如何使用DragGesture创建自己的ScrollView？

import SwiftUI
import Combine

class DragState: ObservableObject {
    @Published var translation: CGSize = .zero
    var dragOffset: CGSize = .zero
}

struct ContentView: View {
    @EnvironmentObject var dragState: DragState
    
    var body: some View {
        ScrollView {
            // 添加您的视图内容
        }
        .gesture(
            DragGesture()
                .updating($dragState.translation, body: { (value, state, _) in
                    state = value.translation
                })
                .onEnded({ (value) in
                    self.dragState.dragOffset.width += value.translation.width
                    self.dragState.dragOffset.height += value.translation.height
                    self.dragState.translation = .zero
                })
        )
    }
}

class SceneDelegate: UIResponder, UIWindowSceneDelegate {
    var window: UIWindow?
    var dragState = DragState()
    
    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
        let contentView = ContentView().environmentObject(dragState)
        
        // 窗口设置
        
        window.rootViewController = UIHostingController(rootView: contentView)
        self.window = window
        window.makeKeyAndVisible()
    }
}