Area
SwiftUI → Presentation / ConfirmationDialog
Summary
After building with Xcode 27 beta, confirmationDialog presented from a row inside a List that is embedded in a .sheet is no longer anchored to the row that triggered it. Instead, the dialog is displayed near the top of the sheet when the sheet is partially expanded, or in the center of the screen when the sheet occupies the full height. This behavior is reproducible across all tested Xcode 27 beta releases and iOS 27 beta releases (Beta 1, Beta 2, and Beta 3).
Steps to Reproduce
Present a SwiftUI .sheet. Place a List inside the sheet. Add a confirmationDialog to each list row. Trigger the dialog from a swipe action on any row. Observe the position where the confirmation dialog appears. A minimal reproducible sample project is attached.
Expected Result
The confirmationDialog should be visually associated with the row that triggered it, as it behaved in previous Xcode and iOS releases. The dialog should appear anchored to the selected list row (or as close as the platform allows), providing clear contextual feedback to the user about which item is being acted upon.
Actual Result
The dialog is no longer associated with the selected row. When the sheet is not fully expanded, the dialog appears near the top area of the sheet, seemingly positioned relative to the sheet itself rather than the triggering row. When the sheet is expanded to full height, the dialog appears in the center of the screen. As a result, the relationship between the selected item and the confirmation dialog is lost, creating a confusing user experience.
Regression
Yes. The same implementation behaved correctly in previous Xcode and iOS versions. The issue first appeared after upgrading to Xcode 27 beta and remains present in all tested iOS 27 beta releases (Beta 1–3).
Impact
This is a significant UX regression for existing applications that rely on contextual confirmation dialogs within lists presented inside sheets. Applications that already have production users cannot easily redesign their interaction model to compensate for this behavior change. The previous behavior provided clear context about which list item was being acted upon, while the current behavior makes that association unclear.
Configuration
Xcode 27 Beta (all tested beta versions) iOS 27 Beta 1 iOS 27 Beta 2 iOS 27 Beta 3 Reproduced on physical devices Reproduced using the attached minimal sample project
Attachments
Minimal reproducible sample project. Screenshot showing expected behavior (prior implementation). Screenshot showing current behavior on iOS 27 Beta 3. Screen recording demonstrating the regression.
struct ContentView: View {
@State private var sheetIsPresented = false
@State private var itemPendingDeletion: Int? = nil
var array = Array(0...100)
var body: some View {
VStack {
Text("Hello, world!")
Button("Show List") {
sheetIsPresented = true
}
}
.sheet(isPresented: $sheetIsPresented) {
List {
ForEach(array, id: \.self) { value in
ListRow(for: value)
.confirmationDialog("Delete?", isPresented: Binding(
get: { itemPendingDeletion == value },
set: { isPresented in
if !isPresented { itemPendingDeletion = nil }
}
)
) {
Button {
} label: {
Text("Delete")
}
}
.swipeActions(edge: .trailing) {
Button {
itemPendingDeletion = value
} label: {
Image(systemName: "trash")
.foregroundStyle(.red)
}
}
}
.listRowInsets(EdgeInsets())
.listRowBackground(Color.clear)
}
.listStyle(.inset)
.contentMargins(16, for: .scrollContent)
.presentationDetents([.fraction(1), .fraction(0.9)])
}
}
@ViewBuilder
private func ListRow(for value: Int) -> some View {
Text("\(value)")
.foregroundStyle(.primary)
.padding(.vertical)
.frame(maxWidth: .infinity)
.background(
RoundedRectangle(cornerRadius: 26, style: .continuous)
)
.padding(.vertical, 2)
}
}
#Preview { ContentView() }
Xcode 27(Beta 1,2,3)
Xcode 26.5