在没有EditMode的情况下，iPad上的SwiftUI拖放重新排序？

struct ContentView: View {
    @State private var items = ["Item 1", "Item 2", "Item 3", "Item 4"]
    @State private var draggedItem: String?
    
    var body: some View {
        List {
            ForEach(items, id: \.self) { item in
                Text(item)
                    .onDrag {
                        self.draggedItem = item
                        return NSItemProvider(object: NSString(string: item))
                    }
                    .onDrop(of: [UTType.text], delegate: self)
            }
        }
    }
}

extension ContentView: DropDelegate {
    func performDrop(info: DropInfo) -> Bool {
        let fromIndex = items.firstIndex(of: draggedItem!)
        let toIndex = items.firstIndex(of: info.itemProviders.first as! String)!
        
        items.move(fromOffsets: IndexSet(integer: fromIndex!), toOffset: toIndex)
        draggedItem = nil
        
        return true
    }
}