Java Swing 托盘闪烁Demo实例

package ui;import java.awt.AWTException;
import java.awt.EventQueue;
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 javax.swing.ImageIcon;
import javax.swing.JFrame;public class TuoPanDemo extends JFrame
{
private static final long serialVersionUID = 1L; // 当前操作系统的托盘对象
private SystemTray sysTray; // 托盘图标
private TrayIcon trayIcon; // 图片
private ImageIcon icon = null; // 消息是否需要闪烁。默认false不需要闪烁。这个状态需要跨线程修改的。
// 所以为了健壮代码、线程安全，注意使用关键字volatile
private volatile boolean msgNeedFlash = false; public static void main(String[] args)
{
EventQueue.invokeLater(new Runnable()
{
public void run()
{
try
{
TuoPanDemo frame = new TuoPanDemo();
frame.setVisible(true);
}
catch (Exception e)
{
e.printStackTrace();
}
}
});
} public TuoPanDemo()
{
setBounds(100, 100, 450, 300);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);// 这句可以注释掉的，用托盘右键退出程序即可。
getContentPane().setLayout(null);
setLocationRelativeTo(null); createTrayIcon(); // 这里可以开启检测是否有消息的线程，如果有，就闪烁图标
new Thread(runnableFlash).start();
} private void createTrayIcon()
{
// 实例化当前操作系统的托盘对象
sysTray = SystemTray.getSystemTray(); // 实例化一个图标
icon = new ImageIcon(TuoPanDemo.class.getResource("/img/rabbit_24px.png")); // Java托盘程序必须有一个右键菜单
PopupMenu popupMenu = new PopupMenu();
MenuItem menuOpen = new MenuItem("Open Msg");
MenuItem menuExit = new MenuItem("Exit");
popupMenu.add(menuOpen);
popupMenu.add(menuExit); // 为右键弹出菜单项添加事件
menuOpen.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent e)
{
EventQueue.invokeLater(new Runnable()
{
@Override
public void run()
{
Msg msg = new Msg();
msg.setVisible(true); // 显示窗口
msg.toFront(); // 显示窗口到最前端
}
}); msgNeedFlash = false; // 消息打开了，就不要闪烁了
}
});
menuExit.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent e)
{
System.exit(0);
}
}); // 实例化托盘图标
trayIcon = new TrayIcon(icon.getImage(), "消息盒子", popupMenu); // 图标大小自适应
trayIcon.setImageAutoSize(true); // 将托盘图标添入托盘
try
{
sysTray.add(trayIcon);
}
catch (AWTException e1)
{
e1.printStackTrace();
} } private Runnable runnableFlash = new Runnable()
{
@Override
public void run()
{
while (true)
{
if (msgNeedFlash == true)// 如果新消息需要闪烁
{
try
{
// 闪动消息的空白时间
trayIcon.setImage(new ImageIcon("").getImage());
Thread.sleep(500);
// 闪动消息的提示图片
trayIcon.setImage(icon.getImage());
Thread.sleep(500);
}
catch (Exception e)
{
e.printStackTrace();
}
}
else //如果不需要闪烁，就重置托盘图标
{
trayIcon.setImage(icon.getImage());
try
{
Thread.sleep(1000 * 10);//10秒闪烁一次。可以在这里读数据库是否有新的审批
msgNeedFlash = true;
}
catch (InterruptedException e)
{
e.printStackTrace();
}
}
}
}
};
}

package ui;import java.awt.EventQueue;import javax.swing.JFrame;
import javax.swing.JLabel;public class Msg extends JFrame
{
private static final long serialVersionUID = 1L; public static void main(String[] args)
{
EventQueue.invokeLater(new Runnable()
{
public void run()
{
try
{
Msg frame = new Msg();
frame.setVisible(true);
}
catch (Exception e)
{
e.printStackTrace();
}
}
});
} public Msg()
{
setBounds(100, 100, 260, 120);
setResizable(false);
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
getContentPane().setLayout(null); JLabel label = new JLabel("您有新的消息");
label.setBounds(77, 30, 100, 15);
getContentPane().add(label); }
}