Java有关浮动面板(无标题可拖动窗口)

package javaapplication1;import javax.swing.*;import java.awt.*;import java.awt.event.*;public class TestFrameDemo {static Point origin = new Point(); //全局的位置变量，用于表示鼠标在窗口上的位置static JFrame myFrame = new JFrame();public static void main(String[] args) {myFrame.setUndecorated(true);myFrame.setSize(600, 400);myFrame.setVisible(true);myFrame.addMouseListener(new MouseAdapter() {public void mousePressed(MouseEvent e) { //按下（mousePressed 不是点击，而是鼠标被按下没有抬起）origin.x = e.getX(); //当鼠标按下的时候获得窗口当前的位置origin.y = e.getY();}});myFrame.addMouseMotionListener(new MouseMotionAdapter() {public void mouseDragged(MouseEvent e) { //拖动（mouseDragged 指的不是鼠标在窗口中移动，而是用鼠标拖动）Point p = myFrame.getLocation(); //当鼠标拖动时获取窗口当前位置//设置窗口的位置//窗口当前的位置+ 鼠标当前在窗口的位置- 鼠标按下的时候在窗口的位置myFrame.setLocation(p.x + e.getX() - origin.x, p.y + e.getY() - origin.y);}});}}此代码我在Myeclipse中执行，请初学者注意包名和类名；这个执行效果为：图中灰色的部分为浮动窗口部分，可随意拖动，但是要在任务栏右击才能关闭窗口；2、用NetBeans写的Java Swing模仿Vista磨砂玻璃效果透明窗体第3版上面是原文作者的标题，我在Myeclipse里面试过了，也能正常运行，无需修改代码，但是可能有些用户需要修改Myeclipse默认的jre，这个最后说，先看一下代码：package javaapplication1;import java.awt.Robot;import java.awt.*;import java.awt.BorderLayout;import java.awt.Dimension;import java.awt.Graphics;import java.awt.Image;import java.awt.Point;import java.awt.Rectangle;import java.awt.Robot;import java.awt.Toolkit;import ponentEvent;import ponentListener;import java.awt.event.WindowEvent;import java.awt.event.WindowFocusListener;import javax.swing.JButton;import javax.swing.JComponent;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.UIManager;import javax.swing.*;import java.awt.image.*;import java.awt.color.*; public class NewJFrame extends javax.swing.JFrame { boolean movieTf=false;Point mainP=new Point(); public NewJFrame() {//構造方法this.setUndecorated(true);//去掉JFrame的标题栏Image ico=Toolkit.getDefaultToolkit().getImage("g:/h2.jpg");this.setIconImage(ico);try {UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel"); //UI设置//UIManager.setLookAndFeel(javax.swing.UIManager.getSystemLookAn dFeelClassName());//windows樣式}catch (Exception ex) {javax.swing.JOptionPane.showMessageDialog(this,"發生UI加載錯誤，您可能無法看到程式預想的UI效果，錯誤信息如下：\n"+ex.toString()); initComponents();this.setLocation(100,100); // <editor-fold defaultstate="collapsed" desc=" 生成的代码">private void initComponents() {jlb = new javax.swing.JLabel();setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOS E);setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR));addWindowFocusListener(new java.awt.event.WindowFocusListener() { public void windowGainedFocus(java.awt.event.WindowEvent evt) {formWindowGainedFocus(evt); public void windowLostFocus(java.awt.event.WindowEvent evt) {formWindowLostFocus(evt); });addComponentListener(new ponentAdapter() { public void componentMoved(ponentEvent evt) {formComponentMoved(evt); public void componentResized(ponentEvent evt) {formComponentResized(evt); });jlb.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(128, 128, 128)));jlb.addMouseListener(new java.awt.event.MouseAdapter() {public void mouseClicked(java.awt.event.MouseEvent evt) {jlbMouseClicked(evt); public void mousePressed(java.awt.event.MouseEvent evt) {jlbMousePressed(evt); public void mouseReleased(java.awt.event.MouseEvent evt) {jlbMouseReleased(evt); });jlb.addMouseMotionListener(new java.awt.event.MouseMotionAdapter() { public void mouseDragged(java.awt.event.MouseEvent evt) {jlbMouseDragged(evt); public void mouseMoved(java.awt.event.MouseEvent evt) {jlbMouseMoved(evt); });javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());getContentPane().setLayout(layout);layout.setHorizontalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADIN G).addComponent(jlb, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 289, Short.MAX_VALUE) layout.setVerticalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADIN G).addComponent(jlb, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 762,Short.MAX_VALUE) pack();}// </editor-fold>private void jlbMousePressed(java.awt.event.MouseEvent evt) {// TODO 将在此处添加您的处理代码：mainP.x = evt.getX();//当鼠标按下的时候获得窗口当前的位置mainP.y = evt.getY();}private void jlbMouseDragged(java.awt.event.MouseEvent evt) {// TODO 将在此处添加您的处理代码：//鼠标拖动this.jlb.setIcon(null); //拖動時候將圖片去除Point p = this.getLocation();//当鼠标拖动时获取窗口当前位置this.setLocation(p.x + evt.getX() - mainP.x, p.y + evt.getY()- mainP.y);}private void jlbMouseMoved(java.awt.event.MouseEvent evt) {// TODO 将在此处添加您的处理代码：//鼠標移動}private void jlbMouseReleased(java.awt.event.MouseEvent evt) {// TODO 将在此处添加您的处理代码：//鼠標放開this.selectBgimg();}private void jlbMouseClicked(java.awt.event.MouseEvent evt) {// TODO 将在此处添加您的处理代码：//鼠標點擊//this.selectBgimg();}private void formWindowLostFocus(java.awt.event.WindowEvent evt) {// TODO 将在此处添加您的处理代码：//失去焦點}private void formWindowGainedFocus(java.awt.event.WindowEvent evt) {// TODO 将在此处添加您的处理代码：//得到焦點this.selectBgimg(); }private void formComponentResized(ponentEvent evt) {// TODO 将在此处添加您的处理代码：//儅窗口改變大小this.selectBgimg();}private void formComponentMoved(ponentEvent evt) {// TODO 将在此处添加您的处理代码：//儅窗口移動//if(this.tf=false){// this.selectBgimg(); }private void selectBgimg(){//截屏代码//this.tf=true;try {Point p=this.getLocation();//移動方式,用pthis.setLocation(-2000,-2000);//移動方式//this.setVisible(false);//隱藏方式，用thisRobot rbt = new Robot();Toolkit tk = Toolkit.getDefaultToolkit();Dimension dim = tk.getScreenSize(); //截圖BufferedImage background = rbt.createScreenCapture(new Rectangle((int)p.getX()+1,(int)p.getY()+1, this.getWidth()-2,this.getHeight()-2));background = rbt.createScreenCapture(new Rectangle((int)p.getX()+1,(int)p.getY()+1, this.getWidth()-2,this.getHeight()-2));background = rbt.createScreenCapture(new Rectangle((int)p.getX()+1,(int)p.getY()+1, this.getWidth()-2,this.getHeight()-2));background = rbt.createScreenCapture(new Rectangle((int)p.getX()+1,(int)p.getY()+1, this.getWidth()-2,this.getHeight()-2)); float[] data={//0.0625f,0.125f,0.0625f,//0.125f,0.125f,0.125f,//0.0625f,0.125f,0.0625f, 0.0625f,0.125f,0.0625f,0.125f,0.125f,0.125f,0.0625f,0.125f,0.0625f,//0.170f,0.06f,0.170f,//0.06f,0.06f,0.06f,//0.170f,0.06f,0.170f, Kernel kernel= new Kernel(3,3,data);ConvolveOp co= new ConvolveOp(kernel,ConvolveOp.EDGE_NO_OP,null); BufferedImage background2=null;background2=co.filter(background,background2);ImageIcon bg=new ImageIcon(background2);jlb.setIcon(bg);//this.setVisible(true);//隱藏方式this.setLocation(p);//移動方式} catch (Exception ex) {javax.swing.JOptionPane.showMessageDialog(this,"透明效果發生錯誤，程序無法啓動，錯誤信息如下：\n"+ex.toString());}//this.tf=false;}public static void main(String args[]) {java.awt.EventQueue.invokeLater(new Runnable() {public void run() {new NewJFrame().setVisible(true);}});}// 变量声明- 不进行修改private javax.swing.JLabel jlb;// 变量声明结束}在此附上这个的运行效果：。