JavaFX - 关闭后自动显示警报框

Question

我想在关闭警告框后自动再次显示警告框，这是基于特定条件的。这是我的代码:

protected void showInputDialog()
{
    FXMLLoader loader = new FXMLLoader(getClass().getResource("AddRecordDialog.fxml"));
    Parent root = loader.load();
    Scene scene = new Scene(root);
    AddRecordDialogController addRecordDialogController = (AddRecordDialogController)loader.getController();
    addRecordDialogController.setAddNewSalesDialogController(this);
    addRecordDialogController.setInvoice(this.invoice);
    this.addRecordDialog = new Stage();
    this.addRecordDialog.setTitle("Add Record");
    this.addRecordDialog.initModality(Modality.APPLICATION_MODAL);
    this.addRecordDialog.initOwner(root.getScene().getWindow());
    this.addRecordDialog.setScene(scene);
    this.addRecordDialog.sizeToScene();
    this.addRecordDialog.setResizable(false);
    //Event handler for when a Window is closed.
    this.addRecordDialog.setOnHiding(new EventHandler<WindowEvent>()
    {
        @Override
        public void handle(WindowEvent we)
        {
            if(nextItem == true)
               showInputDialog();
            nextItem = false;
        }
    });
    this.addRecordDialog.showAndWait();
}

第二个对话框出现，但第一个对话框没有消失。该对话框是通过其他地方的 stage.close(); 以编程方式关闭的。我看到here您需要为以编程方式关闭事件调用 setOnHiding 方法。如果我删除事件处理程序，前一阶段将关闭。但我想在关闭后再次打开该阶段的新实例。请帮忙。

编辑: ...是的，我检查了 nextItem 变量，它是 true，

我使用了System.out.println("下一个项目:"+ nextItem);

Answer 1

基于kendavidson的评论，我找到了解决方案。我已将代码更改为:

        this.addRecordDialog.setOnHidden(new EventHandler<WindowEvent>()
        {
            @Override
            public void handle(WindowEvent we)
            {
                System.out.println("Next Item: " + nextItem);
                if(nextItem == true)
                {
                    nextItem = false;
                    showInputDialog();
                }
            }
        });

谢谢肯达维森。