ScrollPane删除节点时跳转到顶部

我有一个ScrollPane含有一个TilePane显示图像。每当我删除其中一张图像时ScrollPane跳回到顶部，这在尝试删除多个图像时非常烦人。有没有办法控制滚动行为？

我在 Windows 7 上运行此代码：

import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.ScrollPane;
import javafx.scene.image.ImageView;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.StackPane;
import javafx.scene.layout.TilePane;
import javafx.stage.Stage;

public class ScrollbarProblem extends Application{
    private TilePane imagePane;
    private ScrollPane scroller;

    @Override
    public void start(Stage primaryStage) {
        imagePane = new TilePane();
        scroller = new ScrollPane();
        scroller.setContent(imagePane);
        BorderPane root = new BorderPane(scroller, null, null, null, null);
        Scene scene = new Scene(root, 800, 600);
        primaryStage.setScene(scene);
        primaryStage.show();

        for(int i = 0; i < 20; i++){
            Image img = new Image("https://upload.wikimedia.org/wikipedia/commons/thumb/b/b6/SIPI_Jelly_Beans_4.1.07.tiff/lossy-page1-220px-SIPI_Jelly_Beans_4.1.07.tiff.jpg");
            final ImageView imageView = new ImageView(img);

            final Button button = new Button("Delete");
            final StackPane stackPane = new StackPane();

            button.setOnAction(new EventHandler<ActionEvent>() {

                @Override
                public void handle(ActionEvent event) {
                    imagePane.getChildren().remove(stackPane);
                }
            });

            stackPane.getChildren().addAll(imageView, button);
            imagePane.getChildren().add(stackPane);
        }
    }

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

ScrollPane确保重点突出Node显示在视口内。 AButton单击的内容具有焦点。这意味着焦点节点被删除，并且 JavaFX 尝试将焦点移动到该节点中的另一个节点。ScrollPane内容，在本例中是第一个Button. ScrollPane将此节点滚动到视图中，这解释了观察到的行为。

一个解决方案是设置focusTraversable每个人的财产Button to false.

Another option which would still allow you to change the focus via Tab would be overriding the onTraverse method of the ScrollPaneSkin, since this is the method responsible for this behavior:

scroller.setSkin(new ScrollPaneSkin(scroller) {

    @Override
    public void onTraverse(Node n, Bounds b) {
    }

});