Question

我有一个名为Principale.fxml的fxml文件，其中包含一个buton。当我点击它时，打开另一个舞台，并将一个BoxBlur效果添加到principale.fxml中的AnchorPane。所以当我关闭第二阶段时，我希望将此效果设置为null为此AnchorPane 这是我的代码：

principale.fxml

 info.addEventHandler(MouseEvent.MOUSE_CLICKED, new EventHandler<MouseEvent>() {
                @Override
                    public void handle(MouseEvent event) {
                        Parent home_page_p = FXMLLoader.load(getClass().getResource("/View/information.fxml"));

                        Scene home_page_s = new Scene (home_page_p);
                        javafx.scene.effect.BoxBlur bxb = new BoxBlur();
                       ancr.setEffect(bxb);

                        Stage stage = new Stage();
                        stage.initStyle(StageStyle.UNDECORATED);
                        stage.setScene(home_page_s);

                        stage.show();


                } catch (IOException ex) {
                    Logger.getLogger(PrincipaleController.class.getName()).log(Level.SEVERE, null, ex);
                }

当我执行时我得到了这个 http://i.stack.imgur.com/VAFqG.jpg

Information.fxml

public void closeApp(MouseEvent mv) throws IOException
    {
        app_stage = (Stage) close.getScene().getWindow();
        app_stage.hide();

        PrincipaleController pc = new PrincipaleController();
        pc.ancr.setEffect(null);
    }

http://i.stack.imgur.com/VAFqG.jpg

所以当我关闭信息窗口时我想将principale.fxml效果设置为null，我应该向closeapp方法添加什么？

Answer 1

您的代码存在多个问题。你不应该输入

Controller ctl = new Controller();

使用

从FXMLLoader中获取它

FXMLLoader loader = FXMLLoader.load(getClass().getResource("/View/information.fxml"));
Parent home_page_p = loader.load();
Controller ctl = loader.getController();

稍后使用它来创建一个新阶段：

Stage stage = new Stage();
stage.initStyle(StageStyle.UNDECORATED);
ctl.Glisse(home_page_p, stage, home_page_s);
stage.setScene(home_page_s);
// Adding a event handler to be fired on the event of stage being closed
stage.setOnCloseRequest((WindowEvent event) -> {
      // Perform some action when the stage is closed
      ancr.setEffect(null); // ancr is a reference to the anchorpane
}

注意：您不需要创建另一个PrincipaleController实例，因为以上所有代码都是在PrincipaleController class内编写的。

关闭另一个屏幕后改变achorpane效果

1 个答案: