JDK6新特性:最小化至托盘

 

参考资料：老紫竹的博客： http://blog.youkuaiyun.com/java2000_net；JDK6API

 

1. 
2. package toolkit;
4. import java.awt.AWTException;
5. import java.awt.Image;
6. import java.awt.MenuItem;
7. import java.awt.PopupMenu;
8. import java.awt.SystemTray;
9. import java.awt.Toolkit;
10. import java.awt.TrayIcon;
11. import java.awt.event.ActionEvent;
12. import java.awt.event.ActionListener;
14. import javax.swing.JOptionPane;
16. /**
17.  * JDK6新特性:最小化至托盘
18.  */
19. public class ToolkitDemo {
20.     
21.     Toolkit toolkit;
22.     
23.     public static void main(String[] args) {
24.         // TODO Auto-generated method stub
25.         ToolkitDemo demo=new ToolkitDemo();
26.         demo.setMenu();
27.     }
28.     
29.     public void setMenu(){
30.         //不支持系统托盘的平台，此时会抛出UnsupportedOperationException的异常
31.         if (!SystemTray.isSupported()) {
32.             
33.             JOptionPane.showMessageDialog(null, "不支持系统托盘");
34.             
35.         }else{
36.             
37.             SystemTray tray = SystemTray.getSystemTray();//获取表示桌面托盘区的 SystemTray 实例
38.             toolkit = Toolkit.getDefaultToolkit();//获取默认工具包
39.             
40.             Image image = toolkit.getImage("src/images/046.gif");
41.             
42.             PopupMenu menu = new PopupMenu();//此类实现能够在组件中的指定位置上动态弹出的菜单
43.         
44.             MenuItem closemenu = new MenuItem("退出");
45.                         
46.             this.closeActionPerformed(closemenu);
47.             menu.add(closemenu);
48.             
49.             /**
50.              * 表示可以添加到系统托盘的托盘图标。
51.              * TrayIcon 可以包含工具提示（文本）、图像、弹出菜单和一组与之关联的侦听器
52.              * **/
53.             TrayIcon icon = new TrayIcon(image, "系统托盘", menu);
54.             icon.setImageAutoSize(true);//设置自动调整大小的属性
55.             try {
56.                 tray.add(icon);
57.             } catch (AWTException e1) {
58.                 // TODO Auto-generated catch block
59.                 e1.printStackTrace();
60.             }
62.         }
63.         
64.     }
65.     
66.     /**
67.      * 关闭托盘时触发事件
68.      * **/
69.     private void closeActionPerformed(MenuItem menu){
70.         menu.addActionListener(new ActionListener() {
71.           public void actionPerformed(ActionEvent e) {
72.               
73.               int isExit=JOptionPane.showConfirmDialog(null, "您真的要退出吗?","退出询问",JOptionPane.YES_NO_OPTION);
74.               if(isExit==JOptionPane.YES_OPTION){
75.                   
76.                   toolkit.beep();// 发出一个音频嘟嘟声
77.                   
78.                   System.exit(0);
79.               }
80.           }
81.         });
82.     }
84. }