SOLVED: Select value of array and pass it to another view by NavigationLink

@gfmolon

May '21

I have a view with an array:

@State private var categoria = [
        "Acessórios para Veículos",
        "Agro",
        "Alimentos e Bebidas",
        "Animais",

and a foreach loop

   ForEach(categoria, id: \.self) { categoria in
                        NavigationLink(destination: Destino(categoria: self.$categoria)) {
                            Text(categoria)
                        }

in other view (Destino) i want to receive the categoria of selected by user.

i try @Binding var categoria: [String]

 ForEach(viewModel2.anuncios.filter({ "\($0)".contains(categoria[0]) })) { anuncio in
                ClassRowView(anuncio:anuncio)
            }

But i neet to use [0] and i dont have the exact array that the user selected. Can u help me? how i can pass the correct value in contains(categoria) ?

Thanks!!

@NigelGee HWS+

May '21

Think you are get confused with your namings

Your array is

@State private var categories = [
        "Acessórios para Veículos",
        "Agro",
        "Alimentos e Bebidas",
        "Animais",
]

So when you create the ForEach in the view

ForEach(categories, id: \.self) { category in // <- this line select one from the array above
  NavigationLink(destination: DestinoView(category: category)) {  // <- this pass the selected string from array
      Text(category) // <- this display the selected string from array
  }
}

so in the DestinoView you just need

let category: String

if you want to pass the whole array to the DestinoView then you do not need the ForEach put let categories: [String] in it and then you can do ForEach in this view.

You use @Binding when you want to pass back the the orginal view.

@Binding var categories: [String]

and in the orginal view have

NavigationLink(destination: DestinoView(categories: $categories)) {
    Text("Next View")
}

Hope that is clear because I was not sure what you were trying to get!

@gfmolon

May '21

I Love you thanks!

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