Unity OpenWeatherMap 範例

weather.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using SimpleJSON;
using UnityEditor;
using UnityEngine.Serialization;
using UnityEngine.UI;

public class whether : MonoBehaviour
{
    public int conditionID; // 天氣狀態 ID
    public string conditionImage; // 天氣狀態圖片
    public string conditionName; // 天氣狀態
    public string currentCity; // 目前城市
    public string currentZIPcode; // 目前郵遞區號
    public string currentCoordLatitude; // 目前經度
    public string currentCoordLongitude; // 目前緯度
    public string whetherLanguage; // 天氣語言
    public string appID; // appID
    public bool searchByCity, searchByZIPcode, searchByCoordinate; // 三個 checkbox 讓使用者選擇要怎麼搜尋（只可選一個）
    public Image myWeatherCondition; // UI 天氣狀態
    public Text myWeatherLabel; // UI 天氣標籤
    public Text myWhetherTemp; // UI 溫度
    public Text myHumidity; // UI 濕度
    public string retrievedCity; // 回傳城市
    public string retrievedCountry; // 回傳國家
    public string retrievedHumidity; // 回傳濕度

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

    IEnumerator SendRequest()
    {
        // 取得天氣
        // 範例：http://api.openweathermap.org/data/2.5/weather?q=Tokyo&lang=zh_tw&appid=8b2ee97645e0e072af5872ee00835acb

        WWW request;
        
        // 透過『城市名』取得天氣
        if (searchByCity == true && searchByCoordinate == false && searchByZIPcode == false)
        {
            request = new WWW("https://api.openweathermap.org/data/2.5/weather?q=" + currentCity + 
                                  "&lang=" + whetherLanguage + "&appid=" + appID );
            yield return request;
        }
        // 透過『地理座標』取得天氣
        else if (searchByCity == false && searchByCoordinate == true && searchByZIPcode == false)
        {
            request = new WWW("https://api.openweathermap.org/data/2.5/weather?lat=" + currentCoordLatitude + 
                                  "&lon=" + currentCoordLongitude + "&lang=" + whetherLanguage + "&appid=" + appID );
            yield return request;
        }
        // 透過『郵遞區號』取得天氣
        else if (searchByCity == false && searchByCoordinate == false && searchByZIPcode == true)
        {
            request = new WWW("https://api.openweathermap.org/data/2.5/weather?zip=" + currentZIPcode + 
                                  ",jp&lang=" + whetherLanguage + "&appid=" + appID );
            yield return request;
        }
        // 其他狀況，預設為『城市名』取得天氣
        else
        {
            request = new WWW("https://api.openweathermap.org/data/2.5/weather?q=" + currentCity + 
                                  "&lang=" + whetherLanguage + "&appid=" + appID );
            yield return request;
        }

        if (string.IsNullOrEmpty(request.error))
        {
            var N = JSON.Parse(request.text);
 
            retrievedCountry = N["sys"]["country"].Value; // 取得國家
            retrievedCity = N["name"].Value;              // 取得城市
            retrievedHumidity = N["main"]["humidity"].Value;
            currentCoordLatitude = N["coord"]["lat"].Value;
            currentCoordLongitude = N["coord"]["lon"].Value;

            string temp = N["main"]["temp"].Value;    // 取得溫度
            float tempTemp;                           // 變數，暫存解析中的溫度
            float.TryParse(temp, out tempTemp);       // 解析溫度
            float finalTemp = Mathf.Round((tempTemp - 273.0f)*10)/10;  // 儲存實際溫度
 
            int.TryParse(N["weather"][0]["id"].Value, out conditionID); // 取得天氣狀態 ID
            //conditionName = N["weather"][0]["main"].Value;            // 取得天氣狀態名稱
            conditionName = N["weather"][0]["description"].Value;       // 取得天氣狀態敘述
            conditionImage = N["weather"][0]["icon"].Value;             // 取得天氣狀態圖案 ID
            // 天氣狀態 ID 對照參考 https://openweathermap.org/weather-conditions

            myHumidity.text = "濕度：" + retrievedHumidity + "%"; // UI 顯示濕度
            myWhetherTemp.text = finalTemp + "℃"; // UI 顯示最終溫度
            myWeatherLabel.text = conditionName; // UI 顯示天氣狀態
        }
        else
        {
            Debug.Log("WWW error: " + request.error);
        }
 
        // 取得天氣狀態圖案
        WWW conditionRequest = new WWW("https://openweathermap.org/img/wn/" + conditionImage + "@2x.png");
        yield return conditionRequest;
 
        if (string.IsNullOrEmpty(conditionRequest.error))
        { 
           var mainTexture = myWeatherCondition.mainTexture;    // 建立 mainTexture 存放場景中圖案框
           Texture2D tex;    // 建立 Texture，存放下載後的圖片
           tex = new Texture2D(mainTexture.width, mainTexture.height, TextureFormat.DXT1, false);
           conditionRequest.LoadImageIntoTexture(tex);    // 將下載後的圖片檔案轉換至貼圖
           myWeatherCondition.sprite = Sprite.Create(tex, new Rect(0, 0, tex.width, tex.height), new Vector2(0, 0));
           Color c = myWeatherCondition.color;
           c.a = 1;
           myWeatherCondition.color = c;
        }
        else
        {
            Debug.Log("WWW error: " + conditionRequest.error);
        }
    }
}