I am playing around with SceneBuilder and come across a few questions about the intialize()
method and how to change ComboBox
items after it's already been initialized in said method. So basically, after I set the items in initialize, I am not able to change them anymore from another method in the controller.
Here is my code:
public class AppController implements Initializable {
private ObservableList<String> list = FXCollections.observableArrayList();
private MainModel model;
@FXML
private ComboBox<String> cobUsers = new ComboBox<String>();
@Override
public void initialize(URL url, ResourceBundle rb) {
list.add("name1");
list.add("name2");
cobUsers.setItems(list); // this works!
}
public void initModel(MainModel model) {
this.model = model;
}
public void addItems(){
list.add("name3");
list.add("name4");
cobUsers.setItems(list); // this does not work. ComboBox items remain "name1" and "name2"
}
}
public class App extends Application {
private Stage primaryStage;
private AnchorPane rootLayout;
private AppController appController = new AppController();
MainModel model = new MainModel();
@Override
public void start(Stage primaryStage) {
appController.initModel(model);
this.primaryStage = primaryStage;
this.primaryStage.setTitle("App");
initRootLayout();
appController.addItems();
}
/**
* Initializes the root layout.
*/
public void initRootLayout() {
try {
// Load root layout from fxml file.
FXMLLoader loader = new FXMLLoader();
loader.setLocation(getClass().getResource("FXMLDocument.fxml"));
rootLayout = (AnchorPane) loader.load();
// Show the scene containing the root layout.
Scene scene = new Scene(rootLayout);
primaryStage.setScene(scene);
primaryStage.show();
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
launch(args);
}
}
So guess my question is, how can I access/change my ComboBox
later on, after it's been initialized in intialize()
?
Thanks! :)
UPDATE 1:
I have changed the initRootLayout()
in the App
class (see below) and it WORKS now. list
now contains 4 items and all of them show up in the ComboBox
after calling addItems()
. Thanks everyone!
public void initRootLayout() {
try {
// Load root layout from fxml file.
FXMLLoader loader = new FXMLLoader(); loader.setLocation(getClass().getResource("FXMLDocument.fxml"));
rootLayout = (AnchorPane) loader.load();
AppController controller = loader.<AppController>getController();
controller.addItems();
// Show the scene containing the root layout.
Scene scene = new Scene(rootLayout);
primaryStage.setScene(scene);
primaryStage.show();
} catch (IOException e) {
e.printStackTrace();
}
}