Question

我的应用程序为用户提供了在应用程序中使用的天气源选择。我有Dark Sky，Open Weather和Accuweather都在工作。（Accuweather需要一个单独的url会话来获取其位置密钥。仍在进行此操作。）

我想添加国家气象局，但我迷失了自己。那里太多了，太复杂了。我唯一需要的数据是一个纬度/经度。当前的温度，压力和％RH，以及下一小时左右降水的概率。（开放天气不提供POP，Accuweather还需要另一个URL请求才能获得它。）

我怎样才能在Swift中制定URL会话以理想地获得一个返回我所需数据的会话？

这是我用于开始获取天气会话的代码。

func getWeather() {   // Goes out to fetch the weather
    var weatherStrings = getWeatherStrings()  // Holds strings appropriate to each weather source
    var urlString = weatherStrings[0]  // The url to get the data
    var weatherSite = weatherStrings[11]  // Short name of the weather source
    if let url = URL(string: urlString)  {  // Only proceeds with a valid URL
      var request = URLRequest(url: url)
      request.httpMethod = "GET"
      request.addValue("text/html", forHTTPHeaderField: "Content-Type")
            let taskWeather = URLSession.shared.dataTask(with: request) { (data, response, error) in
                if error != nil {
                }
            }
     if let data = data,  // Data has been received

//  Do some processing of the weather data
          var weatherReport = String(data: data, encoding: String.Encoding.utf8) {
          var weatherResults = self.getWeatherResults(weatherStrings: weatherStrings, weatherReport: weatherReport)
          var calcdWeatherResults = self.getCalcdWeatherResults(weatherResults: weatherResults)
          var timeStamp = weatherResults[0] as! Date
          let dateFormatter = DateFormatter()  // format the date for output
          dateFormatter.dateStyle = DateFormatter.Style.short
          dateFormatter.timeStyle = DateFormatter.Style.short
          var convertedDate = dateFormatter.string(from: timeStamp)  // The timeStamp from the weather site
//  Wrap up
          let config = URLSessionConfiguration.default
          let theSession = URLSession(configuration: config)   //  This is a dummy session for the next function
          self.dispatchWeatherOutput(calcdWeatherResults: calcdWeatherResults, weatherResults: weatherResults, theSession: theSession)
                }   // Closes the IF data is not nil
            }   //  Close Task
            taskWeather.resume()
        }   // Closes the IF let URL
}  // Close GetWeather function

使用Swift获取NWS API天气数据

0 个答案: