TextField and SecureTextField in Alerts

[johankool]

According to this answer on StackOverflow it is possible to show text fields in alerts since iOS 16.

.alert("Login", isPresented: $presentAlert, actions: {
  TextField("Username", text: $username)
  SecureField("Password", text: $password)
  Button("Login", action: {})
  Button("Cancel", role: .cancel, action: {})
}, message: {
  Text("Please enter your username and password.")
})

For the AlertState of TCA I suppose that maps to the AlertState.Button? I was trying to think how it would be possible to add support for that, but Action is way overloaded here, also ButtonAction already exist.

Trying to think what this may look like:

state.alert = AlertState(
  title: TextState("Login"),
  message: TextState("Please enter your username and password."),
  actions: [
    .text(TextState("Username"), text: state.username, action: .send(.usernameChanged)),
    .secureText(TextState("Password"), text: state.password, action: .send(.passwordChanged)),
    .cancel(TextState("Cancel")),
    .default(TextState("Login"), action: .send(.loginButtonTapped))
   ])

Does this make sense?

[stephencelis]

@johankool Interesting! We'd definitely be down to add support for this!

[johankool]

One downside is that this (using .text and .secureText as I suggested above) doesn't express things like adding view modifiers to have the proper keyboard and autocompletion etc.

TextField("Username", text: $username)
  .textContentType(.emailAddress)
  .keyboardType(.emailAddress)

[kamcma]

Asked the same question here, and sketched out a way to use PresentationState and PresentationAction in the reducer but fall back to vanilla SwiftUI in the view.

[stephencelis]

@Jeehut Using the vanilla APIs should work for this for now. We'd like to look into shipping better helpers for the more vanilla APIs based on @kamcma's discussion, but haven't gotten to it yet. We also have plans on getting TextFieldState into AlertState eventually, but need more time to explore it all.

[nmalevich]

Hi everyone!
Any updates?

[mbrandonw]

Hi @nmalevich, there are not any updates. We recommend just using the vanilla SwiftUI APIs.

[stephencelis]

@nmalevich We sketched out a possible implementation awhile ago here: pointfreeco/swift-navigation@main...text-field-state

That said we haven't had the time ourselves to bring it across the finish line. If you or someone else would like to give it a shot, we'd welcome a PR!