Why your code does not work The loader creates a new AnchorPane, but you never add the new pane to a parent in the scene graph. Quick Fix Instead of: content = (AnchorPane) FXMLLoader.load(“vista2.fxml”); Write: content.getChildren().setAll(FXMLLoader.load(“vista2.fxml”)); Replacing the content children with your new vista. The content itself remains in the scene graph, so when you … Read more
Generic Resource Lookup Information This answer discusses FXML location lookup, which is really just a subset of the generic resource lookup task in Java. The resource location is passed by the calling program as input to the FXMLLoader, so the resource lookup itself is part of your calling application code and not the FXMLLoader. For … Read more
The default behavior of the FXMLLoader is to create a new instance of the controller class and use that instance as the controller. Specifically, the FXMLLoader does something like: Read the root FXML element. If the root FXML element has a fx:controller attribute, then If a controller already exists, throw an exception, otherwise create an … Read more
You can get the controller from the FXMLLoader FXMLLoader fxmlLoader = new FXMLLoader(); Pane p = fxmlLoader.load(getClass().getResource(“foo.fxml”).openStream()); FooController fooController = (FooController) fxmlLoader.getController(); store it in your main stage and provide getFooController() getter method. From other classes or stages, every time when you need to refresh the loaded “foo.fxml” page, ask it from its controller: getFooController().updatePage(strData); … Read more
Using MVC Most of this answer focuses on a direct call to pass a parameter from a calling class to the controller. If instead, you want to decouple the caller and controller and use a more general architecture involving a model class with settable and listenable properties to achieve inter-controller communication, see the following basic … Read more