confirmationDialog crashes with Button.init(action, @ViewBuilder label)

Question

My app gets killed with the error message: Actions added to UIAlertController of style UIAlertActionStyleDefault must have a title when running in UIUserInterfaceIdiomPhone

if I use one sort of button, but not the shorter sort. This code produces the error, but it I remove the button with Image(systemName:) I get that error.

Button(action: { showingExtras = true } ) { 
   Image(systemName: "ellipsis.rectangle") 
}
  .confirmationDialog("Extras", isPresented: $showingExtras) {
    Button(action: { showingCashSummary = true} )  {
      Image(systemName: "banknote")
    }
    Button("Cash summary") { showingCashSummary = true }
    Button("Allocation summary") {showingAllocationSummary = true}
    Button("Export") { isExporting = true }
}

Is there some way to add the title that UIAlertController requires?

SwiftUI

526

Posted by

logistes

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Answer 1

Check the help for confirmationDialog. It states

On iOS, tvOS, and watchOS, confirmation dialogs only support controls with labels that are Text. Passing any other type of view results in the content being omitted.

Posted by

swiftuiforever

I did see that, but I don't automatically have a good idea of what it means. I'm used to declarative UI libraries like Cocoa and Delphi, where the views would be represented by objects of a class, and have a property "label" or "text" or whatever. The code for confirmation dialog could read that, but in SwiftUI, as we have here, the Button is a black box, so it is not clear how it can read the label string. It's a hidden requirement. Grrrr. I hate those.

—
logistes

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Answer 2

Check the help for confirmationDialog. It states

On iOS, tvOS, and watchOS, confirmation dialogs only support controls with labels that are Text. Passing any other type of view results in the content being omitted.

Posted by

swiftuiforever

I did see that, but I don't automatically have a good idea of what it means. I'm used to declarative UI libraries like Cocoa and Delphi, where the views would be represented by objects of a class, and have a property "label" or "text" or whatever. The code for confirmation dialog could read that, but in SwiftUI, as we have here, the Button is a black box, so it is not clear how it can read the label string. It's a hidden requirement. Grrrr. I hate those.

—
logistes

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confirmationDialog crashes with Button.init(action, @ViewBuilder label)

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