how can i change the color of titlebar in JFrame?

问题

I am using the following code,

UIManager.put(\"JFrame.activeTitleBackground\", Color.red);

for change the toolbar color in JFrame. But it didn\'t work.

Is it possible to change the color of titlebar in JFrame?

回答1:

Its not possible. The top level JFrame is controlled by the look & feel of the underlying OS.

You CAN change the color of an InternalFrame.

回答2:

//source : javax/swing/plaf/metal/MetalTitlePane.java
    import javax.swing.*;
    import javax.swing.plaf.*;
    import javax.swing.plaf.metal.*;
    public class TitleColor
    {
        public static void main_helper (String args[])
        {
            JFrame f = new JFrame ();
            f.setDefaultCloseOperation 
            (
                JFrame.DISPOSE_ON_CLOSE
            );
            f.setSize (300, 300);
            f.setLocationRelativeTo (null);

            f.setUndecorated ( true );
            f.getRootPane ().setWindowDecorationStyle
            (
                JRootPane.FRAME
            );

            JPanel panel = new JPanel ();
            panel.setBackground ( java.awt.Color.white );
            f.setContentPane ( panel );

            DefaultMetalTheme z =
            new DefaultMetalTheme ()
            {
                //inactive title color
                public ColorUIResource
                getWindowTitleInactiveBackground() 
                { 
                    return new ColorUIResource 
                        (java.awt.Color.orange); 
                }

                //active title color
                public ColorUIResource
                getWindowTitleBackground() 
                { 
                    return new ColorUIResource 
                        (java.awt.Color.orange); 
                }
                //start ActiveBumps
                public ColorUIResource 
                getPrimaryControlHighlight() 
                { 
                    return new ColorUIResource 
                        (java.awt.Color.orange); 
                }
                public ColorUIResource 
                getPrimaryControlDarkShadow() 
                { 
                    return new ColorUIResource 
                        (java.awt.Color.orange); 
                }

                public ColorUIResource 
                getPrimaryControl() 
                { 
                    return new ColorUIResource 
                        (java.awt.Color.orange); 
                }
                //end ActiveBumps

                //start inActiveBumps
                public ColorUIResource 
                getControlHighlight ()
                {
                    return new ColorUIResource 
                        (java.awt.Color.orange); 
                }

                public ColorUIResource 
                getControlDarkShadow ()
                {
                    return new ColorUIResource 
                        (java.awt.Color.orange); 
                }

                public ColorUIResource 
                getControl ()
                {
                    return new ColorUIResource 
                        (java.awt.Color.orange); 
                }
                //end inActiveBumps



            };



            MetalLookAndFeel.setCurrentTheme
            (
                z
            );

            try
            {
                UIManager.setLookAndFeel
                (
                    new MetalLookAndFeel ()
                );
            }
            catch (Exception e)
            {
                e.printStackTrace ();
            }   

            SwingUtilities.updateComponentTreeUI (f);


            f.setVisible (true);


        }
        public static void main (final String args[])
        {
            SwingUtilities.invokeLater
            (
                new Runnable ()
                {
                    public void run ()
                    {
                        main_helper ( args );
                    }
                }
            );
        }
    }

回答3:

For Windows10, in your main method, you can use:

UIDefaults uiDefaults = UIManager.getDefaults();
uiDefaults.put("activeCaption", new javax.swing.plaf.ColorUIResource(Color.gray));
uiDefaults.put("activeCaptionText", new javax.swing.plaf.ColorUIResource(Color.white));
JFrame.setDefaultLookAndFeelDecorated(true);

回答4:

I think the goal is to achive a real application look on Win10. As it is not possible to change the window title color for real, the only way is to customize the window.

Although examples installing a variant of the Metal LAF gives a good example, I found that this problem is more complicated. A real Win10 window has to have win10 border, transparent border (shadow) where the user can drag for resize. The title has to use Win10 icons, and hovers for the window buttons.

I'd f.setUndecorated(true); and draw it on my own, and set the insets of the window so that the content will work as normal.

(Small print: although we all "know" that one can customize Swing with LAFs, in the real life writing a LAF is always a lot more complicated than just subclassing and drawing your own decoration. As an extra hassle, the LAF architecture does not express all the component properties, and the "native" LAF is quite far from the native look (e.g. check the win7 dropdown) or the feel (dropdowns don't slide out, win7 dropdowns have no hover, but buttons do). Oh, not to mention the lack of Windows-like components, such as a decent Office 2016 ribbon, or even a simple "toggle" of Win10. Really, you cannot do too much without brewing your own components.)

回答5:

UIManager.put("InternalFrame.activeTitleBackground", new ColorUIResource(Color.black ));
UIManager.put("InternalFrame.activeTitleForeground", new ColorUIResource(Color.WHITE));
UIManager.put("InternalFrame.titleFont", new Font("Dialog", Font.PLAIN, 11));

来源：https://stackoverflow.com/questions/2482971/how-can-i-change-the-color-of-titlebar-in-jframe