Splash screen needs to keep on top

Hello Everyone,
I have been working on application where i need to show splash screen before launching the actual application.
I did create JDailog as splash screen and want to show this splash screen at top of all application but I don't want to set setAlwaysOnTop(true). becasue my requirement is that to keep splash screen on top at the time of launching. if user click any other application and splash screen doesn't remain on top, that is fine with me.
i want when i do launch my application and start working on other application like MS word, splash screen must visible at the top of the active application.
so what really i need to do to keep this on top of active application.
I don't want to use setAlwaysOnTop(true). because it has certain limitations and that doesnt really work in my case.
really looking for your great response.
Thanks,

You could do setAlwaysOnTop( true ) to ensure that the splash screen is shown on top,
and have a listener to reset it once it is made visible. Something like
splash.addHierarchyListener( new HierarchyListener() {
     public void hierarchyChanged(HierarchyEvent e) {
          if ( HierarchyEvent.SHOWING_CHANGED == ( e.getChangeFlags() & HierarchyEvent.SHOWING_CHANGED ) ) {
               splash.setAlwaysOnTop( false );
};

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Splash screen - need help loading

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Launching Splash Screen on the click of a button

Situation: I have an application running, and when the user clicks a button on the main menu, a new dialog opens.
Problem: This dialog takes awhile to load as it is retreiving information from the database etc ... hence I would like to launch a splash screen in one thread and the other dialog in a second thread.
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public class SplashScreen extends JWindow {
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        this.launchSplash();
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        JPanel content = (JPanel) getContentPane();
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        // Set the window's bounds, centering the window
        int width = 350;
        int height = 255;
        Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();
        int x = (screen.width - width) / 2;
        int y = (screen.height - height) / 2;
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        this.setVisible(true);
        // Wait a little while, maybe while loading resources
        try {
            Thread.sleep(duration);
        } catch (Exception e) {
        this.setVisible(false);
//        System.exit(0);
//    public static void main(String[] args) {
//        // Throw a nice little title page up on the screen first
//        SplashScreen splash = new SplashScreen(10000);
//        // Normally, we'd call splash.launchSplash() and get on
//        // with the program. But, since this is only a test...
//        System.exit(0);
//    }When I run this as a standalone, it works fine (i.e. uncomment the 'main' function). But when I try to call it from another function, it doesn't launch.
Eg: I am calling it when a button has been clicked. Code is as follows:
    public void actionPerformed(ActionEvent e) {
     SplashScreen sd = new SplashScreen(10000);
     // Calling the dialog (that takes a long time to load) here
}Would like to know whether
[1] is it possible to launch a splash screen on the click of a button? As usually a splash screen is done at the beginning of an application before anything is loaded. In my case an application is already running, during which a splash screen needs to be launched.
[2] Would using the new splashscreen class of Java 6.0 support this?
[3] If not what is the best way to approach this problem
Appreciate any input.
Thanks,
Edited by: mnr on Feb 20, 2008 9:47 AM

Thanks Michael_Dunn, I see what you mean.
I know this is not exactly as you suggested, but when I tried the following I got a partial solution. Just wanted to know whether I am on the right track.
I wrote a small class for the thread
public class cSplashScreenThread extends Thread {
    public volatile boolean finished = false;
    public cSplashScreenThread(){
// override run() method in interface
    public void run() {
       SplashScreen sd = new SplashScreen(10000);
    }This calls the SplashScreen(code encl in earlier post).
In the main application I added the following
public void actionPerformed(ActionEvent e) {
// SPLASH SCREEN
//                    SwingUtilities.invokeLater(new Runnable() {
//                        public void run() {
                            cSplashScreenThread sd = new cSplashScreenThread();
                            sd.start();
                            sd.finished = true;
// DIALOG
                    SwingUtilities.invokeLater(new Runnable() {
                        public void run() {
                      DialogToCall tempDialolog = new DialogToCall(.......);
                            tempDialolog .setVisible(true);
:When I run this in the application, the SplashScreen does indeed appear(earlier I wasn't able to see the splashScreen), and I notice (when I put a breakpoint at the pt where it calls the dialog), that it is going and creating the dialog etc, but the dialog never appears ...... after the splash screen closes, nothing else happens!
Could you please guide me on what best to do?
Thanks,
Edited by: mnr on Feb 21, 2008 11:19 AM

I keep getting an audi add as a background or splash screen when I bring up my home page (simpatico msn) how do I get rid of it?

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The settings for the warning messages have been removed from the user interface (Bug 513166).
You need to change the related security.warn_* prefs directly on the about:config page. 
Filter: security.warn
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HT201177 I cannot view some videos and participate in some websites since Adobe upgraded all to Flash 11.7. I have an older Mac G5 PowerPC (no Intel chip) running OS 10.5.8. I keep getting splash screens saying I have to update to Flash 11.7 but 11.7 is m

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I'll bet you'll have better luck if you post your question in the Power Mac discussions here: https://discussions.apple.com/community/desktop_computers/power_mac
Either that, or one of the forums at Adobe.
Good luck.
Russ

Hi guys need Help with Displaying Splash Screen?!!?

Hi Guys.
Sorry for the last incomplete post my mistake!
I need help displaying a splash screen as an advertisment or something before i have my main application run.
Here is the code i wrote (it works as if it were a seperate application)
package MajourProject;
import java.awt.AWTException;
import java.awt.Dimension;
import java.awt.Robot;
import java.awt.Toolkit;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JProgressBar;
import javax.swing.JScrollPane;
import javax.swing.JWindow;
* @author Matt
public class SplashScreen extends JWindow
    public SplashScreen()
        int UpTime = 20000;
        Start(UpTime);
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        ImageIcon ii = new ImageIcon("src/1.jpg");
          JScrollPane jsp = new JScrollPane(new JLabel(ii));
                JProgressBar Bar = new JProgressBar();
          getContentPane().add(jsp);
          setSize(853,303);
          centerScreen();
          setVisible(true);
               try
                            Thread.sleep(20000);
                           dispose();
               catch(Exception IE)
        private void centerScreen()
                Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
                int x = (int) ((d.getWidth() - getWidth()) / 2);
          int y = (int) ((d.getHeight() - getHeight()) / 2);
          setLocation(x, (y-100));
       public static void main(String [] args)
             new SplashScreen();
}but i now have a problem as i already have a main application done as i wrote this seperately. I now need to combine the two together. So what i did was in my Main Application wrote:
Splash_Screen SS = new Splash_Screen();it then runs my Splash Screen class which i re-wrote to look as such:
package MajourProject;
import java.awt.AWTException;
import java.awt.Dimension;
import java.awt.Robot;
import java.awt.Toolkit;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JProgressBar;
import javax.swing.JScrollPane;
import javax.swing.JWindow;
* @author Matt
public class SplashScreen extends JWindow
    public SplashScreen()
        int time = 15000;
        Start(time);
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        ImageIcon ii = new ImageIcon("src/1.jpg");
          JScrollPane jsp = new JScrollPane(new JLabel(ii));
                JProgressBar Bar = new JProgressBar();
          getContentPane().add(jsp);
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          centerScreen();
          setVisible(true);
               try
                            Thread.sleep(20000);
                            dispose();
               catch(Exception IE)
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                Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
                int x = (int) ((d.getWidth() - getWidth()) / 2);
          int y = (int) ((d.getHeight() - getHeight()) / 2);
          setLocation(x, (y-100));
}it obviously runs the default constructor which then runs the other methods in the class but it doesn't seem to show can anybody help me to find out whats wrong? It seems to be there just before the main application launches but only for a split second. And when i am waiting while the thread is sleeping the area i have defined the Content pane for he cursor goes to the loading icon! I don't know if this makes any sence to you but if you can help me it would be most apreciated.
Thanks.

SpearOne wrote:
Hi Encephalopathic
why would it work if i put it in it's own application surely it wouldn't be caused by this thread.sleep?? everything after it is in fact put to sleep. In its "own" application, nothing happens after it is displayed.
if it is the problem then could you please give me some code to add quickly to test??
import java.awt.Dimension;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JProgressBar;
import javax.swing.JScrollPane;
import javax.swing.JWindow;
import javax.swing.Timer;
public class SplashScreen extends JWindow
private static final String IMAGE_PATH = "src/1.jpg";
private static final int UP_TIME = 15000;
public SplashScreen()
    Start();
public void Start()
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private void centerScreen()
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public static void main(String[] args)
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    final SplashScreen splash = new SplashScreen();
    splash.setVisible(true);
    Timer swingTimer = new Timer(UP_TIME, new ActionListener()
      public void actionPerformed(ActionEvent e)
        splash.dispose();
        frame.setVisible(true);
    swingTimer.setRepeats(false);
    swingTimer.start();
}

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With good tips from Thomas Jung
I made 2 function modules to suit my whims.
SAP being a serious Businesss Software you cannot have too many JPGs floating around! One or two is fun.
In Function group uou need two screens 0806 & 2009 which are essentially blank.
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Description: Show Splash at Start
FUNCTION zjnc_start_splash.
""Local interface:
*" IMPORTING
*" REFERENCE(IMAGEFILE) TYPE C DEFAULT 'THANKS.JPG'
*" REFERENCE(WIDTH) TYPE I DEFAULT 415
*" REFERENCE(HEIGHT) TYPE I DEFAULT 274
*" REFERENCE(TIMEOUT) TYPE I DEFAULT 3
*" REFERENCE(CALLBACK) TYPE C
 Global data declarations
MOVE imagefile TO g_name.
MOVE width TO picwidth.
MOVE height TO picheight.
MOVE timeout TO pictimeout.
MOVE callback TO piccallback.
TRANSLATE piccallback TO UPPER CASE.
PERFORM getpicurl.
CALL SCREEN 0806.
ENDFUNCTION.
Code listing for function: ZJNC_END_SPLASH
Description: Show Splash at End
FUNCTION ZJNC_END_SPLASH.
""Local interface:
*" IMPORTING
*" REFERENCE(IMAGEFILE) TYPE C DEFAULT 'THANKS.JPG'
*" REFERENCE(WIDTH) TYPE I DEFAULT 415
*" REFERENCE(HEIGHT) TYPE I DEFAULT 274
*" REFERENCE(TIMEOUT) TYPE I DEFAULT 3
 Global data declarations
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MOVE width TO picwidth.
MOVE height TO picheight.
MOVE timeout TO pictimeout.
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Code listing for: LZUTILTOP
TOP level Include of Function Group ZUTIL
Author Jayanta Narayan Choudhuri
 Flat 302
 395 Jodhpur Park
 Kolkata 700 068
 Email [email protected]
 URL: http://www.geocities.com/ojnc
FUNCTION-POOL zutil. "MESSAGE-ID ..
TYPE-POOLS: abap.
DATA: graphic_url(255),
 g_result TYPE i,
 g_linesz TYPE i,
 g_filesz TYPE i,
 g_name(100).
TYPES: t_graphic_line(256) TYPE x.
DATA: graphic_line TYPE t_graphic_line,
 graphic_table TYPE TABLE OF t_graphic_line.
DATA: picwidth TYPE i,
 picheight TYPE i,
 pictimeout TYPE i,
 piccallback(60) TYPE c,
 first TYPE boolean.
 CLASS ZCL_ES_SPLASH_SCREEN DEFINITION
CLASS zcl_es_splash_screen DEFINITION.
PUBLIC SECTION.
 EVENTS on_close.
 METHODS constructor
 IMPORTING
 !i_num_secs TYPE i DEFAULT 5
 !i_url TYPE c
 !i_width TYPE i
 !i_height TYPE i.
PROTECTED SECTION.
 METHODS handle_end_of_timer
 FOR EVENT finished OF cl_gui_timer.
PRIVATE SECTION.
 DATA container TYPE REF TO cl_gui_dialogbox_container.
 DATA image TYPE REF TO cl_gui_picture.
 DATA timer TYPE REF TO cl_gui_timer.
ENDCLASS. "ZCL_ES_SPLASH_SCREEN DEFINITION
CLASS ZCL_ES_SPLASH_SCREEN IMPLEMENTATION
CLASS zcl_es_splash_screen IMPLEMENTATION.
METHOD constructor.
 DATA: image_width TYPE i,
 image_height TYPE i.
 COMPUTE image_width = i_width + 30.
 COMPUTE image_height = i_height + 50.
 CREATE OBJECT container
 EXPORTING
 width = 10
 height = 10
 top = 10
 left = 10
 name = 'DialogSplash'.
 CALL METHOD container->set_caption
 EXPORTING
 caption = g_name.
 CREATE OBJECT image
 EXPORTING
 parent = container.
 CALL METHOD image->load_picture_from_url
 EXPORTING
 url = i_url.
 image->set_display_mode( image->display_mode_normal_center ).
 cl_gui_cfw=>flush( ).
 container->set_metric( EXPORTING metric = image->metric_pixel ).
 DATA: myleft TYPE i,
 mytop TYPE i.
 COMPUTE myleft = ( 800 - image_width ) / 2.
 COMPUTE mytop = ( 600 - image_height ) / 2.
 IF myleft < 0.
 MOVE 0 TO myleft.
 ENDIF.
 IF mytop < 0.
 MOVE 0 TO mytop.
 ENDIF.
 container->set_position(
 EXPORTING
 height = image_height
 left = myleft
 top = mytop
 width = image_width ).
 cl_gui_cfw=>update_view( ).
 CREATE OBJECT timer.
 timer->interval = i_num_secs.
 SET HANDLER me->handle_end_of_timer FOR timer.
 timer->run( ).
 cl_gui_cfw=>flush( ).
ENDMETHOD. "constructor
METHOD handle_end_of_timer.
I wanted NAMASTE to remain until JOB was complete.
 IF container IS NOT INITIAL.
 container->free( ).
 CLEAR container.
 FREE container.
 ENDIF.
 IF timer IS NOT INITIAL.
 timer->free( ).
 CLEAR timer.
 FREE timer.
 ENDIF.
 cl_gui_cfw=>flush( ).
 RAISE EVENT on_close.
ENDMETHOD. "handle_end_of_timer
ENDCLASS. "ZCL_ES_SPLASH_SCREEN IMPLEMENTATION
 CLASS lcl_event_handler DEFINITION
CLASS lcl_event_handler DEFINITION.
PUBLIC SECTION.
 CLASS-METHODS: on_close FOR EVENT on_close OF zcl_es_splash_screen.
ENDCLASS. "lcl_event_handler DEFINITION
CLASS lcl_event_handler IMPLEMENTATION
CLASS lcl_event_handler IMPLEMENTATION.
METHOD on_close.
 IF sy-dynnr = 2009.
 LEAVE PROGRAM.
 ELSE.
 MOVE abap_false TO first.
 PERFORM (piccallback) IN PROGRAM (sy-cprog).
 ENDIF.
ENDMETHOD. "on_close
ENDCLASS. "lcl_event_handler IMPLEMENTATION
DATA: splash TYPE REF TO zcl_es_splash_screen.
*& Module STATUS_0806 OUTPUT
MODULE status_0806 OUTPUT.
IF first IS INITIAL.
 first = abap_true.
 SET TITLEBAR 'TITLE0806'.
 CREATE OBJECT splash
 EXPORTING
 i_num_secs = pictimeout
 i_url = graphic_url
 i_width = picwidth
 i_height = picheight.
 SET HANDLER lcl_event_handler=>on_close FOR splash.
ENDIF.
ENDMODULE. " STATUS_0806 OUTPUT
*& Module STATUS_2009 OUTPUT
MODULE status_2009 OUTPUT.
IF first IS INITIAL.
 first = abap_true.
 SET TITLEBAR 'TITLE2009'.
 CREATE OBJECT splash
 EXPORTING
 i_num_secs = pictimeout
 i_url = graphic_url
 i_width = picwidth
 i_height = picheight.
 SET HANDLER lcl_event_handler=>on_close FOR splash.
ENDIF.
ENDMODULE. " STATUS_2009 OUTPUT
*& Form getpicurl
FORM getpicurl.
OPEN DATASET g_name FOR INPUT IN BINARY MODE.
REFRESH graphic_table.
CLEAR g_filesz.
DO.
 CLEAR graphic_line.
 READ DATASET g_name INTO graphic_line ACTUAL LENGTH g_linesz.
 ADD g_linesz TO g_filesz.
 APPEND graphic_line TO graphic_table.
 IF sy-subrc <> 0.
 EXIT.
 ENDIF.
ENDDO.
CLOSE DATASET g_name.
CLEAR graphic_url.
CALL FUNCTION 'DP_CREATE_URL'
 EXPORTING
 type = 'IMAGE'
 subtype = 'GIF'
 TABLES
 data = graphic_table
 CHANGING
 url = graphic_url
 EXCEPTIONS
 dp_invalid_parameter = 1
 dp_error_put_table = 2
 dp_error_general = 3
 OTHERS = 4.
IF sy-subrc <> 0.
 MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
 WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
 EXIT.
ENDIF.
ENDFORM. "getpicurl
Extracted by Direct Download Enterprise version 1.2 - E.G.Mellodew. 1998-2004 UK.

Useful Code of the Day: Splash Screen & Busy Application

So you are making an Swing application. So what are two common things to do in it?
1) Display a splash screen.
2) Block user input when busy.
Enter AppFrame! It's a JFrame subclass which has a glass pane overlay option to block input (setBusy()). While "busy", it displays the system wait cursor.
It also supports display of a splash screen. There's a default splash screen if you don't provide a component to be the splash screen, and an initializer runner which takes a Runnable object. The Runnable object can then modify the splash screen component, for example to update a progress bar or text. See the main method for example usage.
It also has a method to center a component on another component (useful for dialogs) or center the component on the screen.
NOTE on setBusy: I do recall issues with the setBusy option to block input. I recall it having a problem on some Unix systems, but I can't remember the details offhand (sorry).
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
* <CODE>AppFrame</CODE> is a <CODE>javax.swing.JFrame</CODE> subclass that
* provides some convenient methods for applications. This class implements
* all the same constructors as <CODE>JFrame</CODE>, plus a few others.
* Methods exist to show the frame centered on the screen, display a splash
* screen, run an initializer thread and set the frame as "busy" to block
* user input.
public class AppFrame extends JFrame implements KeyListener, MouseListener {
 * The splash screen window.
 private JWindow splash = null;
 * The busy state of the frame.
 private boolean busy = false;
 * The glass pane used when busy.
 private Component glassPane = null;
 * The original glass pane, which is reset when not busy.
 private Component defaultGlassPane = null;
 * Creates a new <CODE>AppFrame</CODE>.
 public AppFrame() {
 super();
 init();
 * Creates a new <CODE>AppFrame</CODE> with the specified
 * <CODE>GraphicsConfiguration</CODE>.
 * @param gc the GraphicsConfiguration of a screen device
 public AppFrame(GraphicsConfiguration gc) {
 super(gc);
 init();
 * Creates a new <CODE>AppFrame</CODE> with the specified title.
 * @param title the title
 public AppFrame(String title) {
 super(title);
 init();
 * Creates a new <CODE>AppFrame</CODE> with the specified title and
 * <CODE>GraphicsConfiguration</CODE>.
 * @param title the title
 * @param gc the GraphicsConfiguration of a screen device
 public AppFrame(String title, GraphicsConfiguration gc) {
 super(title, gc);
 init();
 * Creates a new <CODE>AppFrame</CODE> with the specified title and
 * icon image.
 * @param title the title
 * @param icon the image icon
 public AppFrame(String title, Image icon) {
 super(title);
 setIconImage(icon);
 init();
 * Creates a new <CODE>AppFrame</CODE> with the specified title and
 * icon image.
 * @param title the title
 * @param icon the image icon
 public AppFrame(String title, ImageIcon icon) {
 this(title, icon.getImage());
 * Initializes internal frame settings.
 protected void init() {
 // set default close operation (which will likely be changed later)
 setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
 // set up the glass pane
 glassPane = new JPanel();
 ((JPanel)glassPane).setOpaque(false);
 glassPane.addKeyListener(this);
 glassPane.addMouseListener(this);
 * Displays a new <CODE>JWindow</CODE> as a splash screen using the
 * specified component as the content. The default size of the
 * component will be used to size the splash screen. See the
 * <CODE>showSplash(Component, int, int)</CODE> method description for
 * more details.
 * @param c the splash screen contents
 * @return the window object
 * @see #showSplash(Component, int, int)
 * @see #hideSplash()
 public JWindow showSplash(Component c) {
 return showSplash(c, -1, -1);
 * Displays a new <CODE>JWindow</CODE> as a splash screen using the
 * specified component as the content. The component should have all
 * the content it needs to display, like borders, images, text, etc.
 * The splash screen is centered on monitor. If width and height are
 * <CODE><= 0</CODE>, the default size of the component will be used
 * to size the splash screen.
 * 
 * The window object is returned to allow the application to manipulate
 * it, (such as move it or resize it, etc.). However, do not
 * dispose the window directly. Instead, use <CODE>hideSplash()</CODE>
 * to allow internal cleanup.
 * 
 * If the component is <CODE>null</CODE>, a default component with the
 * frame title and icon will be created.
 * 
 * The splash screen window will be passed the same
 * <CODE>GraphicsConfiguration</CODE> as this frame uses.
 * @param c the splash screen contents
 * @param w the splash screen width
 * @param h the splash screen height
 * @return the window object
 * @see #showSplash(Component)
 * @see #hideSplash()
 public JWindow showSplash(Component c, int w, int h) {
 // if a splash window was already created...
 if(splash != null) {
 // if it's showing, leave it; else null it
 if(splash.isShowing()) {
 return splash;
 } else {
 splash = null;
 // if the component is null, then create a generic splash screen
 // based on the frame title and icon
 if(c == null) {
 JPanel p = new JPanel();
 p.setBorder(BorderFactory.createCompoundBorder(
 BorderFactory.createRaisedBevelBorder(),
 BorderFactory.createEmptyBorder(10, 10, 10, 10)
 JLabel l = new JLabel("Loading application...");
 if(getTitle() != null) {
 l.setText("Loading " + getTitle() + "...");
 if(getIconImage() != null) {
 l.setIcon(new ImageIcon(getIconImage()));
 p.add(l);
 c = p;
 splash = new JWindow(this, getGraphicsConfiguration());
 splash.getContentPane().add(c);
 splash.pack();
 // set the splash screen size
 if(w > 0 && h > 0) {
 splash.setSize(w, h);
 } else {
 splash.setSize(c.getPreferredSize().width, c.getPreferredSize().height);
 centerComponent(splash);
 splash.show();
 return splash;
 * Disposes the splash window.
 * @see #showSplash(Component, int, int)
 * @see #showSplash(Component)
 public void hideSplash() {
 if(splash != null) {
 splash.dispose();
 splash = null;
 * Runs an initializer <CODE>Runnable</CODE> object in a new thread.
 * The initializer object should handle application initialization
 * steps. A typical use would be:
 * <OL>
 * <LI>Create the frame.
 * <LI>Create the splash screen component.
 * <LI>Call <CODE>showSplash()</CODE> to display splash screen.
 * <LI>Run the initializer, in which:
 * <UL>
 * <LI>Build the UI contents of the frame.
 * <LI>Perform other initialization (load settings, data, etc.).
 * <LI>Pack and show the frame.
 * <LI>Call <CODE>hideSplash()</CODE>.
 * </UL>
 * </OL>
 * 
 * NOTE: Since this will be done in a new thread that is
 * external to the event thread, any updates to the splash screen that
 * might be done should be triggered through with
 * <CODE>SwingUtilities.invokeAndWait(Runnable)</CODE>.
 * @param r the <CODE>Runnable</CODE> initializer
 public void runInitializer(Runnable r) {
 Thread t = new Thread(r);
 t.start();
 * Shows the frame centered on the screen.
 public void showCentered() {
 centerComponent(this);
 this.show();
 * Checks the busy state.
 * @return <CODE>true</CODE> if the frame is disabled;
 * <CODE>false</CODE> if the frame is enabled
 * @see #setBusy(boolean)
 public boolean isBusy() {
 return this.busy;
 * Sets the busy state. When busy, the glasspane is shown which will
 * consume all mouse and keyboard events, and a wait cursor is
 * set for the frame.
 * @param busy if <CODE>true</CODE>, disables frame;
 * if <CODE>false</CODE>, enables frame
 * @see #getBusy()
 public void setBusy(boolean busy) {
 // only set if changing
 if(this.busy != busy) {
 this.busy = busy;
 // If busy, keep current glass pane to put back when not
 // busy. This is done in case the application is using
 // it's own glass pane for something special.
 if(busy) {
 defaultGlassPane = getGlassPane();
 setGlassPane(glassPane);
 } else {
 setGlassPane(defaultGlassPane);
 defaultGlassPane = null;
 glassPane.setVisible(busy);
 glassPane.setCursor(busy ?
 Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR) :
 Cursor.getDefaultCursor()
 setCursor(glassPane.getCursor());
 * Handle key typed events. Consumes the event for the glasspane
 * when the frame is busy.
 * @param ke the key event
 public void keyTyped(KeyEvent ke) {
 ke.consume();
 * Handle key released events. Consumes the event for the glasspane
 * when the frame is busy.
 * @param ke the key event
 public void keyReleased(KeyEvent ke) {
 ke.consume();
 * Handle key pressed events. Consumes the event for the glasspane
 * when the frame is busy.
 * @param ke the key event
 public void keyPressed(KeyEvent ke) {
 ke.consume();
 * Handle mouse clicked events. Consumes the event for the glasspane
 * when the frame is busy.
 * @param me the mouse event
 public void mouseClicked(MouseEvent me) {
 me.consume();
 * Handle mouse entered events. Consumes the event for the glasspane
 * when the frame is busy.
 * @param me the mouse event
 public void mouseEntered(MouseEvent me) {
 me.consume();
 * Handle mouse exited events. Consumes the event for the glasspane
 * when the frame is busy.
 * @param me the mouse event
 public void mouseExited(MouseEvent me) {
 me.consume();
 * Handle mouse pressed events. Consumes the event for the glasspane
 * when the frame is busy.
 * @param me the mouse event
 public void mousePressed(MouseEvent me) {
 me.consume();
 * Handle mouse released events. Consumes the event for the glasspane
 * when the frame is busy.
 * @param me the mouse event
 public void mouseReleased(MouseEvent me) {
 me.consume();
 * Centers the component <CODE>c</CODE> on the screen.
 * @param c the component to center
 * @see #centerComponent(Component, Component)
 public static void centerComponent(Component c) {
 centerComponent(c, null);
 * Centers the component <CODE>c</CODE> on component <CODE>p</CODE>.
 * If <CODE>p</CODE> is null, the component <CODE>c</CODE> will be
 * centered on the screen.
 * @param c the component to center
 * @param p the parent component to center on or null for screen
 * @see #centerComponent(Component)
 public static void centerComponent(Component c, Component p) {
 if(c != null) {
 Dimension d = (p != null ? p.getSize() :
 Toolkit.getDefaultToolkit().getScreenSize()
 c.setLocation(
 Math.max(0, (d.getSize().width/2) - (c.getSize().width/2)),
 Math.max(0, (d.getSize().height/2) - (c.getSize().height/2))
 * Main method. Used for testing.
 * @param args the arguments
 public static void main(String[] args) {
 final AppFrame f = new AppFrame("Test Application",
 new ImageIcon("center.gif"));
 f.showSplash(null);
 f.runInitializer(new Runnable() {
 public void run() {
 f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 f.getContentPane().add(new JButton("this is a frame"));
 f.pack();
 f.setSize(300, 400);
 try {
 Thread.currentThread().sleep(3000);
 } catch(Exception e) {}
 f.showCentered();
 f.setBusy(true);
 try {
 Thread.currentThread().sleep(100);
 } catch(Exception e) {}
 f.hideSplash();
 try {
 Thread.currentThread().sleep(3000);
 } catch(Exception e) {}
 f.setBusy(false);
"Useful Code of the Day" is supplied by the person who posted this message. This code is not guaranteed by any warranty whatsoever. The code is free to use and modify as you see fit. The code was tested and worked for the author. If anyone else has some useful code, feel free to post it under this heading.

Hi
Thanks fo this piece of code. This one really help me
Deepa

Splash Screen that fades in smoothly...

Is there some code somewhere?
Or how can I realize that with Swing?
Hope you can help me... ;)
Greetz
Sambale

Ok... Guess you didn't understand it right...
I want my splash screen to fade smoothly from 0%
(invisible) over 50 % (semi-invisible) to 100%
(full).
It means I need a method just like setTransparency(
values from 0 to 100).
D'you know what I mean?The top level Java components (Frame and Window) are always 100% opaque. In order to do what you want you have to use the java.awt.Robot class to grab a snapshot of the background where the splash screen will be displayed and then paint your semi-transparent image over the top of it using a thread and AlphaComposite to tweak the transparency over time. Not 100% accurate but good enough to fool most people. Here's an example showing the concepts.
import java.awt.AWTException;
import java.awt.AlphaComposite;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.net.URL;
import javax.imageio.ImageIO;
import javax.swing.JPanel;
import javax.swing.JWindow;
import javax.swing.Timer;
public class FadeImagePanel extends JPanel {
 private Image image;
 private Image bgImage;
 private float alpha = 0.0f;
 private Dimension PREF_SIZE;
 FadeImagePanel(URL imageLocation) throws IOException {
 this.image = ImageIO.read(imageLocation);
 initialize();
 private void initialize() {
 captureBackground();
 startAnimation();
 private void startAnimation() {
 Thread t = new Thread(new Runnable() {
 public void run() {
 while (alpha < 1.0f) {
 try {
 Thread.sleep(20);
 repaint();
 alpha += 0.05f;
 if (alpha > 1.0f) {
 alpha = 1.0f;
 } catch (InterruptedException ie) {
 ie.printStackTrace();
 t.start();
 public Point getPreferredSplashLocation() {
 Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
 int w = screenSize.width;
 int h = screenSize.height;
 int x = (w - image.getWidth(this))/2;
 int y = (h - image.getHeight(this))/2;
 return new Point(x,y);
 private void captureBackground() {
 Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
 int w = screenSize.width;
 int h = screenSize.height;
 int x = (w - this.getPreferredSize().width)/2;
 int y = (h - this.getPreferredSize().height)/2;
 Rectangle splashRectangle = new Rectangle(x,y,w,h);
 try {
 Robot r = new Robot();
 bgImage = r.createScreenCapture(splashRectangle);
 } catch (AWTException awte) {
 awte.printStackTrace();
 protected void paintComponent(Graphics g) {
 Graphics2D g2d = (Graphics2D)g;
 g2d.drawImage(bgImage, 0, 0, this);
 AlphaComposite comp = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha);
 g2d.setComposite(comp);
 g.drawImage(image, 0, 0, this);
 public Dimension getPreferredSize() {
 if (PREF_SIZE == null) {
 PREF_SIZE = new Dimension(image.getWidth(this), image.getHeight(this));
 return PREF_SIZE;
 public static void main(String[] args) throws IOException {
 final JWindow window = new JWindow();
 URL imageURL = FadeImagePanel.class.getResource("splash.png");
 FadeImagePanel fip = new FadeImagePanel(imageURL);
 window.add(fip);
 window.pack();
 window.setLocation(fip.getPreferredSplashLocation());
 window.setVisible(true);
 new Timer(3000, new ActionListener() {
 public void actionPerformed(ActionEvent ae) {
 System.exit(0);
 }).start();
 }

How can i calculate the percentages and update the progressBar in the splash screen form ?

I created a splash screen form:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Threading;
namespace GetHardwareInfo
public partial class SplashScreen : Form
public SplashScreen()
InitializeComponent();
private Mutex mutex = new Mutex();
public void SyncedClose()
mutex.WaitOne();
this.Close();
mutex.ReleaseMutex();
public void UpdateProgressBar(int percentage)
if (this.InvokeRequired)
mutex.WaitOne();
if (!IsDisposed)
this.BeginInvoke(new Action<int>(UpdateProgresPRV), percentage);
mutex.ReleaseMutex();
else
UpdateProgresPRV(percentage);
private void UpdateProgresPRV(int per)
if (progressBar1.IsDisposed) return;
progressBar1.Value = per;
private void SplashScreen_Load(object sender, EventArgs e)
The SplashScreen form have in the designer image and on the image a progressBar1.
Then in form1 i did in the top:
List<string> WmiClassesKeys = new List<string>();
IEnumerable<Control> controls;
string comboBoxesNames;
SplashScreen splash = new SplashScreen();
And in the constructor:
controls = LoopOverControls.GetAll(this, typeof(ComboBox));
string[] lines = File.ReadAllLines(@"c:\wmiclasses\wmiclasses1.txt");
foreach (string line in lines)
foreach (ComboBox comboBox in controls.OfType<ComboBox>())
if (line.StartsWith("ComboBox"))
comboBoxesNames = line.Substring(14);
else
if (line.StartsWith("Classes"))
if (comboBox.Name == comboBoxesNames)
comboBox.Items.Add(line.Substring(14));
foreach (ComboBox comboBox in controls.OfType<ComboBox>())
comboBox.SelectedIndex = 0;
The method GetAll is to loop over specific controls:
public static IEnumerable<Control> GetAll(Control control, Type type)
var controls = control.Controls.Cast<Control>();
return controls.SelectMany(ctrl => GetAll(ctrl, type))
.Concat(controls)
.Where(c => c.GetType() == type);
When i'm running the program it's taking some time to make the foreach loops in this time i need to show the SplashScreen and update the progressBar untill the foreach loops over.

Don't use Application.Doevents. It's not required and can cause problems.
I do not really grasp the approach you are taking here. So let me make a different suggestion:
SplashScreen:
using System;
using System.Windows.Forms;
using System.Threading;
namespace WindowsFormsApplication1
public partial class SplashScreen : Form
private static SplashScreen DefaultInstance;
public SplashScreen()
InitializeComponent();
public static void ShowDefaultInstance()
Thread t = new Thread(TMain);
t.Name = "SplashUI";
t.Start();
public static void CloseDefaultInstance()
DefaultInstance.Invoke(new Action(DefaultInstance.Close));
private static void TMain()
DefaultInstance = new SplashScreen();
DefaultInstance.Show();
Application.Run(DefaultInstance);
public static void UpdateProgress(int Progress)
if (DefaultInstance.InvokeRequired)
DefaultInstance.Invoke(new Action<int>(UpdateProgress), Progress);
else
DefaultInstance.progressBar1.Value = Progress;
Form1:
using System.Windows.Forms;
namespace WindowsFormsApplication1
public partial class Form1 : Form
public Form1()
InitializeComponent();
SplashScreen.ShowDefaultInstance();
for (int i = 1; i<=100; i++)
System.Threading.Thread.Sleep(20); // simulates work
SplashScreen.UpdateProgress(i);
SplashScreen.CloseDefaultInstance();
EDIT: Please note that the progressbar itself is being animated by the system, so it might look slower than it really is. To workaround this, there are solutions available (you'll find them) that first set the value one higher than necessary, then
back to the actual value.
Edit #2: You do need a different thread, otherwise the UI is locked while the loop is running in your Form1's constructor.
Armin

Splash screen needs to keep on top

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