# fullScreenCover(item:onDismiss:content:) Presents a modal view that covers as much of the screen as possible using the binding you provide as a data source for the sheet’s content. ``` nonisolated func fullScreenCover(item: Binding, onDismiss: (() -> Void)? = nil, @ContentBuilder content: @escaping (Item) -> Content) -> some View where Item : Identifiable, Content : View ``` ## Parameters `item` A binding to an optional source of truth for the sheet. When `item` is non-`nil`, the system passes the contents to the modifier’s closure. You display this content in a sheet that you create that the system displays to the user. If `item` changes, the system dismisses the currently displayed sheet and replaces it with a new one using the same process. `onDismiss` The closure to execute when dismissing the modal view. `content` A closure returning the content of the modal view. ## Discussion Use this method to display a modal view that covers as much of the screen as possible. In the example below a custom structure — `CoverData` — provides data for the full-screen view to display in the `content` closure when the user clicks or taps the “Present Full-Screen Cover With Data” button: ``` struct FullScreenCoverItemOnDismissContent: View { @State private var coverData: CoverData? var body: some View { Button("Present Full-Screen Cover With Data") { coverData = CoverData(body: "Custom Data") } .fullScreenCover(item: $coverData, onDismiss: didDismiss) { details in VStack(spacing: 20) { Text("\(details.body)") } .onTapGesture { coverData = nil } } } func didDismiss() { // Handle the dismissing action. } } struct CoverData: Identifiable { var id: String { return body } let body: String } ```  --- 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)