如何使枚举可编码? [英] How do I make an enum codable?

问题描述

我在 struct 中嵌套了一个 enum，我希望它符合 Codable.如何使枚举 codable 从而使 struct 可编码?

I have a nested an enum inside a struct that I want to conform to Codable. How do I make the enum codable and therefore make the struct codable?

这是我所拥有的示例:

struct Person: Codable {
  var firstName: String
  var lastName: String 
  var favoriteColor: Color

  enum Color {
    case blue, red, green, yellow, pink, purple
  }
}

然后，我得到两个错误:

Then, I get two errors :

类型人"不符合协议可解码"

Type 'Person' does not conform to protocol 'Decodable'

类型人"不符合协议可编码"

Type 'Person' does not conform to protocol 'Encodable'

我该如何解决这个问题?

How can I fix this problem?

编辑

我也尝试过使 Color 符合 Codable.Xcode 添加了这些协议存根:

I have also tried conforming Color to Codable. Xcode adds these protocol stubs:

init(from decoder: Decoder) throws {
  <#code#>
}
func encode(to encoder: Encoder) throws {
  <#code#>
}

我该怎么办?

推荐答案

struct Person: Codable {
     var firstName: String
     var lastName: String
     var favoriteColor: Color
}

enum Color: String, Codable {
   case blue, red, green, yellow, pink, purple
}

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