动态JavaFX视图的控制器类

如果创建自定义javafx Node 作为一个 Bean 你可以 @Autowired 它是控制器,但是你必须添加一个 结点 代表你的习俗 结点 .

你有两种方法:

1. extends 你的班级 结点 (或继承人) 结点 )(看例子)

2. 下课回来 root-Node 其中包含其他节点

例子:

@Component
@Scope("prototype") //If you want to reuse component `@Scope("prototype")`
public class PartsView  extends GridPane{ 
  ...
  public void init(){
    getChildren().add(table);
  }

}

控制器应该看起来像:

public class TestController implements Initializable  {

  @FXML //StackPane as example
  private StackPane stackPane; //injecting before constructor, when you load .fxml
  @Autowired
  private PartsView partsView; //injecting when you load spring-context


  @Override
  public void initialize(URL location, ResourceBundle resources) {
    // initialize fields marked @FXML annotation.
    // method initialize triggering after constructor
  }
}

鬃毛的问题是你必须添加你的自定义 结点 初始化前的上下文 Controller . 你可以写 Configuration 解决它:

@Configuration
@ComponentScan({
    "you.node.packege",
 })
public class TestConfig{

@Lazy                                  //depends on your case
@Bean
@Scope(BeanDefinition.SCOPE_PROTOTYPE) //depends on your case
public ControlFx<TabPane, PlanningController> testViewFx() throws IOException {
    return loadView("/view/TestLayout.fxml");
}


    private <V extends Node, C extends Initializable> ControlFx<V,C> loadView(String url) throws IOException {
        FXMLLoader loader = new FXMLLoader();
        loader.setLocation(getClass().getResource(url));
        return  new ViewFx<>(loader.load(), loader.getController());
    }
 }

ControlFX类:

public class ControlFx<N extends Node ,C extends Initializable>  {
    private final N view;
    private final C controller;

    public ControlFx(N view, C controller) {
        this.view = view;
        this.controller = controller;
    }

    public N getView() {
        return view;
    }

    public C getController() {
        return controller;
    }

}

我在视图和控制器类中分离这个类,然后我将如何定义动作,让我们来保存按钮,以及如何访问控制器类中的表视图?

你可以写 facade -方法进入自定义类:

public  void setOnActionSaveButton(EventHandler<ActionEvent> value){
    save.setOnAction((ActionEvent e) -> {
        // Some logic
    }
}

我用代码生成所有视图,没有任何fxml文件。在那种情况下,它将如何工作?

使用 @Controller 注释(扩展 @Component 用 @PostConstruct 注释或使用 @自动售货机 使用构造函数(或任何 init 方式:

@Controller
public class TestController {

   private StackPane stackPane;
   // @Autowired
   private PartsView  partsView;

   @Autowired
   public TestController (PartsView  partsView){
      ...
      stackPane.getChildren().add(partsView)
   }

   // @PostConstruct
   // private void beanPostConstruct() {
   //     stackPane.getChildren().add(partsView);
   // }
}

在第二和第三段代码中,您提到了加载fxml文件,但我没有。

首先必须初始化spring上下文。我用过 AnnotationConfigApplicationContext :

public abstract class AbstractJavaFxApplication extends Application {

    private static String[] savedArgs;
    protected AnnotationConfigApplicationContext context;

    @Override
    public void init() {
        context =  new AnnotationConfigApplicationContext(configurations());
        context.getAutowireCapableBeanFactory().autowireBean(this);

    }

    @Override
    public void stop() throws Exception {
        super.stop();
        context.close();
    }

    protected static void launchApp(Class<? extends AbstractJavaFxApplication> clazz, String[] args) {
        AbstractJavaFxApplication.savedArgs = args;
        Application.launch(clazz, savedArgs);
    }

    protected abstract Class<?>[] configurations();
}

IMPL:

public class ReportApp extends AbstractJavaFxApplication {

    public final double PRIMARY_WINDOW_HEIGHT = 500;
    public final double PRIMARY_WINDOW_WIDTH = 500;

    @Value("${ui.title:JavaFX приложение}")
    private String windowTitle;

    @Autowired
    private RootLayoutController controller;

    @Override
    public void start(Stage stage) throws Exception {
        stage.setTitle(windowTitle);
        stage.setScene(
                new Scene(
                        controller.getPane(),
                        PRIMARY_WINDOW_WIDTH,
                        PRIMARY_WINDOW_HEIGHT
                )
        );
        stage.setResizable(true);
        stage.centerOnScreen();
        stage.show();
    }

    public static void main(String[] args) {
        launchApp(ReportApp.class, args);
    }

    @Override
    protected Class<?>[] configurations() {
        return new Class<?>[]{
            Config.class
        };
    }
}

配置:

@Configuration
@ComponentScan({"components", "controllers"})
public class Config {

    @Bean
    ...
}

控制器:

@Controller
public class RootLayoutController {

    private StackPane stackPane;
    @Autowired
    private PartsView partsView;

    @PostConstruct
    private void init(){
        stackPane = new StackPane();
        stackPane.getChildren().add(partsView);
    }

    public Pane getPane(){
        return stackPane;
    }        
}