Swift 在结构数组中解码嵌套的JSON REST Api响应

我试图将in的响应解析为

列表

，但由于嵌套的响应结构而不是扁平的响应，我似乎无法让它工作

这是我的

ContentView

：

struct ContentView: View {

    private let charactersURL = URL(string: "https://swapi.dev/api/people/")!

    @State private var characters: [Character] = []


    var body: some View {

        NavigationView {

            VStack {

                List {
                    ForEach(characters, id: \.self) { character in
                        NavigationLink(destination: CharacterView(character: character)) {
                            Text(character.name)
                        }
                    }
                }
                .onAppear(perform: loadCharacter)
            }
            .navigationBarTitle("Swapi Api Client")

        }

    }

    private func loadCharacter() {

        let request = URLRequest(url: charactersURL)
        URLSession.shared.dataTask(with: request) { data, response, error in
            if let data = data {
                if let charactersResponse = try? JSONDecoder().decode([Character].self, from: data.results) {
                    withAnimation {
                        self.characters = charactersResponse.results
                    }
                }
            }

        }.resume()
    }

}

我有一个

字符响应

结构：

struct CharactersResponse {
    let count: Int
    let next: String
    let previous: NSNull
    let results: [Character]
}

struct Character: Decodable, Hashable {
    let name: String
    let height: Int
    let mass: String
    let hairColor: String
    let skinColor: String
    let eyeColor: String
    let birthYear: String
    let gender: String
    let homeworld: String
    let films: [String]
    let species: [String]
    let vehicles : [String]
    let starships: [String]
    let created: String
    let edited: String
    let url: String
}

和

字符

结构：

struct CharactersResponse {
    let count: Int
    let next: String
    let previous: NSNull
    let results: [Character]
}

struct Character: Decodable, Hashable {
    let name: String
    let height: Int
    let mass: String
    let hairColor: String
    let skinColor: String
    let eyeColor: String
    let birthYear: String
    let gender: String
    let homeworld: String
    let films: [String]
    let species: [String]
    let vehicles : [String]
    let starships: [String]
    let created: String
    let edited: String
    let url: String
}

我得到的错误是，

类型“Data”的值没有成员“results”

，但我不确定如何修复它，以便将

字符响应

结果解析到

字符

结构的数组中

---

您将原始数据和反序列化结构混为一谈

替换

if let charactersResponse = try? JSONDecoder().decode([Character].self, from: data.results) { ...

与

并在

字符响应

struct CharactersResponse : Decodable { ...

您还可以将

NSNull

替换为预期类型的可选项

---

永远不要在

JSONDecoder

上下文中尝试？<代码>捕获潜在错误并打印它

do {   
    let charactersResponse = try JSONDecoder().decode(CharactersResponse.self, from: data) { ...

} catch { print(error) }

---

您需要使

CharactersResponse

可解码，并使用

jsondeconder（）对其进行解码。解码（CharactersResponse.self，

谢谢！如果我改为使用

do

我会在其自身初始值中使用

变量：
do{let CharactersResponse=try jsondeconder（）。解码（CharactersResponse.self，from:data）{withAnimation{self.characters=CharactersResponse.results}}}catch{print（error）}
我不熟悉SwiftUI。可能
withAnimation
表达式位于错误的位置