popover(isPresented:attachmentAnchor:arrowEdge:content:)

Declaration

nonisolated func popover<Content>(isPresented: Binding<Bool>, attachmentAnchor: PopoverAttachmentAnchor = .rect(.bounds), arrowEdge: Edge? = nil, @ViewBuilder content: @escaping () -> Content) -> some TabContent<Self.TabValue> where Content : View

Parameters

• isPresented:

  A binding to a Boolean value that determines whether to present the popover content that you return from the modifier’s content closure.

• attachmentAnchor:

  The positioning anchor that defines the attachment point of the popover. The default is Bounds.

• arrowEdge:

  The edge of the attachmentAnchor that defines the location of the popover’s arrow in macOS. The default is Top.

• content:

  A closure returning the content of the popover.

Discussion

Use this method to show a popover whose contents are a SwiftUI view that you provide when a bound Boolean variable is true. In the example below, a popover displays whenever the user toggles the isShowingPopover state variable by pressing the “Show Popover” button:

struct PopoverExample: View {
    @State private var isShowingPopover = false

    var body: some View {
        TabView {
            Tab("Popover Anchor", systemImage: "arrow.down") {
                Button("Show Popover") {
                    self.isShowingPopover = true
                }
            }
            .popover(isPresented: $isShowingPopover) {
                Text("Popover Content")
                    .padding()
            }
        }
    }
}