参数类型“Spot.Restriction.Type”不符合预期的类型“_FormatSpecifiable”

Question

我试着找了几个小时的答案，但没有找到一个足够接近我的情况的答案，无法将其翻译过来。我正在尝试创建一个程序来从.json文件中拉出一个数组并读取它，这样我就可以过滤答案。感谢你能给我的任何见解或帮助。

import SwiftUI
import Foundation

struct Spot{

    enum Restriction: String {
        case breakfast, lunch, dinner
    }
    let restrictions: Set<Restriction>
}

extension Spot {
    init?(json: [String: Any]) {
        guard let restrictionsJSON = json["menu"] as? [String]
        else {
            return nil
        }

        var restrictions: Set<Restriction> = []
        for string in restrictionsJSON {
            guard let restriction = Restriction(rawValue: string) else {
                return nil
            }

            restrictions.insert(restriction)
        }

        self.restrictions = restrictions
    }
}

struct Filters: View {

    let filtersort = Spot.Restriction.self
    @State var showGreeting = false

    var body: some View {
        Form {
            Toggle(isOn: $showGreeting){
                Text("Show Welcome Message")
            }.padding()

            if showGreeting {
                Text("\(filtersort)")

            }
        }
    }
}

`

下面是我更新后的代码，其中包含与以前相同的错误消息。

    import SwiftUI
import Foundation

struct Spot: Decodable{

    var restrictions: [String: String]

    enum Restriction: String, CodingKey {
        case timeofyear
    }
}

extension Spot {
    init(from decoder: Decoder) throws {
        let values = try decoder.container(keyedBy: Restriction.self)
        _ = try values.decode(Double.self, forKey: .timeofyear)
    }
}

struct Filters: View {

    let filtersort = Spot.Restriction.timeofyear
    @State var showGreeting = false

    var body: some View {
        Form {
            Toggle(isOn: $showGreeting){
                Text("Show Welcome Message")
            }.padding()

            if showGreeting {
                Text("\(filtersort)") //Argument type 'Spot.Restriction' does not conform to expected type '_FormatSpecifiable'

            }
        }
    }
}

Answer 1

Xcode11.4提供了所需的修复程序。

Text(filtersort.rawValue)