帶有OpenWeatherMapAPI的SwiftUI天氣應用程式回傳“無法記錄指標”錯誤-有解無憂

我正在嘗試設定一個新的 SwiftUI 天氣應用程式，它使用 OpenWeatherMap Api 字串“api.openweathermap.org/data/2.5/weather?q={city name}&appid={API key}”來傳遞一個城市。我設定了 contentView、model 和 viewModel 以回傳城市名稱、溫度和天氣描述，但在運行應用程式時仍然出現以下錯誤：

2021-11-09 23:26:56.923188-0500 SwftUIMVVMWeatherDemo[13982:634181] [boringssl] boringssl_metrics_log_metric_block_invoke(144) Failed to log metrics
failed

我的contentView、model、viewModel如下：

內容視圖

import SwiftUI

struct ContentView: View {
    
    @StateObject var viewModel = WeatherViewModel()
        
    var body: some View {
        NavigationView {

            VStack {
                
                Text(viewModel.name)
                    .font(.system(size: 32))
                Text(viewModel.temp)
                    .font(.system(size: 44))
                Text(viewModel.descriptionText)
                    .font(.system(size: 24))

                Spacer()
            }
            .navigationTitle("Weather MVVM")
        }.padding()
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}

模型

import Foundation

struct WeatherModel: Codable {
    let name: String
    let main: CurrentWeather
}

struct CurrentWeather: Codable {
    let temp: Float
    let weather: [WeatherInfo]
}

struct WeatherInfo: Codable {
    let description: String
}

視圖模型

import Foundation

class WeatherViewModel: ObservableObject {
    
    @Published var name: String = "-"
    @Published var temp: String = "-"
    @Published var descriptionText: String = "-"
    
    init() {
        fetchWeather()
    }
    
    func fetchWeather() {
                
        guard let url = URL(string: "https://api.openweathermap.org/data/2.5/weather?q=chicago&appid=<myAPIKeyGoesHere>") else {
            return
        }
        
        let task = URLSession.shared.dataTask(with: url) { data, _, error in
            // get data
            guard let data = data, error == nil else {
                return
            }
            
            //convert data to model
            do {
                let model = try JSONDecoder().decode(WeatherModel.self, from: data)
                
                DispatchQueue.main.async {                    
                    self.name = model.name
                    self.temp = "\(model.main.temp)"
                    self.descriptionText = model.main.weather.first?.description ?? "No Description"
                }
            }
            catch {
                print("failed")
            }
        }
        task.resume()
    }
}

錯誤資訊含糊不清。知道可能有什么問題嗎？感謝您的反饋！

uj5u.com熱心網友回復：

這可能是由于您的模型不正確。嘗試這個：

struct WeatherModel: Codable {
    let name: String
    let main: CurrentWeather
    let weather: [WeatherInfo]   // <--- here
}

struct CurrentWeather: Codable {
    let temp: Float
    // let weather: [WeatherInfo]  // <--- NOT here
}

這座城市也是Chicago，雖然它似乎與chicago

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標籤：ios 迅速迅捷 swiftui 列表打开天气图

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