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spalsh screen

sandeep kumar jangra
Greenhorn

Joined: Jan 12, 2005
Posts: 29
hi frenz ... i want to make a splash Screen that get disposed after main program screen shows up... but i m not sure of the time that will be taken by the main program... secondly if there is any problem in the main program than it should be intimated to the user...plz help

Sandeep Kumar
Ulf Dittmer
Marshal

Joined: Mar 22, 2005
Posts: 42930
    
  68
You can study (or use outright) any number of splashscreen classes. Some of them come with explanations on how to do and not to do splash screens.
Sunil Kumar Gupta
Ranch Hand

Joined: Aug 26, 2005
Posts: 824
Check this code



import javax.swing.*;
import java.awt.*;

public class SplashScreen extends JWindow {
BorderLayout borderLayout1 = new BorderLayout();
JLabel imageLabel = new JLabel();
JPanel southPanel = new JPanel();
FlowLayout southPanelFlowLayout = new FlowLayout();
JProgressBar progressBar = new JProgressBar();
ImageIcon imageIcon;

public SplashScreen(ImageIcon imageIcon) {
this.imageIcon = imageIcon;
try {
jbInit();
}
catch(Exception ex) {
ex.printStackTrace();
}
}

// note - this class created with JBuilder
void jbInit() throws Exception {
imageLabel.setIcon(imageIcon);
this.getContentPane().setLayout(borderLayout1);
southPanel.setLayout(southPanelFlowLayout);
southPanel.setBackground(Color.pink);
((JPanel)getContentPane()).setBorder(BorderFactory.createRaisedBevelBorder());
this.getContentPane().add(imageLabel, BorderLayout.CENTER);
this.getContentPane().add(southPanel, BorderLayout.SOUTH);
southPanel.add(progressBar, null);
this.pack();
}

public void setProgressMax(int maxProgress)
{
progressBar.setMaximum(maxProgress);
}

public void setProgress(int progress)
{
final int theProgress = progress;
SwingUtilities.invokeLater(new Runnable() {
public void run() {
progressBar.setValue(theProgress);
}
});
}

public void setProgress(String message, int progress)
{
final int theProgress = progress;
final String theMessage = message;
setProgress(progress);
SwingUtilities.invokeLater(new Runnable() {
public void run() {
progressBar.setValue(theProgress);
setMessage(theMessage);
}
});
}

public void setScreenVisible(boolean b)
{
final boolean boo = b;
SwingUtilities.invokeLater(new Runnable() {
public void run() {
setVisible(boo);
}
});
}

private void setMessage(String message)
{
if (message==null)
{
message = "";
progressBar.setStringPainted(false);
}
else
{
progressBar.setStringPainted(true);
}
progressBar.setString(message);
}

}////////////////////////////End//////////////////////////////////



import javax.swing.UIManager;
import javax.swing.ImageIcon;

public class SplashScreenMain {

SplashScreen screen;

public SplashScreenMain() {
// initialize the splash screen
splashScreenInit();
// do something here to simulate the program doing something that
// is time consuming
for (int i = 0; i <= 100; i++)
{
for (long j=0; j<50000; ++j)
{
String poop = " " + (j + i);
}
// run either of these two -- not both
screen.setProgress("Yo " + i, i); // progress bar with a message
//screen.setProgress(i); // progress bar with no message
}
splashScreenDestruct();
System.exit(0);
}

private void splashScreenDestruct() {
screen.setScreenVisible(false);
}

private void splashScreenInit() {
ImageIcon myImage = new ImageIcon("C:/sunil/sunil/myself/enter.gif");
screen = new SplashScreen(myImage);
screen.setLocationRelativeTo(null);
screen.setProgressMax(100);
screen.setScreenVisible(true);
}

public static void main(String[] args)
{
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
}
catch (Exception e) {
e.printStackTrace();
}
new SplashScreenMain();
}

}//////////////////////////////End ///////////////////////////////////



Enjoy


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