Demonstrate using the System Tray (AWT) to control a JavaFX application.

JavaFXTrayIconSample.java

import javafx.application.*;
import javafx.geometry.Pos;
import javafx.scene.*;
import javafx.scene.control.Label;
import javafx.scene.layout.*;
import javafx.scene.paint.Color;
import javafx.stage.*;

import javax.imageio.ImageIO;
import java.io.IOException;
import java.net.URL;
import java.text.*;
import java.util.*;

// Java 8 code
public class JavaFXTrayIconSample extends Application {

    // one icon location is shared between the application tray icon and task bar icon.
    // you could also use multiple icons to allow for clean display of tray icons on hi-dpi devices.
    private static final String iconImageLoc =
            "http://icons.iconarchive.com/icons/scafer31000/bubble-circle-3/16/GameCenter-icon.png";

    // application stage is stored so that it can be shown and hidden based on system tray icon operations.
    private Stage stage;

    // a timer allowing the tray icon to provide a periodic notification event.
    private Timer notificationTimer = new Timer();

    // format used to display the current time in a tray icon notification.
    private DateFormat timeFormat = SimpleDateFormat.getTimeInstance();

    // sets up the javafx application.
    // a tray icon is setup for the icon, but the main stage remains invisible until the user
    // interacts with the tray icon.
    @Override public void start(final Stage stage) {
        // stores a reference to the stage.
        this.stage = stage;

        // instructs the javafx system not to exit implicitly when the last application window is shut.
        Platform.setImplicitExit(false);

        // sets up the tray icon (using awt code run on the swing thread).
        javax.swing.SwingUtilities.invokeLater(this::addAppToTray);

        // out stage will be translucent, so give it a transparent style.
        stage.initStyle(StageStyle.TRANSPARENT);

        // create the layout for the javafx stage.
        StackPane layout = new StackPane(createContent());
        layout.setStyle(
                "-fx-background-color: rgba(255, 255, 255, 0.5);"
        );
        layout.setPrefSize(300, 200);

        // this dummy app just hides itself when the app screen is clicked.
        // a real app might have some interactive UI and a separate icon which hides the app window.
        layout.setOnMouseClicked(event -> stage.hide());

        // a scene with a transparent fill is necessary to implement the translucent app window.
        Scene scene = new Scene(layout);
        scene.setFill(Color.TRANSPARENT);

        stage.setScene(scene);
    }

    /**
     * For this dummy app, the (JavaFX scenegraph) content, just says "hello, world".
     * A real app, might load an FXML or something like that.
     *
     * @return the main window application content.
     */
    private Node createContent() {
        Label hello = new Label("hello, world");
        hello.setStyle("-fx-font-size: 40px; -fx-text-fill: forestgreen;");
        Label instructions = new Label("(click to hide)");
        instructions.setStyle("-fx-font-size: 12px; -fx-text-fill: orange;");

        VBox content = new VBox(10, hello, instructions);
        content.setAlignment(Pos.CENTER);

        return content;
    }

    /**
     * Sets up a system tray icon for the application.
     */
    private void addAppToTray() {
        try {
            // ensure awt toolkit is initialized.
            java.awt.Toolkit.getDefaultToolkit();

            // app requires system tray support, just exit if there is no support.
            if (!java.awt.SystemTray.isSupported()) {
                System.out.println("No system tray support, application exiting.");
                Platform.exit();
            }

            // set up a system tray icon.
            java.awt.SystemTray tray = java.awt.SystemTray.getSystemTray();
            URL imageLoc = new URL(
                    iconImageLoc
            );
            java.awt.Image image = ImageIO.read(imageLoc);
            java.awt.TrayIcon trayIcon = new java.awt.TrayIcon(image);

            // if the user double-clicks on the tray icon, show the main app stage.
            trayIcon.addActionListener(event -> Platform.runLater(this::showStage));

            // if the user selects the default menu item (which includes the app name), 
            // show the main app stage.
            java.awt.MenuItem openItem = new java.awt.MenuItem("hello, world");
            openItem.addActionListener(event -> Platform.runLater(this::showStage));

            // the convention for tray icons seems to be to set the default icon for opening
            // the application stage in a bold font.
            java.awt.Font defaultFont = java.awt.Font.decode(null);
            java.awt.Font boldFont = defaultFont.deriveFont(java.awt.Font.BOLD);
            openItem.setFont(boldFont);

            // to really exit the application, the user must go to the system tray icon
            // and select the exit option, this will shutdown JavaFX and remove the
            // tray icon (removing the tray icon will also shut down AWT).
            java.awt.MenuItem exitItem = new java.awt.MenuItem("Exit");
            exitItem.addActionListener(event -> {
                notificationTimer.cancel();
                Platform.exit();
                tray.remove(trayIcon);
            });

            // setup the popup menu for the application.
            final java.awt.PopupMenu popup = new java.awt.PopupMenu();
            popup.add(openItem);
            popup.addSeparator();
            popup.add(exitItem);
            trayIcon.setPopupMenu(popup);

            // create a timer which periodically displays a notification message.
            notificationTimer.schedule(
                    new TimerTask() {
                        @Override
                        public void run() {
                            javax.swing.SwingUtilities.invokeLater(() ->
                                trayIcon.displayMessage(
                                        "hello",
                                        "The time is now " + timeFormat.format(new Date()),
                                        java.awt.TrayIcon.MessageType.INFO
                                )
                            );
                        }
                    },
                    5_000,
                    60_000
            );

            // add the application tray icon to the system tray.
            tray.add(trayIcon);
        } catch (java.awt.AWTException | IOException e) {
            System.out.println("Unable to init system tray");
            e.printStackTrace();
        }
    }

    /**
     * Shows the application stage and ensures that it is brought ot the front of all stages.
     */
    private void showStage() {
        if (stage != null) {
            stage.show();
            stage.toFront();
        }
    }

    public static void main(String[] args) throws IOException, java.awt.AWTException {
        // Just launches the JavaFX application.
        // Due to way the application is coded, the application will remain running
        // until the user selects the Exit menu option from the tray icon.
        launch(args);
    }
}

JavaFX will get it's own system tray support in a latter release once RT-17503 Provide system tray support is implemented. Until then, using the AWT system tray as demonstrated in the sample code in this gist seems to work fine.

Just for convenience, the RT-17503 link has been migrated to the JDK Bug System .

Isn't 5 years enough to implement it?

Isn't 5 years enough to implement it?

I guess not

any news on this issue yet?

Still no change... I'm sad.

The javafx team is lazy af

I guess they abandoned javafx, that's why they open sourced it.

Will this ever get implemented?

Any good news?

6 years later???

I feel like someone should make a library for easily working with TrayIcons from JavaFX as the AWT API is not friendly to me as a JavaFX user. Guess that's another side project for me to do...

I feel like someone should make a library for easily working with TrayIcons from JavaFX as the AWT API is not friendly to me as a JavaFX user. Guess that's another side project for me to do...

I succeeded in making this marginally easier. Have a look at my repo "FXTrayIcon", particularly at the test application that I wrote. Still uses AWT, but abstracts away some of the nastiness. FXTrayIcon

I feel like someone should make a library for easily working with TrayIcons from JavaFX as the AWT API is not friendly to me as a JavaFX user. Guess that's another side project for me to do...

I succeeded in making this marginally easier. Have a look at my repo "FXTrayIcon", particularly at the test application that I wrote. Still uses AWT, but abstracts away some of the nastiness. FXTrayIcon

When can I come kiss you? @dustinkredmond

I feel like someone should make a library for easily working with TrayIcons from JavaFX as the AWT API is not friendly to me as a JavaFX user. Guess that's another side project for me to do...

I succeeded in making this marginally easier. Have a look at my repo "FXTrayIcon", particularly at the test application that I wrote. Still uses AWT, but abstracts away some of the nastiness. FXTrayIcon

When can I come kiss you? @dustinkredmond

Star the repo and that's even better than a kiss in my opinion. :D

I thought I already did!!! Thanks for reminding me to do it again. It didn't work the first time for whatever reason.

I feel like someone should make a library for easily working with TrayIcons from JavaFX as the AWT API is not friendly to me as a JavaFX user. Guess that's another side project for me to do...

I succeeded in making this marginally easier. Have a look at my repo "FXTrayIcon", particularly at the test application that I wrote. Still uses AWT, but abstracts away some of the nastiness. FXTrayIcon

When can I come kiss you? @dustinkredmond

Star the repo and that's even better than a kiss in my opinion. :D

And so I just "kissed" you! 🤣 Thanks so much for putting some effort into this workaround. If I had the knowledge, I would have contributed to this component which seems quite needed for a decent JavaFx control set.

No news yet??
Thanks also to @ dustinkredmond, I hope his project helps me

托盘图标显示后，点击桌面空白位置，托盘图标不关闭，如何处理？