Java Swing实现类似QQ的停靠在桌面边缘时自动隐藏详解编程语言

public class HideFrame extends JFrame implements ActionListener{ private Rectangle rect; private int frameLeft;// 窗体离屏幕左边的距离 private int frameRight;// 窗体离屏幕右边的距离； private int frameTop;// 窗体离屏幕顶部的距离 private int frameWidth; // 窗体的宽 private int frameHeight; // 窗体的高 private int screenXX;// 屏幕的宽度； private Point point; // 鼠标在窗体的位置 private Timer timer = new Timer(10, this); private int xx, yy; private boolean isDraging = false; public HideFrame(){ timer.start(); setTitle("窗体在屏幕边缘隐藏演示"); setSize(400, 300); setUndecorated(true); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setAlwaysOnTop(true); addMouseListener(new MouseAdapter() { public void mousePressed(MouseEvent e) { isDraging = true; xx = e.getX(); yy = e.getY(); public void mouseReleased(MouseEvent e) { isDraging = false; }); addMouseMotionListener(new MouseMotionAdapter() { public void mouseDragged(MouseEvent e) { if (isDraging) { int left = getLocation().x; int top = getLocation().y; setLocation(left + e.getX() - xx, top + e.getY() - yy); repaint(); }); setVisible(true); @Override public void actionPerformed(ActionEvent arg0) { frameLeft = getLocationOnScreen().x; frameTop = getLocationOnScreen().y; frameWidth = getWidth(); frameHeight = getHeight(); screenXX = java.awt.Toolkit.getDefaultToolkit().getScreenSize().width; frameRight =screenXX- frameLeft - frameWidth; // 获取窗体的轮廓 rect = new Rectangle(0, 0, frameWidth, frameHeight); // 获取鼠标在窗体的位置 point =getMousePosition(); if (frameLeft 0 isPtInRect(rect, point)) { setLocation(0, frameTop); // 隐藏在左边，鼠标指到后显示窗体； } else if (frameLeft -5 frameLeft 5 !(isPtInRect(rect, point))) { setLocation(frameLeft - frameWidth + 1, frameTop); // 窗体移到左边边缘隐藏到左边； } else if ((frameTop 0 frameLeft 0) isPtInRect(rect, point)) {// 窗体在左上角； setLocation(0, 0);// 窗口隐藏了，鼠标指到他，就显示出来； } else if ((frameTop -5 frameTop 5) (frameLeft -5 frameLeft 5) !(isPtInRect(rect, point))) { // 当窗体的上边框与屏幕的顶端的距离小于5时 ， // 并且鼠标不再窗体上将窗体隐藏到屏幕的顶端 setLocation(frameLeft - frameWidth + 1, 1); } else if ((frameTop 0) isPtInRect(rect, point)) { setLocation(frameLeft, 0);// 窗口隐藏了，鼠标指到他，就显示出来； } else if (frameTop -5 frameTop 5 !(isPtInRect(rect, point))) { // 当窗体的上边框与屏幕的顶端的距离小于5时 ， // 并且鼠标不再窗体上将窗体隐藏到屏幕的顶端 setLocation(frameLeft, 1 - frameHeight); } else if (frameRight 0 isPtInRect(rect, point)) { setLocation(screenXX - frameWidth + 1, frameTop);// 隐藏在右边，鼠标指到后显示； } else if (frameRight -5 frameRight 5 !(isPtInRect(rect, point))) { setLocation(screenXX - 1, frameTop); // 窗体移到屏幕右边边缘隐藏到右边； } else if (frameRight 0 frameTop 0 isPtInRect(rect, point)) {// 窗体在右上角； setLocation(screenXX - frameWidth + 1, 0);// 隐藏在右边，鼠标指到后显示； } else if ((frameRight -5 frameRight 5) (frameTop -5 frameTop 5) !(isPtInRect(rect, point))) { setLocation(screenXX - 1, 1); // 窗体移到屏幕右边边缘隐藏到右边； /** * 检测是否在矩形框内 * @param rect * @param point * @return public boolean isPtInRect(Rectangle rect, Point point) { if (rect != null point != null) { int x0 = rect.x; int y0 = rect.y; int x1 = rect.width; int y1 = rect.height; int x = point.x; int y = point.y; return x = x0 x x1 y = y0 y return false; public static void main(String[] args){ HideFrame frame = new HideFrame(); }

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