我在 swing 组件内使用 jfxPanel 创建了一个应用程序。我面临的问题是我无法更改 fxml 文件。当单击 fxml 的按钮时,我想处理该 fxml 并在那里加载另一个 fxml 文件。
这就是我到目前为止所做的
public class NonResponsiveButtons extends JFrame {
NonResponsiveButtons nrb;
BottomPanelIncomingController bpic;
JPanel panel;
JPanel bPanel;
private int applicationWidth_600 = 600;
private int applicationHeight_600 = 600;
private int upperPanelHeight_535 = 535;
private int bottomPanelHeight_65 = (applicationHeight_600-upperPanelHeight_535);
public static void main(String[] args) {
new NonResponsiveButtons();
}
public NonResponsiveButtons(){
final JFXPanel fxPanel = new JFXPanel();
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
try{
new JFXPanel();
add(getJPanel(), BorderLayout.CENTER);
add(getJBottomPanel(), BorderLayout.PAGE_END);
bPanel.add(fxPanel, BorderLayout.CENTER);
Platform.runLater((new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
initFX(fxPanel);
}
})) ;
}
catch(Exception e){
System.out.println("Error in swing utilities thread :" + e.getMessage());
}
}
});
this.setSize(applicationWidth_600, applicationHeight_600);
setLocationRelativeTo(null);
BorderLayout borderLayout = new BorderLayout();
setLayout(borderLayout);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
}
private void initFX(JFXPanel jfxPanel) {
try {
FXMLLoader fxmlLoader = new FXMLLoader(getClass().getResource("fxmlDesign.fxml"));
Parent root = (Parent) fxmlLoader.load();
Scene scene = new Scene(root, 600, 65);
jfxPanel.setScene(scene);
fxmlLoader.getController();
bpic = new BottomPanelIncomingController();
bpic.setNonResoinsiveButtons(this);
} catch (IOException exc) {
exc.printStackTrace();
System.exit(1);
}
}
public void loadSecondFxml(){
System.out.println("loading second fxml");
}
private JPanel getJPanel(){
if(panel == null){
panel = new JPanel();
panel.setSize(applicationWidth_600,upperPanelHeight_535);
panel.setBackground(Color.gray);
}
return panel;
}
private JPanel getJBottomPanel(){
if(bPanel == null){
bPanel = new JPanel();
bPanel.setSize(applicationWidth_600, bottomPanelHeight_65);
bPanel.setBackground(new Color(8, 16, 19));
}
return bPanel;
}
}
BottomPanelIncommingController 类。 fxml 控制器
public class BottomPanelIncomingController implements Initializable {
NonResponsiveButtons nrb;
@Override
public void initialize(URL arg0, ResourceBundle arg1) {
// TODO Auto-generated method stub
System.out.println("HEllo");
}
public void setNonResoinsiveButtons(NonResponsiveButtons nrb){
this.nrb = nrb;
}
@FXML
public void callAccepted(ActionEvent event){
System.out.println("From controller");
nrb.loadSecondFxml();
}
}
你永远不应该实例化控制器new
当您使用 FXML 时,因为实例化控制器的工作是由 FXMLLoader 完成的。在实例化控制器时,它还会创建 FXML 中的节点实例并将它们注入到控制器中。
如果您没有从 FMXLLoader 获取控制器实例,则控制器内所有带有注释的节点@FXML
将为空。因此,您必须始终从 fxml 中获取控制器。
在你的情况下,你应该使用
bpic = fxmlLoader.getController();
代替
bpic = new BottomPanelIncomingController();
Update
单击按钮即可更改 FXML
让我们考虑在单击按钮时调用以下方法
@FXML
public void callAccepted(ActionEvent event){
System.out.println("From controller");
nrb.loadSecondFxml();
}
您可以加载 FXML 并将其设置在场景上,然后设置到JFXPanel
public void loadSecondFxml(){
//Load new FXML and assign it to scene
FXMLLoader fxmlLoader = new FXMLLoader(getClass().getResource("newFXML.fxml"));
Parent root = (Parent) fxmlLoader.load();
Scene scene = new Scene(root, 600, 65);
jfxPanel.setScene(scene);
}
Note :我不确定你想在这里实现什么,将此作为一个例子只是为了单击按钮即可加载 FXML并运用你的逻辑。
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