JavaFX Application Icon

Question

Is it possible to change the application icon using JavaFX, or does it have to be done using Swing?

Solution 1

Assuming your stage is "stage" and the file is on the filesystem:

stage.getIcons().add(new Image("file:icon.png"));

As per the comment below, if it's wrapped in a containing jar you'll need to use the following approach instead:

stage.getIcons().add(new Image(<yourclassname>.class.getResourceAsStream("icon.png")));

Solution 2

I tried this and it totally works. The code is:

stage.getIcons().add(
   new Image(
      <yourclassname>.class.getResourceAsStream( "icon.png" ))); 

icon.png is under the same folder as the source files.

Solution 3

Full program for starters :) This program sets icon for StackOverflowIcon.

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.image.Image;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

public class StackoverflowIcon extends Application {

    @Override
    public void start(Stage stage) {
        StackPane root = new StackPane();
        // set icon
        stage.getIcons().add(new Image("/path/to/stackoverflow.jpg"));
        stage.setTitle("Wow!! Stackoverflow Icon");
        stage.setScene(new Scene(root, 300, 250));
        stage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}

Output Screnshot

Updated for JavaFX 8

No need to change the code. It still works fine. Tested and verified in Java 1.8(1.8.0_45). Path can be set to local or remote both are supported.

stage.getIcons().add(new Image("/path/to/javaicon.png"));

OR

stage.getIcons().add(new Image("https://example.com/javaicon.png"));

Hope it helps. Thanks!!

Solution 4

you can add it in fxml. Stage level

<icons>
    <Image url="@../../../my_icon.png"/>
</icons>

Solution 5

If you have have a images folder and the icon is saved in that use this

stage.getIcons().add(new Image(<yourclassname>.class.getResourceAsStream("/images/comparison.png")));

and if you are directly using it from your package which is not a good practice use this

stage.getIcons().add(new Image(<yourclassname>.class.getResourceAsStream("comparison.png")));

and if you have a folder structure and you have your icon inside that use

stage.getIcons().add(new Image(<yourclassname>.class.getResourceAsStream("../images/comparison.png")));

View more solutions

Comments

[jewelsea]

Additionally, if the icon is to be installed as an application shortcut and you are using WebStart as the deployment technology then you might want to set the appropriate icon/shortcut/desktop settings in your jnlp file: docs.oracle.com/javase/7/docs/technotes/guides/javaws/…

[XXL]

isn't that exactly what has been posted above?

[drzymala]

You can add multiple images of different sizes and JavaFX will pick the one that fits best. Because you have different sizes in task bar and different in title bar.

[qed]

Does this support svg?

[Madan Sapkota]

@qed, I don't think SVG is supported, but I'm not 100% sure. You can test it.

[k_o_]

I think this does only work when the file is in the file system, for the more common situation where the icon is wrapped inside the jar file and in the classpath, this was not working for me. One of the other solutions using stage.getIcons().add( new Image( <yourclassname>.class.getResourceAsStream( "icon.png" ))); works.

[dzim]

Please not, that at least on Ubuntu (Unity) the icon is only used for the window decoration, but not for the launcher. To have the icon visible (instead of the ugly question mark), you'd need to specify appropriate .dektop file. See my description here

[L. Guthardt]

This answer is completely unnecessary since another answer already explained the same.

[L. Guthardt]

This answer is completely unnecessary since another answer already explained the same.

[Ko Ga]

Didn't find it that intuitive but make sure that you have the image URL prefixed with file, e.g, if you have the logo in the res folder under your project root: stage.getIcons().add(new Image("file:"+String.valueOf(Paths.get(System.getProperty("u‌​ser.dir"),"res","log‌​o.png"))));

[Jim Fred]

'<yourclassname>.class' could be replace by 'getClass()'

[TejpalBh]

this changes only icon on title bar ie top left side on window. how to change icon of application when it is on desktop as shortcut? and on taskbar?

[Thibstars]

It isn't good practice to place resources in your java packages. It is recommended to place them in your resources folder.

[sushmitha shenoy]

I m trying to add multiple icons . However only the first one appears ! Any idea ? Thanks

[Michael Berry]

@sushmithashenoy The multiple icons are meant to be the same icons of different resolution, and JFX will pick the best one. It doesn't support showing multiple icons simultaneously.

[Simon Diemert]

I just tried using a .svg file for the JavaFX application icon. It did not work. No error was provided, but JavaFX used its default logo instead of my custom one.

[kleopatra]

actually, .. no: dots are not supported in resource lookup, please read the api doc

[Matt Groth]

I have a similar question to @TejpalBh. I've searched this whole page for any mention of "Mac" and found none. Is this supposed to change the icon that shows up in the MacOS Dock/task switcher? I have tested it, and apparently it does not. Should a separate question be made for that?

[Matt Groth]

Answering my own question: Apparently this is the way to change the MacOS dock icon for java apps: stackoverflow.com/a/6006190/6596010 I tested it and it works for me

[Tom Rutchik]

If you want to put your icon in the resources directory you'll need to change <yourclassname>.class.getResourceAsStream( "icon.png" )) to <yourclassname>.class.getClassLoader().getResourceAsStream("‌​icon.png))