CODEWITHSUNDEEP
javaswinglook-and-feeluimanager
Fer
Fer

Reputation: 1992

UIManager setLookAndFeel is not working

I try to use UIManager.setLookAndFeel function to change the appearance of my java application but it makes no effect to the visual appearance of my JFrame/buttons. I use Netbeans 7.4 and my application is Java Swing Desktop Application. 

     /**
     * Main method launching the application.
     */
    public static void main(String[] args) {     
        try {
        UIManager.setLookAndFeel("com.sun.java.swing.plaf.motif.MotifLookAndFeel");
        } catch (Exception e) { 
            System.out.println(e.getMessage());
        }
        System.out.println("init");
        launch(JavaMysqlTestApp.class, args);        
    }

I used

but non of them changed anything of appearance of my companent. How can I make this function take effect?

Upvotes: 1

Views: 3333

Answers (1)

Joop Eggen
Joop Eggen

Reputation: 109547

One might inspect all look-and-feels:

    try {
        LookAndFeel laf = UIManager.getLookAndFeel();
        for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
            ...
            if (laf.getName().equals(info.getName())) {
                ...;
            }
        }
    } catch (ClassNotFoundException | InstantiationException
            | IllegalAccessException | UnsupportedLookAndFeelException ex) {
        Logger.getLogger(NewJFrame1.class.getName()).log(Level.SEVERE, null, ex);
    }

Probably the look-and-feel is set a second time. For beginners finding this question: L&F only works for swing; if one uses awt Button (instead of JButton) or JavaFX, you will see no change too.

You could do:

UIManager.addPropertyChangeListener(...);

and on any change do your change afterwards.

Upvotes: 1

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