如何在Java中从系统托盘中弹出JFrame [英] How to spring JFrame from System Tray in Java

问题描述

我可以用Java创建一个系统托盘应用程序，但我在定位方面遇到了麻烦。该程序只需要处理一些输入/输出，所以我希望它易于访问。

I'm able to create a system tray application in Java, but I'm having trouble with positioning. The program will simply need to handle a few inputs/outputs, so I would like it to be easily accessible.

我的问题是，当我点击应用程序的系统托盘图标时，如何在系统托盘上方优雅地设置它？无论显示设置（分辨率，多显示器等）和任务栏位置如何，都要求它执行此操作。有没有办法告诉它在托盘附近打开，而不是完全定位？

My question is, when I click the system tray icon for my application how can I set it's position elegantly above the system tray? The requirements being that it does this regardless of display settings (resolution, multi monitors, etc) and Taskbar location. Is there a way to tell it to open near the tray, rather than positioning it at all?

我希望它能完全按照网络设置按钮的作用视窗。类似于以下内容：

I want it to do exactly what the "Network" settings button does in Windows. Similar to the following:

这在Java中是否可行？

Is this possible in Java?

推荐答案

<正如Vulcan指出的那样，是的，这是可能的。

As Vulcan has pointed out, yes it's possible.

此外，我们可以考虑将弹出窗口放在哪里（与任务所在的位置相关）图标是）

Also, it's very possible to take into consideration where to place the popup (with relevance to the location where the task icon is)

public class TestTrayIcon {

    protected static final PopupFrame POPUP_FRAME = new PopupFrame();

    public static void main(String[] args) {

        EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {

                try {
                    TrayIcon trayIcon = new TrayIcon(ImageIO.read(new File("D:/DevWork/common/icons/iconex_v_bundle_png/iconexperience/v_collections_png/basic_foundation/16x16/plain/about.png")));
                    trayIcon.addMouseListener(new MouseAdapter() {
                        @Override
                        public void mouseClicked(MouseEvent e) {

                            Point pos = e.getLocationOnScreen();
                            Rectangle screen = getScreenBoundsAt(pos);

                            if (pos.x + POPUP_FRAME.getWidth() > screen.x + screen.width) {
                                pos.x = screen.x + screen.width - POPUP_FRAME.getWidth();
                            }
                            if (pos.x < screen.x) {
                                pos.x = screen.x;
                            }

                            if (pos.y + POPUP_FRAME.getHeight() > screen.y + screen.height) {
                                pos.y = screen.y + screen.height - POPUP_FRAME.getHeight();
                            }
                            if (pos.y < screen.y) {
                                pos.y = screen.y;
                            }

                            POPUP_FRAME.setLocation(pos);
                            POPUP_FRAME.setVisible(true);

                        }
                    });
                    SystemTray.getSystemTray().add(trayIcon);
                } catch (Exception ex) {
                    ex.printStackTrace();
                }
            }
        });
    }

    public static class PopupFrame extends JFrame {

        public PopupFrame() throws HeadlessException {
            setLayout(new BorderLayout());
            add(new JLabel("Hello world"));
            pack();
        }
    }

    public static Rectangle getScreenBoundsAt(Point pos) {
        GraphicsDevice gd = getGraphicsDeviceAt(pos);
        Rectangle bounds = null;

        if (gd != null) {
            bounds = gd.getDefaultConfiguration().getBounds();
            Insets insets = Toolkit.getDefaultToolkit().getScreenInsets(gd.getDefaultConfiguration());

            bounds.x += insets.left;
            bounds.y += insets.top;
            bounds.width -= (insets.left + insets.right);
            bounds.height -= (insets.top + insets.bottom);
        }
        return bounds;
    }

    public static GraphicsDevice getGraphicsDeviceAt(Point pos) {
        GraphicsDevice device = null;

        GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
        GraphicsDevice lstGDs[] = ge.getScreenDevices();

        ArrayList<GraphicsDevice> lstDevices = new ArrayList<GraphicsDevice>(lstGDs.length);

        for (GraphicsDevice gd : lstGDs) {
            GraphicsConfiguration gc = gd.getDefaultConfiguration();
            Rectangle screenBounds = gc.getBounds();

            if (screenBounds.contains(pos)) {
                lstDevices.add(gd);
            }
        }

        if (lstDevices.size() == 1) {
            device = lstDevices.get(0);
        }
        return device;
    }
}

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