类型“PlayerData”不符合协议“Decodable”和“Encodable”

Question

class PlayerData包括一个 class Player数组，并将 PlayerData 的PlayerData保存到UserDefaults我确认它到可Codable协议。 但我有这些错误。

“类型‘PlayerData’不符合协议‘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
        }
    }
}

谢谢您的帮助：）

Answer 1

Player也应该符合

class Player : Codable {