類型“PlayerData”不符合協議“Decodable”和“Encodable”

Question

class PlayerData包括一個 class Player數組，並將 PlayerData 的PlayerData保存到UserDefaults我確認它到可Codable協議。 但我有這些錯誤。

“類型‘PlayerData’不符合協議‘Decodable’”

import Foundation
import SwiftUI

class Player {
    var name: String
    var id: Int
    init(name: String, id: Int){
        self.name = name
        self.id = id
    }
}


class PlayerData: Codable {   // <- error here
    var latestId: Int
    var player: [Player] = []
    init(){
        latestId = 0
        player = []
    }
}


func savePlayers(data: PlayerData) {
    let encoder = JSONEncoder()
    if let encoded = try? encoder.encode(data) {
        UserDefaults.standard.set(encoded, forKey: "saved_data")
    }
}

func pullPlayers() -> PlayerData {
    if let data = UserDefaults.standard.object(forKey: "saved_data") as? Data {
        let decoder = JSONDecoder()
        if let savedData = try? decoder.decode(PlayerData.self, from: data) {
            return savedData
        }
    }
}

謝謝您的幫助：）

Answer 1

Player也應該符合

class Player : Codable {