问只有iOS 15的视图修饰符会在iOS 14上造成崩溃，即使它是可用的(iOS 15.0，*)

EN

@ViewBuilder
private func getRoutineCard(routine: RoutineInfo) -> some View {
    if #available(iOS 15.0, *) {
        newRoutineCard(routine: routine)
    } else {
        oldRoutineCard(routine: routine)
    }
}

@available(iOS 15.0, *)
@ViewBuilder
private func newRoutineCard(routine: RoutineInfo) -> some View {
    RoutineCard(routine: routine)
    // This modifier is what crashes the app on iOS 14.x
    // onDrag with a drag preview view not available in iOS 14.x
        .onDrag({
            dragReorder(draggedRoutine: routine)
        }, preview: {
            RoutineCardDragPreview(routine: routine)
        })
        .onDrop(of: [.text], delegate: ReorderDropDelegate(isDragging: $isDragging, draggedItem: $draggedItem, item: routine, haptics: haptics, onMove: updateOrder(routine:order:)))
}

@ViewBuilder
private func oldRoutineCard(routine: RoutineInfo) -> some View {
    RoutineCard(routine: routine)
        .onDrag { dragReorder(draggedRoutine: routine) }
        .onDrop(of: [.text], delegate: ReorderDropDelegate(isDragging: $isDragging, draggedItem: $draggedItem, item: routine, haptics: haptics, onMove: updateOrder(routine:order:)))
}