显示一定时间的帧

Question

I Have 3 classes, the main.class, login.class and then a splash-screen.class

my splash-screen doesn't have a main in it, it only runs when the main.class runs, problem is I want my splash screen to appear only for 3 seconds, then it must disappear and show the login .class (which just has controls to log in)

How do I do that?

At the moment when I run the main, both the splashscreen.class and login.class apear

Answer 1

Use a Swing Timer :

• display the splash frame
• create a Timer with a 3 seconds delay, and call setRepeats(false) on this timer. Its ActionListener should hide the splash frame, and show the Login frame
• start the timer

Answer 2

Code shown below might work for you:

 public static void showSplash(int duration) {
                SplashScreen splash1 = SplashScreen.getSplashScreen();
                if(splash1==null){
                File file1=new File("splash.jpg");
                String imgfile1=file1.getAbsolutePath();

                JWindow splash = new JWindow();
                JPanel content = (JPanel)splash.getContentPane();

                int width = 655;
                int height = 442;
                Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();
                int x = (screen.width-width)/2;
                int y = (screen.height-height)/2;
                splash.setBounds(x,y,width,height);

                JLabel label = new JLabel(new ImageIcon(imgfile1));
                content.add(label, BorderLayout.CENTER);
                splash.setVisible(true);
            // Wait a little while, maybe while loading resources
                try
                {
                    Thread.sleep(duration);
                } catch (Exception e) {}
                splash.setVisible(false);
                }
            }

You can call this method at the first line of your main() method.