在SwiftUI中将项目从一个列表拖到另一个列表

struct ContentView: View {
    @State private var sourceItems = ["Item 1", "Item 2", "Item 3"]
    @State private var targetItems: [String] = []

    var body: some View {
        VStack {
            List(sourceItems, id: \.self) { item in
                Text(item)
                    .onDrag {
                        return NSItemProvider(object: item as NSString)
                    }
            }
            .frame(width: 150, height: 200)
            .background(Color.gray.opacity(0.2))

            List(targetItems, id: \.self) { item in
                Text(item)
            }
            .frame(width: 150, height: 200)
            .background(Color.gray.opacity(0.2))
            .onDrop(of: [UTType.text], delegate: DropDelegate(onDrop: { providers, location in
                for provider in providers {
                    provider.loadObject(ofClass: NSString.self) { item, error in
                        if let item = item as? String {
                            DispatchQueue.main.async {
                                self.targetItems.append(item)
                            }
                        }
                    }
                }
                return true
            }))
        }
    }
}