swing使用动作侦听器隐藏和显示java桌面应用程序

Question

我有一个用netbeans编写的java桌面应用程序。 我所做的就是听到窗口关闭并最小化托盘。 我添加到我的应用程序。java是一种启动时侦听器方法，它侦听窗口关闭，然后隐藏myAppView

我在任务栏中创建了一个icontray，我想打开和以前相同的框架。 我将appView声明为全局变量，但可以执行show（myapp），因为它表示它是静态的。 你知道怎么让它工作吗

public class myApp extends SingleFrameApplication {
    private myAppView mainv;


    @Override protected void startup() {
        mainv=new myAppView(this);
        show(mainv);
        addExitListener(new ExitListener() {

           public boolean canExit( EventObject event ) {
              systray();
              hide(mainv);

              return false;
           }

        public void willExit( EventObject arg0 ) {
            throw new UnsupportedOperationException("Not supported yet.");
        }
    });
}

/**
 * This method is to initialize the specified window by injecting resources.
 * Windows shown in our application come fully initialized from the GUI
 * builder, so this additional configuration is not needed.
 */
@Override protected void configureWindow(java.awt.Window root) {

}

/**
 * A convenient static getter for the application instance.
 * @return the instance of find4me
 */
public static myApp getApplication() {
    return Application.getInstance(myApp.class);
}

/**
 * Main method launching the application.
 */
public static void main(String[] args) {
    launch(myApp.class, args);
}