Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
Enum to list example
import SwiftUI
public enum Enum1: Int, Codable, CaseIterable, CustomStringConvertible {
public var description: String {
return "\(rawValue)"
}
case one, two, three
}
public enum Enum2: String, Codable, CaseIterable, CustomStringConvertible {
public var description: String {
return "\(rawValue)"
}
case a, b, c
}
struct ContentView: View {
@State private var enum1 = ""
@State private var enum2 = ""
var body: some View {
NavigationView {
Form {
Section(header: Text("Using extension")) {
Picker("enum1", selection: $enum1) {
List { Enum1.toForEach() }
}
Picker("enum2", selection: $enum2) {
List { Enum2.toForEach() }
}
}
Section(header: Text("Not using extension")) {
Picker("enum1", selection: $enum1) {
List { ForEach(Enum1.allCases, id: \.description) { o in Text(o.description) } }
}
Picker("enum2", selection: $enum2) {
List { ForEach(Enum2.allCases, id: \.description) { o in Text(o.description) } }
}
}
}
}
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView()
}
}
extension CaseIterable where Self.AllCases: RandomAccessCollection, Self: Hashable & CustomStringConvertible {
static func toForEach() -> some View {
ForEach(Self.allCases, id: \.self) { o in
Text(o.description).tag(o)
}
}
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment