SWT中使用Tray和TrayItem这两个类来创建系统托盘和系统托盘项。
//为该系统托盘项注册事件
item.addListener( SWT.Show, listner ); //系统托盘显示
item.addListener( SWT.Hide , listner );//系统托盘隐藏
item.addListener( SWT.Selection , listner );//系统托盘单击选中
item.addListener( SWT.DefaultSelection , listner );//系统托盘双击选中
item.addListener( SWT.MenuDetect , listner );//系统托盘右击事件
package com.strongit.bridge.mainframe;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Tray;
import org.eclipse.swt.widgets.TrayItem;
import com.strongit.bridge.common.filepath.FilePath;
import com.strongit.bridge.common.swtdesigner.SWTResourceManager;
import com.strongit.bridge.common.util.ImageFactory;
public class TraySample {
public static void main(String[] args) {
Display display = new Display();
final Shell shell = new Shell(display);
// 创建系统托盘
final Tray tray = display.getSystemTray();
// 如果系统不支持托盘部件
if (tray == null) {
System.out.println("该系统不支持系统托盘");
return;
}
final Menu trayMenu = createTrayMenu(display, shell);
// 创建系统托盘的工作项
final TrayItem item = new TrayItem(tray, SWT.NONE);
item.setToolTipText("这是一个TrayItem");
//设置显示系统托盘项的图标，显示在桌面的右下角
item.setImage(SWTResourceManager.getImage(TraySample.class,
FilePath.IMAGE_PATH +ImageFactory.SAMPLES));
//集中处理事件
Listener listner = new Listener(){
public void handleEvent(Event event) {
if ( event.type==SWT.Show )//当显示系统托盘时
System.out.println("显示");
else if ( event.type==SWT.Hide )//当隐藏系统托盘时
System.out.println("隐藏");
else if ( event.type==SWT.Selection )//当单击系统托盘时
System.out.println("选中");
else if ( event.type==SWT.DefaultSelection )//当双击系统托盘时
System.out.println("默认选中");
else if ( event.type==SWT.MenuDetect )//当右击系统托盘时
trayMenu.setVisible(true);//设置菜单为显示状态
}
};
//为该系统托盘项注册事件
item.addListener( SWT.Show, listner );
item.addListener( SWT.Hide , listner );
item.addListener( SWT.Selection , listner );
item.addListener( SWT.DefaultSelection , listner );
item.addListener( SWT.MenuDetect , listner );
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
ImageFactory.dispose();
display.dispose();
}
private static Menu createTrayMenu(Display display, final Shell shell) {
// 定义一个弹出式菜单，使用常量SWT.POP_UP
final Menu trayMenu = new Menu(shell, SWT.POP_UP);
// 定义菜单中的菜单项
MenuItem welcomeItem = new MenuItem(trayMenu, SWT.PUSH);
welcomeItem.setText("欢迎");
welcomeItem.setImage(SWTResourceManager.getImage(TraySample.class,
FilePath.IMAGE_PATH +ImageFactory.ECLIPSE));
new MenuItem(trayMenu, SWT.SEPARATOR);
MenuItem updatetem = new MenuItem(trayMenu, SWT.PUSH);
updatetem.setText("在线更新");
updatetem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent arg0) {
System.exit(-1);
ImageFactory.dispose();
}
});
MenuItem aboutItem = new MenuItem(trayMenu, SWT.PUSH);
aboutItem.setText("关于我们");
aboutItem.setImage(SWTResourceManager.getImage(TraySample.class,
FilePath.IMAGE_PATH +ImageFactory.SAMPLES));
trayMenu.setDefaultItem(welcomeItem);
return trayMenu;
}
}