Question

如果我们有Stage，则Scene包含2 Pane s 第一个Pane包含Button，第二个Pane为空我们可以在第二个Pane中加载其他fxml文件吗？

fxml1: VBox
               |_Pane1-->Button
               |_Pane2
///////////////
fxml2: Pane--> Welcome to fxml 2
"when we click the button load the fxml2 inside Pane2 of fxml1"

然后点击

====我终于在尝试后找到了这个作品！====谢谢你们

@FXML Pane secPane;
public void loadFxml (ActionEvent event) {
Pane newLoadedPane =        FXMLLoader.load(getClass().getResource("/application/fxml2.fxml"));
secPane.getChildren().add(newLoadedPane); 
}

Answer 1

我终于在尝试后发现了这个作品！

@FXML Pane secPane;
public void loadFxml (ActionEvent event)  {
  Pane newLoadedPane =  FXMLLoader.load(getClass().getResource("/application/fxml2.fxml"));
  secPane.getChildren().add(newLoadedPane);
}

Answer 2

只更换控制器类中的字段不会改变场景图。

secPane只是对场景图中节点的引用。

如果secPane只是一个占位符，您可以在父级子列表中替换它：

public void loadFxml (ActionEvent event) {
    // load new pane
    Pane newPane = FXMLLoader.load(getClass().getResource("/application/Login2.fxml"));

    // get children of parent of secPane (the VBox)
    List<Node> parentChildren = ((Pane)secPane.getParent()).getChildren();

    // replace the child that contained the old secPane
    parentChildren.set(parentChildren.indexOf(secPane), newPane);

    // store the new pane in the secPane field to allow replacing it the same way later
    secPane = newPane;
}

当然，假设getClass().getResource("/application/Login2.fxml")产生正确的资源并且不返回null（如果没有具有给定名称的资源可用，则会发生这种情况）

Answer 3

您可以实现以下内容：

 public void start(Stage primaryStage) throws IOException {
            primaryStage.setTitle("Title");
            primaryStage.setScene(createScene(loadMainPane("path_of_your_fxml")));
            primaryStage.show();

    }

    private Pane loadMainPane(String path) throws IOException {
        FXMLLoader loader = new FXMLLoader();

        Pane mainPane = (Pane) loader.load(
                getClass().getResourceAsStream(path));

        return mainPane;
    }


    private Scene createScene(Pane mainPane) {
        Scene scene = new Scene(mainPane);
      return scene;
    }

然后，您可以创建一个单独的类调用导航来存储所有fxml路径：

public class Navigator {

private final String P1;
private final String P2;
//then you can implement getters...
public String getP1() {
    return P1;
}

public String getP2() {
    return p2;
}

private static FxmlController Controller;

    public static void loadPane(String fxml) {
    try {
        FxmlController.setPane(
                (Node) FXMLLoader.load(Navigator.class.getResource(fxml)));
    } catch (IOException e) {
        e.printStackTrace();
    }
}

public Navigator() throws IOException {
    this.P1 = "p1.fxml";
    this.P2 = "p2.fxml";}

然后您可以在按钮中加载窗格，如下所示：

@FXML
    private void btnAction(ActionEvent event) throws IOException {
    Navigator.load(new Navigator().getP1());
    ..

如何在窗格内加载fxml文件？

3 个答案: