j2me 等待的screen

lawty · 发表于 4-2-2010 09:54 PM

请问要怎么弄一个loading的screen.....
小弟已经试了很多天都不可以。。。。

通常用在login那里的。。。
当用户要登入的时候，
先显示那个loading。。。
然后才进到里面。。。。。。

就是那个loading screen 小弟我弄不到。。。。。

请大大们帮忙。。。。。。。

谢谢。。。。

davidbilly87 · 发表于 5-2-2010 02:29 AM

google java "splash screen" 就有了...我有做过在我的FYP里...

lawty · 发表于 5-2-2010 11:39 AM

我看到的都是一些需要
keypress才消失的。。。
可以有自动的吗？？

davidbilly87 · 发表于 6-2-2010 01:47 PM

本帖最后由 davidbilly87 于 6-2-2010 02:22 PM 编辑

我看到的都是一些需要
keypress才消失的。。。
可以有自动的吗？？
lawty 发表于 5-2-2010 11:39

我的就是loading完,就自动进另外个function了......

我的class :

import javax.swing.*;
import java.awt.*;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionAdapter;
/**
* This class represents an indicator for the startup progress
*
* @version 1.0, 25-04-2003
* @author Logical
* @see JWindow
*/
public class SplashScreen extends JWindow
{
/* The background image file */
private static final String bgFile = "SystemPic/SplashScreen2.png";//这个是splash screen的照片URL
private static Point point = new Point();
/* The information shown at the top of the screen */
//private String groupinfo = "<html><body><center><br> </body></html>";
/* The color of the font shown at the top */
private Color fontColor = new Color(0, 0, 0);
/* Shows what is currently loading */
private JLabel currentLoadedObject = new JLabel();
/* The progress bar indicating how long it will take before completion */
private JProgressBar progress = new JProgressBar();
/**
* Constructs a loader object to keep track of the progress
*/
public SplashScreen()
{
setSize(480, 350);
Dimension screensize = Toolkit.getDefaultToolkit().getScreenSize();
setLocation((int)(screensize.getWidth()/2)-200, (int)(screensize.getHeight()/2)-125);
getContentPane().setLayout(new BorderLayout());
JPanel info = new JPanel();
info.setLayout(new BorderLayout());
// JLabel grpInfo = new JLabel(groupinfo, SwingConstants.CENTER);
// info.add(grpInfo, BorderLayout.NORTH);
JLabel bg = new JLabel();
bg.setIcon(new ImageIcon(bgFile));
info.add(bg, BorderLayout.CENTER);
getContentPane().add(info, BorderLayout.CENTER);
JPanel p = new JPanel();
p.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
p.setLayout(new BorderLayout());
currentLoadedObject.setBorder(BorderFactory.createEmptyBorder(0, 5, 0, 5));
p.add(currentLoadedObject, BorderLayout.WEST);
progress.setStringPainted(true);
p.add(progress, BorderLayout.CENTER);
getContentPane().add(p, BorderLayout.SOUTH);
setVisible(true);
}
/**
* Let the startup screen disapear
*/
public void loadingFinished()
{
currentLoadedObject.setText("Starting...");
try{ Thread.sleep(500); }
catch(InterruptedException e){ e.printStackTrace(); }
setVisible(false);
dispose();
}
public void SystemLogIn ()
{
final SystemLogIn frame = new SystemLogIn();//这个是loading完后auto去下个function的
frame.setLocationRelativeTo(null);
frame.setVisible(true);
frame.setIconImage(Toolkit.getDefaultToolkit().getImage("SystemPic/Orange-128.png"));
/*frame.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent e) {
point.x = e.getX();
point.y = e.getY();
}
});
frame.addMouseMotionListener(new MouseMotionAdapter() {
public void mouseDragged(MouseEvent e) {
Point p = frame.getLocation();
frame.setLocation(p.x + e.getX() - point.x,
p.y + e.getY() - point.y);
}
});*/
}
/**
* Constructs the world
*
* @param object the object that is currently loading
* @param maxSteps indicates when the object is 100% loaded
* @param currentStep indicates how far we are at this moment
*/
public synchronized void updateLoadingProgress(String object, int maxSteps, int currentStep)
{
currentLoadedObject.setText(object);
//scale
progress.setMaximum(maxSteps);
progress.setValue(currentStep);
}
public static void main(String[] args)
{
SplashScreen loader = new SplashScreen();
//我放10个loop(每个以10%>20%>30%) , 你可以弄到100都可以
loader.updateLoadingProgress("Reading data...", 10, 1); goToSleep();
loader.updateLoadingProgress("Reading data...", 10, 2); goToSleep();
loader.updateLoadingProgress("Loading System...", 10, 3); goToSleep();
loader.updateLoadingProgress("Loading System...", 10, 4); goToSleep();
loader.updateLoadingProgress("Loading System...", 10, 5); goToSleep();
loader.updateLoadingProgress("Loading System...", 10, 6); goToSleep();
loader.updateLoadingProgress("Preparing...", 10, 7); goToSleep();
loader.updateLoadingProgress("Preparing...", 10, 8); goToSleep();
loader.updateLoadingProgress("Preparing...", 10, 9); goToSleep();
loader.updateLoadingProgress("Starting...", 10, 10); goToSleep();
loader.loadingFinished();
loader.SystemLogIn();
}
public static void goToSleep()
{
try{ Thread.currentThread().sleep(550);}//550 value 你要每隔 loading%到另个loading delay ms
catch(Exception e){}
}
}

复制代码

你自己慢慢研究.....

lawty · 发表于 7-2-2010 10:25 AM

谢谢你给提示。。。。
我会研究看看。。。。

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j2me 等待的screen

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