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[java] 托盘(Tray), 标准与实现之间

2009-06-03 21:55:36| 分类： lang_java | 标签： |举报 |字号大中小订阅

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java 中如何实现托盘(Tray)，1.6之前是没有原生支持的。1.6之后，可以使用：
java.awt.SystemTray
java.awt.TrayIcon

http://java.sun.com/javase/6/docs/api/java/awt/SystemTray.html
http://www.java2s.com/Code/Java/JDK-6/CreateTrayIcon.htm

不过呢，目前 SystemTray 只支持 win32, GNOME, KDE，其他的 WindowsManager 自然是不支持的。
SystemTray.isSupported() 会告诉你目前是否支持 Tray。

--------------- java/awt/SystemTray.java -------------
public static boolean isSupported() {
    if (Toolkit.getDefaultToolkit() instanceof SunToolkit) {
        return ((SunToolkit)Toolkit.getDefaultToolkit()).isTraySupported();
    } else if (Toolkit.getDefaultToolkit() instanceof HeadlessToolkit) {
        return ((HeadlessToolkit)Toolkit.getDefaultToolkit()).isTraySupported();
    }
    return false;
}

--------------- sun/awt/X11/XToolkit.java (subclass of SunToolkit) -------------
public boolean isTraySupported() {
    int wm = XWM.getWMID();
    if (wm == XWM.METACITY_WM || wm == XWM.KDE2_WM)
    {
        return true;
    }
    return false;
}
其中 Metacity 就是 GNOME。

--------------------------------
我的 IceWM 还不能些 Tray 程序了，汗～

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