如何在swiftUI中显示JSON数据

import SwiftUI

struct ContentView: View {
    @StateObject var viewModel = JSONViewModel()

    var body: some View {
        List(viewModel.items, id: \.id) { item in
            VStack(alignment: .leading) {
                Text(item.title)
                    .font(.headline)
                Text(item.description)
                    .font(.subheadline)
            }
        }
        .onAppear {
            viewModel.fetchData()
        }
    }
}

struct Item: Codable, Identifiable {
    let id: Int
    let title: String
    let description: String
}

class JSONViewModel: ObservableObject {
    @Published var items: [Item] = []

    func fetchData() {
        guard let url = URL(string: "https://example.com/data.json") else {
            return
        }

        URLSession.shared.dataTask(with: url) { data, _, error in
            if let error = error {
                print("Error: \(error.localizedDescription)")
                return
            }

            if let data = data {
                do {
                    let decoder = JSONDecoder()
                    self.items = try decoder.decode([Item].self, from: data)
                } catch {
                    print("Error decoding JSON: \(error.localizedDescription)")
                }
            }
        }.resume()
    }
}