java - 如何在 JavaFX 中展开和折叠 TitledPane

Question

所以，这是我现在拥有的代码:

    SplitPane sp = new SplitPane();
    final StackPane sp1 = new StackPane();

    final Accordion accordion = new Accordion (); 

    TitledPane tp1 = new TitledPane();
    tp1.setText("First");
    TitledPane tp2 = new TitledPane();
    tp2.setText("Second");
    TitledPane tp3 = new TitledPane();
    tp3.setText("Third");

    accordion.getPanes().add(tp1);
    accordion.getPanes().add(tp2);
    accordion.getPanes().add(tp3);


    sp1.getChildren().add(accordion);

    final StackPane sp2 = new StackPane();
    sp.getItems().addAll( sp1 , sp2 );        
    double height = Screen.getPrimary().getVisualBounds().getHeight();
    double width = Screen.getPrimary().getVisualBounds().getWidth();
    Scene scene = new Scene( sp );
    primaryStage.setScene( scene );        
    primaryStage.setMaximized( true );
    primaryStage.setMinHeight( height );
    primaryStage.setMinWidth( width );        
    primaryStage.show();
    sp.setDividerPositions(0.3);

如您所见，我有一个 Accordion ，里面有三个 TitledPane。我想要的是，当用户单击 TitledPaned 时，它应该扩展到其父对象(在本例中为 Accordion )的完整高度。但我不知道该怎么做。这就是我现在拥有的:

请注意，在上图中，即使第一个面板被激活，它也不会展开。这就是我想要的:

(我手动创建了最后一张图片)。谢谢!

Answer 1

我认为，您需要调用setContent()方法。

示例:

        TextField firstNameFld = new TextField();
        firstNameFld.setPrefColumnCount(8);
        TextField lastNameFld = new TextField();
        lastNameFld.setPrefColumnCount(8);
        GridPane grid = new GridPane();
        grid.addRow(0, new Label("First Name:"), firstNameFld);
        grid.addRow(1, new Label("Last Name:"), lastNameFld); 
        tp1.setContent(grid);
        tp2.setContent(new Label("tp2............."));
        tp3.setContent(new Label("tp3.............."));