我用http://blog.sina.com.cn/s/blog_4b6047bc010009f0.html最底下的例子做了个登录闪屏，
但我想在Jpanel上添加个Toggle按钮，点击开始时，才会让进度条显示。
可是启动后，那个Button无法点击，Windows 7一直显示蓝色转动的小圈。SplashPanel.java
public void keyPressed(KeyEvent e) {
if(e.getKeyCode()==13)
System.out.println("enter pressed");
stoppro = true;
}主程序：
SplashPanel panel=new SplashPanel();
SplashManager manager=new SplashManager(panel);
panel.setMessage("Start to download updating...");
manager.repaint();
for(int i=0;i<100;i++){
panel.setProgress(i);
manager.repaint();
try{Thread.sleep(100);}catch(Exception e){}
}
manager.closeSplash();
但我想在Jpanel上添加个Toggle按钮，点击开始时，才会让进度条显示。
可是启动后，那个Button无法点击，Windows 7一直显示蓝色转动的小圈。SplashPanel.java
public void keyPressed(KeyEvent e) {
if(e.getKeyCode()==13)
System.out.println("enter pressed");
stoppro = true;
}主程序：
SplashPanel panel=new SplashPanel();
SplashManager manager=new SplashManager(panel);
panel.setMessage("Start to download updating...");
manager.repaint();
for(int i=0;i<100;i++){
panel.setProgress(i);
manager.repaint();
try{Thread.sleep(100);}catch(Exception e){}
}
manager.closeSplash();
主程序： public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
SeaMonitorMainApp window = new SeaMonitorMainApp();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}public SeaMonitorMainApp() {
initialize();
}
private void initialize() {
try {UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());} catch (Exception ex){}
//New an instance of the progress panel.
SplashPanel panel=new SplashPanel();
//Encapsulate the panel into splash manager.
SplashManager manager=new SplashManager(panel);
//Set some indication message.
panel.setMessage("Start to download updating...");
//Note every time you update panel, you have to manually call SplashManager.repaint to update the screen.
manager.repaint();
for(int i=0;i<100;i++){
//Do some time-consuming work and signal the progress to splash manager.
panel.setProgress(i);
//Note every time you update panel, you have to manually call SplashManager.repaint to update the screen.
manager.repaint();
try{Thread.sleep(100);}catch(Exception e){}
}
manager.closeSplash();
frame = new JFrame();
frame.setFont(new Font("微软雅黑", Font.PLAIN, 9));
frame.setTitle("抽签分组程序");
frame.setBounds(200, 200, 620, 480);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Toolkit toolkit = Toolkit.getDefaultToolkit();
int x = (int) (toolkit.getScreenSize().getWidth() - frame.getWidth()) / 2;
int y = (int) (toolkit.getScreenSize().getHeight() - frame.getHeight()) / 2;
frame.setLocation(x, y); // frame.dispose();
menuBar = new JMenuBar();
frame.setJMenuBar(menuBar); JMenu menu = new JMenu("名单");
menuBar.add(menu); JMenuItem menuItem = new JMenuItem("录入名单");
menuItem.addMouseListener(new MouseAdapter() {
@Override
public void mousePressed(MouseEvent e) {
teamnamelogging();
}
});
//***** 后面代码省略
SplashPanelimport java.awt.Color;
import java.awt.Font;
import java.util.StringTokenizer;
import javax.swing.JToggleButton;
import javax.swing.GroupLayout.Alignment;
import javax.swing.GroupLayout;
import javax.swing.LayoutStyle.ComponentPlacement;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;/**
*
* @author William Chen
*/
public class SplashPanel extends javax.swing.JPanel{
/** Creates new form SplashPanel */
public SplashPanel() {
initComponents();
}
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
// <editor-fold defaultstate="collapsed" desc=" 生成的代码 ">
private void initComponents() {
lblMessage = new javax.swing.JLabel();
pBar = new javax.swing.JProgressBar(); lblMessage.setText("\u53d1\u73b0\u65b0\u7248\u672c\u7684\u8f6f\u4ef6\uff0c\u6b63\u5728\u5347\u7ea7\u4e2d\uff0c\u8bf7\u7a0d\u5019...");
JToggleButton toggleButton = new JToggleButton("\u5F00\u59CB");
toggleButton.addMouseListener(new MouseAdapter() {
@Override
public void mousePressed(MouseEvent e) {
stoppro = true;
}
}); javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
layout.setHorizontalGroup(
layout.createParallelGroup(Alignment.TRAILING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(Alignment.TRAILING)
.addComponent(lblMessage, Alignment.LEADING, GroupLayout.DEFAULT_SIZE, 430, Short.MAX_VALUE)
.addComponent(pBar, Alignment.LEADING, GroupLayout.DEFAULT_SIZE, 430, Short.MAX_VALUE))
.addContainerGap())
.addGroup(Alignment.TRAILING, layout.createSequentialGroup()
.addComponent(toggleButton)
.addGap(26))))
);
layout.setVerticalGroup(
layout.createParallelGroup(Alignment.TRAILING)
.addGroup(layout.createSequentialGroup()
.addContainerGap(188, Short.MAX_VALUE)
.addComponent(toggleButton)
.addGap(44)
.addComponent(lblMessage, GroupLayout.PREFERRED_SIZE, 15, GroupLayout.PREFERRED_SIZE)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(pBar, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addContainerGap())
);
this.setLayout(layout);
}// </editor-fold>
public void setMessage(String info) {
lblMessage.setText(info);
} public void setProgress(int percent) {
pBar.setValue(percent);
}
public int getProgress() {
return pBar.getValue();
}
public boolean getStoppro() {
return stoppro;
} public javax.swing.JLabel getLblMessage() {
return lblMessage;
} public void setLblMessage(javax.swing.JLabel lblMessage) {
this.lblMessage = lblMessage;
} public javax.swing.JProgressBar getpBar() {
return pBar;
} public void setpBar(javax.swing.JProgressBar pBar) {
this.pBar = pBar;
}
private boolean stoppro = false;
private javax.swing.JLabel lblMessage;
private javax.swing.JProgressBar pBar;
}
//This transparent color is used for wipe out background for repainting.
private static Color transparentColor=new Color(0,0,0,0);
//Graphics object obtained from splash screen
private Graphics2D graphics;
//The Swing component you are about to render on splash screen.
private JComponent component;
//The splash instance obtained from system.
private SplashScreen splash=SplashScreen.getSplashScreen();
//The splash bounds, which is identical to that of splash image.
private Rectangle bounds;
/** Creates a new instance of SplashManager */
public SplashManager(JComponent comp) {
if(splash==null)
throw new IllegalArgumentException("Splash Screen not set!");
//Initialize these fields
bounds=splash.getBounds();
graphics=splash.createGraphics();
//Set the background to transparent so that later you can refresh your rendering.
graphics.setBackground(transparentColor);
component=comp;
//Note you must disable the double-buffer feature of the component,
//or else double-buffer image might
//overwrite the splash image background.
component.setDoubleBuffered(false);
//Note this container component must be transparent so that the image is not covered.
component.setOpaque(false);
//Resize the container component to the exact size of the splash image.
component.setSize(splash.getSize());
//This is crucial. For a container usually use layout manager to layout their components.
//Without swing system, you have to manually layout the children components.
LayoutManager layout=component.getLayout();
layout.layoutContainer(component);
}
/**
* This method is counterpart of swing component's repaint.
* The difference is that you have to call this method manually without
* swing event system.
*/
public void repaint(){
//First only when splash is visible
if(splash.isVisible()){
//Wipe out background, note this is only to wipe out
//the background of overlay buffered image, not that you
//wipe out the splash image.
graphics.clearRect(0, 0, bounds.width, bounds.height);
//Delegate painting to swing component's painting method
component.paint(graphics);
//Again, you have to manually update the splash. All the above
//work is down in background image, not directly to the screen.
//update method flush these changes to the screen.
splash.update();
}
}
/**
* Close the splash
*/
public void closeSplash(){
if(splash.isVisible())
splash.close();
}
}