# dialogSuppressionToggle(_:isSuppressed:) Enables user suppression of an alert with a custom suppression message. ``` @export(implementation) nonisolated func dialogSuppressionToggle(_ titleResource: LocalizedStringResource, isSuppressed: Binding) -> some Scene ``` ## Parameters `titleResource` The title of the suppression toggle in the dialog. This parameter can be elided to use the default suppression title. `isSuppressed` Whether the suppression toggle is on or off in the dialog. ## Discussion Applying dialog suppression adds a toggle to dialogs on macOS, which allows the user to request the alert not be displayed again. Typically whether a dialog is suppressed is stored in `AppStorage` and used to decide whether to present the dialog in the future. The following example configures an alert with a suppression toggle. The toggle’s state is stored in `AppStorage` and used to determine whether or not to show the dialog when the “Delete Items” button is pressed. ``` struct MyApp: App { @State private var isShowingDialog = false @AppStorage("suppressEraseItemAlert") private var suppressAlert = false var body: some Scene { Window(...) { Button("Delete items") { isShowingDialog = true } } AlertScene( "Are you sure you want to erase these items?", isPresented: $isShowingDialog ) { Button("Erase", role: .destructive) { // Handle item deletion. } Button("Cancel", role: .cancel) { // Handle cancellation } } .dialogSuppressionToggle( "Do not ask about erasing items again", isSuppressed: $suppressAlert) } } ``` --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)