在快速api和swiftui中苦苦掙扎

嗨，我正在努力從 rapidapi 獲取足球資料 api 以在 swift ui 中作業。這是下面的代碼

錯誤是“self.team = decodedTeams”在范圍內找不到“self”

在我的內容視圖中，我得到“$network.getTeams”型別的“EnvironmentObject.Wrapper”值沒有使用根型別“Network”的密鑰路徑的動態成員“getTeams”

我已經在我的 swiftui 代碼的 2 頁中列出了我在下面的任何幫助將不勝感激，我真的很努力解決這個問題

//  Network.swift
//  Football Scores
//

//

import Foundation

class Network: ObservableObject {
        @Published var teams: [Team] = []

}
func getTeams() {
let headers = [
    "X-RapidAPI-Key": "MY API KEY",
    "X-RapidAPI-Host": "api-football-v1.p.rapidapi.com"
]`

let request = NSMutableURLRequest(url: NSURL(string: "https://api-football-v1.p.rapidapi.com/v3/standings?season=2022&league=39")! as URL,
                                  cachePolicy: .useProtocolCachePolicy,
                                  timeoutInterval: 10.0)
request.httpMethod = "GET"
request.allHTTPHeaderFields = headers

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
    if (error != nil) {
        print(error)
    } else {
        let httpResponse = response as? HTTPURLResponse
        print(httpResponse)
        DispatchQueue.main.async {
                          do {
                              let decodedTeams = try JSONDecoder().decode([Team].self, from: data)
                              self.team = decodedTeams
                          } catch let error {
                              print("Error decoding: ", error)
                          }
                      }
    }
})

dataTask.resume()
}

和

//
//  Team.swift
//  Football Scores
//

//

import Foundation

struct Team: Identifiable, Decodable {
var id: Int
var name: String
var logo: String
var points: String
var goaldif: String
}

和

//  Football_ScoresApp.swift
//  Football Scores
//


import SwiftUI
import Foundation


@main

struct Football_ScoresApp: App {

var network = Network()

var body: some Scene {
    WindowGroup {
    
        ContentView()
                                       .environmentObject(network)
        }
    }

}

和

import SwiftUI
import CoreData

struct ContentView: View {
    @EnvironmentObject var network: Network


var body: some View {
    ScrollView {
                    Text("All teams")
                    .font(.title).bold()
            }
            .onAppear {
                network.getTeams()
            }
    VStack(alignment: .leading) {
        ForEach(network.teams) { team in
            HStack(alignment:.top) {
                Text("\(team.id)")

                VStack(alignment: .leading) {
                    Text(team.name)
                        .bold()

                   
                }
            }
            .frame(width: 300, alignment: .leading)
            .padding()
            .background(Color(#colorLiteral(red: 0.6667672396, green: 0.7527905703, blue: 1, alpha: 0.2662717301)))
            .cornerRadius(20)
        }
    }
    
}



}



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

uj5u.com熱心網友回復：

要顯示teams來自您的 api 請求，首先您需要創建一組結構模型來表示服務器正在發送的 json 資料。從服務器回應中，您需要提取teams要顯示的資訊。這是我的代碼，展示了如何做到這一點，對我來說效果很好，注意細節：

struct ContentView: View {
    @StateObject var network = Network() // <-- for testing

    var body: some View {
        List {
            VStack(alignment: .leading) {
                ForEach(network.teams) { team in
                    HStack(alignment:.top) {
                        Text("\(team.id)")
                        Text(team.name).bold()
                    }
                    .frame(width: 300, alignment: .leading)
                    .padding()
                    .background(Color(#colorLiteral(red: 0.6667672396, green: 0.7527905703, blue: 1, alpha: 0.2662717301)))
                    .cornerRadius(20)
                }
            }
        }
        .onAppear {
            network.getTeams()
        }
    }
    
}

class Network: ObservableObject {
    @Published var teams: [Team] = []
    
    func getTeams() {
        let token = "your-key"  // <--- here your api key

        guard let url = URL(string: "https://api-football-v1.p.rapidapi.com/v3/standings?season=2022&league=39") else { return }
        
        var request = URLRequest(url: url)
        request.httpMethod = "GET"
        request.setValue("\(token)", forHTTPHeaderField: "X-RapidAPI-Key")
        request.setValue("api-football-v1.p.rapidapi.com", forHTTPHeaderField: "X-RapidAPI-Host")
        
        URLSession.shared.dataTask(with: request) { data, response, error in
            guard let data = data else { return }
            DispatchQueue.main.async {
                do {
                    let results = try JSONDecoder().decode(FootyResponse.self, from: data)
                    // extract just the teams
                    for response in results.response {
                        for stand in response.league.standings {
                            for league in stand {
                                self.teams.append(league.team)
                            }
                        }
                    }
                } catch {
                    print(error) // <-- here important
                }
            }
        }.resume()
    }
  
}

// MARK: - FootyResponse
struct FootyResponse: Codable {
    let welcomeGet: String
    let parameters: Parameters
    let errors: [String]
    let results: Int
    let paging: Paging
    let response: [Response]

    enum CodingKeys: String, CodingKey {
        case welcomeGet = "get"
        case parameters, errors, results, paging, response
    }
}

// MARK: - Paging
struct Paging: Codable {
    let current, total: Int
}

// MARK: - Parameters
struct Parameters: Codable {
    let league, season: String
}

// MARK: - Response
struct Response: Codable {
    let league: League
}

// MARK: - League
struct League: Codable {
    let id: Int
    let name: String
    let country: String
    let logo: String
    let flag: String
    let season: Int
    let standings: [[Standing]]
}

// MARK: - Standing
struct Standing: Codable {
    let rank: Int
    let team: Team
    let points, goalsDiff: Int
    let group: String
    let form: String
    let status: String
    let standingDescription: String?
    let all, home, away: All
    let update: String  // <-- Date

    enum CodingKeys: String, CodingKey {
        case rank, team, points, goalsDiff, group, form, status
        case standingDescription = "description"
        case all, home, away, update
    }
}

// MARK: - All
struct All: Codable {
    let played, win, draw, lose: Int
    let goals: Goals
}

// MARK: - Goals
struct Goals: Codable {
    let goalsFor, against: Int

    enum CodingKeys: String, CodingKey {
        case goalsFor = "for"
        case against
    }
}

// MARK: - Team
struct Team: Identifiable, Codable {
    let id: Int
    let name: String
    let logo: String
}

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