SwiftUI Optional TextField

Question

Can SwiftUI Text Fields work with optional Bindings? Currently this code:

struct SOTestView : View {
    @State var test: String? = \"Test\"

    var body: s         


        

Answer 1

True, at the moment TextField in SwiftUI can only be bound to String variables, not String?. But you can always define your own Binding like so:

import SwiftUI

struct SOTest: View {
    @State var text: String?

    var textBinding: Binding {
        Binding(
            get: {
                return self.text ?? ""
        },
            set: { newString in
                self.text = newString
        })
    }

    var body: some View {
        TextField("Enter a string", text: textBinding)
    }
}

Basically, you bind the TextField text value to this new Binding binding, and the binding redirects it to your String? @State variable.