用JAVA实现程序最小化到托盘区

下面的这个程序简单地实现了把java应用程序缩小到托盘的方法.

程序运行的jdk要是1.6才行,因为这是J2SDK1.6新加的一些类和方法.

import java.awt.*;
import java.io.*;
import javax.swing.*;
import java.awt.event.*;
import javax.imageio.ImageIO;

public class Test extends JFrame{
    private TrayIcon trayIcon;//托盘图标
    private SystemTray systemTray;//系统托盘
        
    public Test()
    {
        super("系统托盘图标");
        systemTray = SystemTray.getSystemTray();//获得系统托盘的实例
        setSize(150,150);
                this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                this.setVisible(true);   
        try {
            trayIcon = new TrayIcon(ImageIO.read(new File("0.gif")));
            systemTray.add(trayIcon);//设置托盘的图标，0.gif与该类文件同一目录
        }
        catch (IOException e1) {e1.printStackTrace();}
        catch (AWTException e2) {e2.printStackTrace();}
       
        this.addWindowListener(
                new WindowAdapter(){  
                    public void windowIconified(WindowEvent e){  
                        dispose();//窗口最小化时dispose该窗口
                    }  
                });
       
        trayIcon.addMouseListener(
                new MouseAdapter(){
                    public void mouseClicked(MouseEvent e){
                        if(e.getClickCount() == 2)//双击托盘窗口再现
                            setExtendedState(Frame.NORMAL);
                            setVisible(true);
                    }
                });       
    }  

    public static void main(String args[])
    {
        new Test();
    }
}

 

 

另：

package awt;

import java.awt.AWTException;
import java.awt.MenuItem;
import java.awt.PopupMenu;
import java.awt.SystemTray;
import java.awt.TrayIcon;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.ImageIcon;
import javax.swing.JFrame;


public class TrayDemo extends JFrame {

private TrayIcon trayIcon = null; // 托盘图标

private SystemTray tray = null; // 本操作系统托盘的实例

public static TrayDemo trayDemo = new TrayDemo();

private TrayDemo() {
   init();
}

public void init() {
   if (SystemTray.isSupported()) { // 如果操作系统支持托盘
    this.tray();
   }
   this.setSize(300, 200); 
   this.setResizable(false);
   // 窗口关闭时触发事件 
   addWindowListener(new WindowAdapter() {
    public void windowClosing(WindowEvent e) {
     System.exit(0);
    }

    public void windowIconified(WindowEvent e) {   
     try {
      tray.add(trayIcon); // 将托盘图标添加到系统的托盘实例中
      //setVisible(false); // 使窗口不可视
      dispose();
     } catch (AWTException ex) {
      ex.printStackTrace();
     }
    }  
   });

}

private void tray() {

   tray = SystemTray.getSystemTray(); // 获得本操作系统托盘的实例
   ImageIcon icon = new ImageIcon("images/30.gif"); // 将要显示到托盘中的图标

   PopupMenu pop = new PopupMenu(); // 构造一个右键弹出式菜单
   MenuItem show = new MenuItem("打开程序(s)");
   MenuItem exit = new MenuItem("退出程序(x)");
   pop.add(show);
   pop.add(exit);
   trayIcon = new TrayIcon(icon.getImage(), "车辆管理系统", pop);

   /**
   * 添加鼠标监听器，当鼠标在托盘图标上双击时，默认显示窗口
   */
   trayIcon.addMouseListener(new MouseAdapter() {
    public void mouseClicked(MouseEvent e) {
     if (e.getClickCount() == 2) { // 鼠标双击
      tray.remove(trayIcon); // 从系统的托盘实例中移除托盘图标
      setExtendedState(JFrame.NORMAL);
      setVisible(true); // 显示窗口
      toFront();    
     }
    }
   });
   show.addActionListener(new ActionListener() { // 点击“显示窗口”菜单后将窗口显示出来
      public void actionPerformed(ActionEvent e) {
       tray.remove(trayIcon); // 从系统的托盘实例中移除托盘图标
       setExtendedState(JFrame.NORMAL);
       setVisible(true); // 显示窗口
       toFront();
      }
     });
   exit.addActionListener(new ActionListener() { // 点击“退出演示”菜单后退出程序
      public void actionPerformed(ActionEvent e) {
       System.exit(0); // 退出程序
      }
     });

}

/**
* 显示信息
*/
// 返回单一的实例对象
public static TrayDemo getInstanceTrayDemo() {
   return trayDemo;
}

// 处理窗口事件

}