JavaFX : Adding a new node to Scene in java code when Scene is initially loaded from FXML

Question

How can I add a new node to the Scene in java code when Scene is initially loaded from FXML ? I have loaded from FXML as shown below

Parent root = FXMLLoader         


        

Answer 1

I do not know the reason behind your question. If what you want is to insert some nodes dynamically during the application or scene initialization, I suggest you use a initialize method at your controller.

This method must be annotated with @FXML and have the following signature:

void initialize()

Then, you can inject the container where the button must be inserted on the controller and add the button to it:

@FXML
HBox buttonBox // assuming your button container is a HBox
...

@FXML
protected void initialize() {
    buttonBox.getChildren().add(new Button("Click me!"));
}

The method initialize is called after the components defined at the FXML file were built.