如何从其他线程向VBox添加AnchorPane？

import javafx.application.Application;
import javafx.application.Platform;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.AnchorPane;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class AddAnchorPaneExample extends Application {

    @Override
    public void start(Stage primaryStage) {
        VBox vbox = new VBox();
        Scene scene = new Scene(vbox, 400, 400);
        primaryStage.setScene(scene);
        primaryStage.show();

        // 在其他线程中添加AnchorPane
        new Thread(() -> {
            try {
                Thread.sleep(2000); // 模拟耗时操作
            } catch (InterruptedException e) {
                e.printStackTrace();
            }

            Platform.runLater(() -> {
                AnchorPane anchorPane = new AnchorPane();
                Button button = new Button("Button");
                anchorPane.getChildren().add(button);
                vbox.getChildren().add(anchorPane);
            });
        }).start();
    }

    public static void main(String[] args) {
        launch(args);
    }
}