CODEWITHSUNDEEP
javajavafx
Ben
Ben

Reputation: 903

How to Pass Values to Window in JavaFX

I am trying to pass a stored preference value to a text box in a settings window that can be opened from a user login window. I am planning to do this by setting the value in the controller prior to open. As you can see, I am also trying to make the settings window a child of the login window. However, I am getting javafx.scene.layout.AnchorPane cannot be cast to javafx.fxml.FXMLLoader for reasons that I don't understand and am completely at a loss as to what to do.

My code for opening the settings window on the press of a button is as follows:

@FXML
void OpenSettingsWindow(ActionEvent event) {

    try {
        FXMLLoader fxmlLoader = new FXMLLoader();
        fxmlLoader = FXMLLoader.load(SettingsWindowController.class
                .getResource("Settings.fxml"));
        AnchorPane page = (AnchorPane) FXMLLoader.load(SettingsWindowController.class
                .getResource("Settings.fxml"));
        Scene scene = new Scene(page);
        root = new Stage();

        root.initModality(Modality.WINDOW_MODAL);
        root.initOwner(Main.primaryStage);
        root.setScene(scene);
        SettingsWindowController controller = fxmlLoader.getController();
        String databaseAddressValue = "databaseAddressValue";
        controller.setDatabaseAddressValue(Preferences
            .systemRoot()
            .node("preferences.SystemPreferences")
            .get(SystemPreferences.databaseAddress, databaseAddressValue));
        root.show();
    } catch (Exception e) {
        e.printStackTrace();
    }

Any advice as to how to fix this is much appreciated.

Upvotes: 0

Views: 1422

Answers (2)

Suat Keskin
Suat Keskin

Reputation: 114

Try this :

FXMLLoader fxmlLoader = FXMLLoader(SettingsWindowController.class.getResource("Settings.fxml"));
AnchorPane page = (AnchorPane) fxmlLoader.load();

Upvotes: 0

gfkri
gfkri

Reputation: 2179

You are assigning the return value of FXMLLoader.load() to a FXMLLoader reference.

FXMLLoader.load() returns the highest object in you FXML file and that is for sure not a FXMLLoader object.

If you want to use a controller class for event handling and proper intialization you have to set it first and load the FXML in an other way (I assume that the SettingsWindowController is your controller class and has a default constructor):

    SettingsWindowController controller = new SettingsWindowController();
    FXMLLoader loader = new FXMLLoader(SettingsWindowController.class
            .getResource("Settings.fxml"));
    loader.setController(controller);
    AnchorPane page = (AnchorPane)loader.load();

Upvotes: 1

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