Question

我有带有自定义数据的JSON文件。目标是要在PostCard()的{{1}}中使用此数据。但是在evetytime时，我尝试在内部使用ForEach(){}，但在VStack 中收到此错误，无法推断复杂的闭包返回类型；添加显式类型以消除歧义。

我的JSON转换器功能如下：

user

自定义数据类型：

let userResponse: [UserResponse] = load("users.json")



func load<T: Decodable>(_ filename: String, as type: T.Type = T.self) -> T {
    let data: Data

    guard let file = Bundle.main.url(forResource: filename, withExtension: nil)
        else {
            fatalError("Couldn't find \(filename) in main bundle.")
    }

    do {
        data = try Data(contentsOf: file)
    } catch {
        fatalError("Couldn't load \(filename) from main bundle:\n\(error)")
    }

    do {
        let decoder = JSONDecoder()
        return try decoder.decode(T.self, from: data)
    } catch {
        fatalError("Couldn't parse \(filename) as \(T.self):\n\(error)")
    }
}

我在子视图中对其进行了初始化：

struct UserResponse: Hashable, Codable, Identifiable {
   public var id: Int
   public var username: String
   public var avatar: String
   public var postOne: String
   public var postTwo: String
   public var postThree: String
   public var postFour: String
   public var story: String
   public var likes: Int
   public var commentNumber: Int
   public var location: String
   public var comment: String
   public var name: String
   public var followers: Int
   public var following: Int
   public var postNumbers: Int
   public var bio: String
   public var locationPic: String
}

var user : UserResponse

我的ZStack{ VStack{ ForEach(userResponse){user in HStack(alignment: .center, spacing: 5){ PostCard(user: user) .padding(EdgeInsets(top: 0, leading: 5, bottom: 0, trailing: 0)) PostCard(user: user) .padding(EdgeInsets(top: 0, leading: 0, bottom: 0, trailing: 5)) }.shadow(color: Color("greySec"), radius: 3, x: 0, y: 0) } }.navigationBarTitle(Text(""), displayMode: .inline) .navigationBarHidden(true) }结构如下：

PostCard

var user : UserResponse

问题：是否有人知道如何在VStack(spacing: 10){ HStack(spacing: 5){ VStack(spacing: 10){ Image(user.postOne) .resizable().frame(height: 290) HStack{ Text(user.comment) .font(.system(size: 12, weight: .medium)) .padding(EdgeInsets(top: 0, leading: 5, bottom: 0, trailing: 5)) } } .background(Color("whiteAndBlack")) .cornerRadius(5) .foregroundColor(.black) } }内使用JSON数据？我的目标是为每个明信片使用各种JSON数据创建此视图。

如何在ForEach SwiftUI中使用来自JSON的自定义数据

0 个答案: