Considering the following sample.
How to access to arguments/parameters of the application in the controller?
Thank you.
NB: I’ve tried to mix App.java and MyController.java in only one Class file, but didn’t help.
App.java (simplified):
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public class App extends Application { public static void main(String[] args) { Application.launch(App.class, args); } @Override public void start(Stage primaryStage) throws Exception { // output arguments in console System.out.println(getParameters().getNamed().toString()); Parent root = FXMLLoader.load(getClass().getResource("MyView.fxml")); final Scene scene = new javafx.scene.Scene(root); primaryStage.setScene(scene); primaryStage.show(); }}MyController.java (simplified):
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public class MyController implements Initializable { @Override public void initialize(URL url, ResourceBundle rb) { // HOW TO getParameters() HERE ? } @FXML private Button myButton; @FXML private void my_Action(ActionEvent event) { // HOW TO getParameters() HERE ? }}MyView.fxml (simplified):
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<AnchorPane fx:id="root" fx:controller="mainpackage.MyController"> <children> <Button fx:id="myButton" onAction="#my_Action" text="Start" /> </children></AnchorPane>Advertisement
Answer
1. The most straightforward way is to save them in the app:
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public class App extends Application { public static void main(String[] args) { launch(); } public static String parameters; @Override public void start(Stage primaryStage) throws Exception { parameters = getParameters().getNamed().toString(); Parent root = FXMLLoader.load(getClass().getResource("MyView.fxml")); final Scene scene = new javafx.scene.Scene(root); primaryStage.setScene(scene); primaryStage.show(); }}and read them in the controller:
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public class MyController implements Initializable { @Override public void initialize(URL url, ResourceBundle rb) { System.out.println(App.parameters); }2. A bit more complex (and better in general) approaches are described in the next answers: