebRequest();
        if (wwwWebIp.isNetworkError || wwwWebIp.isHttpError)
        {
            yield break;
        }

        //根据IP查询城市（心知天气提供接口，需要申请key）
        string urlQueryCity = "https://api.seniverse.com/v3/location/search.json?key={yourkey}&q=" + wwwWebIp.downloadHandler.text;
        UnityWebRequest wwwQueryCity = UnityWebRequest.Get(urlQueryCity);
        yield return wwwQueryCity.SendWebRequest();
        if (wwwQueryCity.isNetworkError || wwwQueryCity.isHttpError)
        {
            yield break;
        }

        JObject cityData = JsonConvert.DeserializeObject(wwwQueryCity.downloadHandler.text);
        string cityId = cityData["results"][0]["id"].ToString();
        textCity.text = cityData["results"][0]["name"].ToString();

        //根据城市查询天气（心知天气提供接口，需要申请key）
        string urlWeather = string.Format("https://api.seniverse.com/v3/weather/now.json?key={yourkey}&location={0}&language=zh-Hans&unit=c", cityId);
        UnityWebRequest wwwWeather = UnityWebRequest.Get(urlWeather);
        yield return wwwWeather.SendWebRequest();

        if (wwwWeather.isNetworkError || wwwWeather.isHttpError)
        {
            Debug.Log(wwwWeather.error);
        }

        //解析天气
        try
        {
            JObject weatherData = JsonConvert.DeserializeObject(wwwWeather.downloadHandler.text);
            string spriteName = string.Format("Weather/{0}@2x", weatherData["results"][0]["now"]["code"].ToString());

            //天气文字
            textWeather.text = weatherData["results"][0]["now"]["text"].ToString();

            //图片，可以在心知天气上下载
            imgWeather.sprite = Resources.Load(spriteName);

            //温度
            textTemperature.text = string.Format("{0} °C", weatherData["results"][0]["now"]["temperature"].ToString());
        }
        catch (System.Exception ex)
        {
            Debug.Log(ex.Message);
        }
    }
}


/*
 * {
	"results": [{
		"location": {
			"id": "WX4FBXXFKE4F",
			"name": "北京",
			"country": "CN",
			"path": "北京,北京,中国",
			"timezone": "Asia/Shanghai",
			"timezone_offset": "+08:00"
		},
		"now": {
			"text": "晴",
			"code": "0",
			"temperature": "-10"
		},
		"last_update": "2021-01-08T09:20:00+08:00"
	}]
}
 */