SwiftUI：在 macOS 12 Monterey 上更改了通过粘贴板拖动？

如何解决SwiftUI：在 macOS 12 Monterey 上更改了通过粘贴板拖动？

我正在尝试在 SwiftUI 中对 NSTextView 执行基本的拖放操作，但在 macOS 12 beta 中发生了一些变化，虽然此代码在 macOS 11 上运行良好，但它不再起作用：

var body: some View {
        vstack {
            ActionControl()
                .padding()
                .onDrag { () -> NSItemProvider in
                    let value = Action(string: "hello,world").string
                    let p = ActionProfile(value: value)
                    return NSItemProvider(item: p,typeIdentifier: ActionProfile.pasteboardType)
                }
            
            MyTextView()
                .padding()
        }
    }

class ActionProfile: NSObject,NSCoding,NSSecureCoding {
    static var supportsSecureCoding: Bool = true
    static var pasteboardType = "com.my.app.action.profile"
    
    @objc var rawValue: String
    
    func encode(with aCoder: NSCoder) {
        aCoder.encode(rawValue,forKey: "value")
    }
    
    required init(value: String) {
        self.rawValue = value
    }
    
    required init?(coder aDecoder: NSCoder) {
        self.rawValue = aDecoder.decodeObject(of: Nsstring.self,forKey: "value")! as String
    }
    
    required init?(pasteboardPropertyList propertyList: Any,ofType type: NSPasteboard.PasteboardType) {
        return nil
    }
}


extension ActionProfile: NSPasteboardWriting,NSPasteboardReading {
    static var nsPasteboardType: NSPasteboard.PasteboardType = .init(pasteboardType)
    
    static func readingOptions(forType type: NSPasteboard.PasteboardType,pasteboard: NSPasteboard) -> NSPasteboard.ReadingOptions {
        return .asKeyedArchive
    }
    
    func writableTypes(for pasteboard: NSPasteboard) -> [NSPasteboard.PasteboardType] {
        return [ActionProfile.nsPasteboardType]
    }
    
    
    func pasteboardPropertyList(forType type: NSPasteboard.PasteboardType) -> Any? {
        if type == ActionProfile.nsPasteboardType {
            return try! NSKeyedArchiver.archivedData(withRootObject: self,requiringSecureCoding: false)
        }
        return nil
    }
    
    static func readableTypes(for pasteboard: NSPasteboard) -> [NSPasteboard.PasteboardType] {
        return [ActionProfile.nsPasteboardType]
    }
}

extension MyTextViewControl {
    override internal var writablePasteboardTypes: [NSPasteboard.PasteboardType] {
        return [ActionProfile.nsPasteboardType] + super.writablePasteboardTypes
    }

    
    override func prepareForDragOperation(_ sender: NSDraggingInfo) -> Bool {
        return true
    }
    
    
    override func draggingUpdated(_ sender: NSDraggingInfo) -> NSDragOperation {
        let location = self.characterIndexForInsertion(at: self.convert(sender.draggingLocation,from: nil))
        self.setSelectedRange(NSRange(location: location,length: 0))

        return sender.draggingSource is MyTextViewControl ? .move : .copy
    }
    
    
    override func performDragOperation(_ sender: NSDraggingInfo) -> Bool {
        let pboard = sender.draggingPasteboard

        if pboard.availableType(from: [ActionProfile.nsPasteboardType]) == ActionProfile.nsPasteboardType {
            if let profiles = pboard.readobjects(forClasses: [ActionProfile.self],options: nil) as? [ActionProfile],!profiles.isEmpty {
                let alert = NSAlert()
                alert.messageText = "WORKS"
                alert.runModal()
                return true
            }
            else {
                let alert = NSAlert()
                alert.messageText = "Failed"
                alert.runModal()
                return super.performDragOperation(sender)
            }
        }
        return super.performDragOperation(sender)
    }
}

在 macOS 12 beta 上，调用 pboard.readobjects(...) 时，尝试将项目拖入 NSTextView 时出现此错误：

Failed to initialize keyed unarchiver for pasteboard data: Error Domain=NSCocoaErrorDomain Code=4864 "*** -[NSKeyedUnarchiver _initForReadingFromData:error:throwLegacyExceptions:]: data is empty; did you forget to send -finishEncoding to the NSKeyedArchiver?" UserInfo={NSDebugDescription=*** -[NSKeyedUnarchiver _initForReadingFromData:error:throwLegacyExceptions:]: data is empty; did you forget to send -finishEncoding to the NSKeyedArchiver?}

我注意到 supportsSecureCoding 和 encode(with aCoder: NSCoder) 都不是 macOS 12，而是在 macOS 11 上。

macOS 12 中是否有关于 NSCoding 或 NSSecureCoding 的任何更改，或者这只是一个错误？