CODEWITHSUNDEEP
javafxfxmlloader
noctua
noctua

Reputation: 135

JavaFX - load FXML-file without FXLoader

I am experementing with the "new" JavaFX and it worked very well.

Now I am at a point which is incomprehensible for me. I have a Controller for my View and I want to load my Controller from a main-method so the controller can load a view or do whatever it likes.

My problem ist, that I have to load my FXML-File with the FXMLLoader.load() method. The FXMLLoader himselfe loads the controller. So in fact, with my method I will load the controller two times: I load the controller with XController xcontroller = new XController(); and inside that controller I load te view with the FXMLLoader.load() which will load the controller again.

do I have to use FXMLLoader or can I let my controller load the view with an other method?

edit I want to use the Presentation-Abstraction-Control (PAC) Pattern (variation of MVC), that's why I think it's importand to let the controller load the View.

the main class

    public class Main extends Application
    {

        Override
        public void start(Stage primaryStage)
        {
            LoginController loginController = null;
            try
            {
                loginController = new LoginController();
                loginController.loadSceneInto(primaryStage);

                primaryStage.show();
            }
            .......


        public static void main(String[] args)
        {
            launch(args);
        }
    }

the controller

    public class LoginController
    {

        .....
        public void loadSceneInto(Stage stage) throws IOException
        {
            this.stage  = stage;
            Scene scene = null;
            Pane  root  = null;

            try
            {
                root = FXMLLoader.load(
                        getClass().getResource(
                                this.initialView.getPath()
                        )
                );

                scene = new Scene(root, initialWidth, initialHeight);
                this.stage.setTitle(this.stageTitle);
                this.stage.setScene(scene);

                this.centralizeStage();
            }
            .....
        }
    }

Upvotes: 0

Views: 1297

Answers (1)

James_D
James_D

Reputation: 209358

If I understand correctly, instead of

    root = FXMLLoader.load(
            getClass().getResource(
                    this.initialView.getPath()
            )
    );

Just do

FXMLLoader loader = new FXMLLoader(
    getClass().getResource(this.initialView.getPath());
);
loader.setController(this);
root = loader.load();

You will need to remove the fx:controller attribute from the FXML file for this to work.

Upvotes: 2

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