swift - 如何在 SwiftUI 中检查 json 数据的键是否存在？

Question

标签： swiftswiftuiswift5xcode12

Answer 1

Make subtitle optional in model and use it conditionally in view, like

struct Post: Codable, Hashable{
    var id: Int
    var title: String
    var subtitle: String?     // << this !!
    var body: String
}

and somewhere in body:

VStack(alignment: .leading) {
  Text(data[index].title)
  if let subtitle = data[index].subtitle {
    Text(subtitle)
  }
}