Custom scroll layouts with swipe actions in SwiftUI on iOS 27
Before iOS 27, swipeActions(edge:allowsFullSwipe:content:) only worked on rows inside a List. Applying it to views in a LazyVStack, a LazyVGrid, or a custom layout had no effect. iOS 27 removes that restriction with a new modifier, swipeActionsContainer(), that activates swipe action support for any container inside a scroll view.
We have to apply the new swipeActionsContainer() modifier directly to the ScrollView and then add swipeActions(edge:allowsFullSwipe:content:) to each row inside it.
struct TaskListView: View {
@State private var tasks: [Task] = Task.samples
var body: some View {
ScrollView {
LazyVStack {
ForEach(tasks) { task in
TaskRow(task: task)
.swipeActions(edge: .leading) {
Button {
complete(task)
} label: {
Label("Complete", systemImage: "checkmark")
}
.tint(.green)
}
.swipeActions(edge: .trailing) {
Button(role: .destructive) {
delete(task)
} label: {
Label("Delete", systemImage: "trash")
}
}
}
}
}
.swipeActionsContainer()
}
func complete(_ task: Task) {
guard let index = tasks.firstIndex(where: { $0.id == task.id })
else { return }
tasks[index].isCompleted = true
}
func delete(_ task: Task) {
tasks.removeAll { $0.id == task.id }
}
}
The swipeActionsContainer() modifier coordinates swipe behavior across the container: only one row's actions can be revealed at a time, scrolling dismisses any open actions, and tapping outside the active row does too.
Adding swipeActionsContainer() to a ScrollView also works with LazyVGrid and custom Layout types inside it, though whether swipe actions are appropriate depends on the specific layout and how items are presented.
In addition to the new container support, iOS 27 adds a new overload swipeActions(edge:allowsFullSwipe:content:onPresentationChanged:) that calls a closure whenever a row's actions are revealed or dismissed.
TaskRow(task: task)
.swipeActions(edge: .trailing) {
Button(role: .destructive) {
delete(task)
} label: {
Label("Delete", systemImage: "trash")
}
} onPresentationChanged: { isPresented in
// Keep track of which task has actions open
activeTaskID = isPresented ? task.id : nil
}
Both swipeActionsContainer() and the onPresentationChanged overload require iOS 27. Apps supporting earlier OS versions need to gate these APIs with #available.
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