JavaFX将FXML添加到普通的Java控制器中

Question

My first post, be gentle please.

I am making a JavaFX GUI for a simple game. I have an FXML layout loaded via FXML file loader here:

Parent root = FXMLLoader.load(getClass().getResource("sample.fxml"));

Then I create a button in Main.java:

Button button = new Button("Jp", view);

And in order to display:

primaryStage.setScene(new Scene(root));
primaryStage.show();

Question: How on earth I can combine FXML layout and plain java Button object to be on the same scene ? Is it like apples and oranges, impossible to combine ? My IDE is not letting me invoke the method recomended from java docs:

root.getChildren().add();

and so on...

Please help me and/or point me in some direction, I really tried...

Answer 1

The getChildren() method defined in Parent is a protected method: therefore you cannot access it from your Main class, which is why your code won't compile.

Pane overrides this method and makes it public , so assuming the root element of your FXML file is a Pane (or subclass of Pane ), you just need to be more specific about the type of root. In other words, again assuming your FXML is as I expect, change

Parent root = FXMLLoader.load(getClass().getResource("sample.fxml"));

to

Pane root = FXMLLoader.load(getClass().getResource("sample.fxml"));