利用java swing 实现如QQ提示消息的效果：
效果图：
java代码调用实例：
源代码：
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.Point;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionAdapter;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.swing.BorderFactory;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.SwingConstants;
import java.awt.Insets;
import java.awt.Toolkit;
import javax.swing.JDialog;
/* @author Administrator
此工具类用法：实例化出对象，调用 void show(“标题”,”内容”) 方法. InfoUtil tool = new InfoUtil();
tool.show(“标题”,”内容”) /
public class InfoUtil {
private Point oldP; // 上一次坐标,拖动窗口时用
private TipWindow tw = null; // 提示框
private ImageIcon img = null; // 图像组件
private JLabel imgLabel = null; // 背景图片标签
private JPanel headPan = null;
private JPanel feaPan = null;
private JPanel btnPan = null;
private JLabel title = null; // 栏目名称
private JLabel head = null; // 蓝色标题
private JLabel close = null; // 关闭按钮
private JTextArea feature = null; // 内容
private JScrollPane jfeaPan = null;
private JLabel releaseLabel = null; //发布时间
private JLabel sure = null;
private String titleT = null;
private String word = null;
private String time = null;
private SimpleDateFormat sdf =
new SimpleDateFormat(“yyyy-MM-dd HH:mm:ss”);
public void init() {
// 新建300x220的消息提示框
tw = new TipWindow(300, 220);
img = new ImageIcon(“background.gif”);
imgLabel = new JLabel(img);
// 设置各个面板的布局以及面板中控件的边界
headPan = new JPanel(new FlowLayout(FlowLayout.CENTER, 0, 0));
feaPan = new JPanel(new FlowLayout(FlowLayout.CENTER, 0, 0));
btnPan = new JPanel(new FlowLayout(FlowLayout.CENTER, 0, 0));
title = new JLabel(“欢迎使用本系统”);
head = new JLabel(titleT);
close = new JLabel(“ x”);
feature = new JTextArea(word);
jfeaPan = new JScrollPane(feature);
releaseLabel = new JLabel(“发布于 “ + time);
sure = new JLabel(“确定”);
sure.setHorizontalAlignment(SwingConstants.CENTER);
// 将各个面板设置为透明，否则看不到背景图片
((JPanel) tw.getContentPane()).setOpaque(false);
headPan.setOpaque(false);
feaPan.setOpaque(false);
btnPan.setOpaque(false);
// 设置JDialog的整个背景图片
tw.getLayeredPane().add(imgLabel, new Integer(Integer.MIN_VALUE));
imgLabel.setBounds(0, 0, img.getIconWidth(), img.getIconHeight());
headPan.setPreferredSize(new Dimension(300, 60));
// 设置提示框的边框,宽度和颜色
tw.getRootPane().setBorder(
BorderFactory.createMatteBorder(1, 1, 1, 1, Color.gray));
title.setPreferredSize(new Dimension(260, 26));
title.setVerticalTextPosition(JLabel.CENTER);
title.setHorizontalTextPosition(JLabel.CENTER);
title.setFont(new Font(“宋体”, Font.PLAIN, 12));
title.setForeground(Color.black);
close.setFont(new Font(“Arial”, Font.BOLD, 15));
close.setPreferredSize(new Dimension(20, 20));
close.setVerticalTextPosition(JLabel.CENTER);
close.setHorizontalTextPosition(JLabel.CENTER);
close.setCursor(new Cursor(12));
close.setToolTipText(“关闭”);
head.setPreferredSize(new Dimension(250, 35));
head.setVerticalTextPosition(JLabel.CENTER);
head.setHorizontalTextPosition(JLabel.CENTER);
head.setFont(new Font(“宋体”, Font.PLAIN, 12));
head.setForeground(Color.blue);
feature.setEditable(false);
feature.setForeground(Color.red);
feature.setFont(new Font(“宋体”, Font.PLAIN, 13));
feature.setBackground(new Color(184, 230, 172));
// 设置文本域自动换行
feature.setLineWrap(true);
jfeaPan.setPreferredSize(new Dimension(250, 80));
jfeaPan.setBorder(null);
jfeaPan.setBackground(Color.black);
releaseLabel.setForeground(Color.DARK_GRAY);
releaseLabel.setFont(new Font(“宋体”, Font.PLAIN, 12));
// 为了隐藏文本域，加个空的JLabel将他挤到下面去
JLabel jsp = new JLabel();
jsp.setPreferredSize(new Dimension(300, 25));
sure.setPreferredSize(new Dimension(110, 30));
// 设置标签鼠标手形
sure.setCursor(new Cursor(12));
headPan.add(title);
headPan.add(close);
headPan.add(head);
feaPan.add(jsp);
feaPan.add(jfeaPan);
feaPan.add(releaseLabel);
btnPan.add(sure);
tw.add(headPan, BorderLayout.NORTH);
tw.add(feaPan, BorderLayout.CENTER);
tw.add(btnPan, BorderLayout.SOUTH);
}
public void handle() {
// 为更新按钮增加相应的事件
sure.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent e) {
JOptionPane.showMessageDialog(tw, “谢谢，再见”);
tw.close();
}
public void mouseEntered(MouseEvent e) {
sure.setBorder(BorderFactory.createLineBorder(Color.gray));
}
public void mouseExited(MouseEvent e) {
sure.setBorder(null);
}
});
// 增加鼠标拖动事件
title.addMouseMotionListener(new MouseMotionAdapter() {
public void mouseDragged(MouseEvent e) {
// TODO Auto-generated method stub
Point newP = new Point(e.getXOnScreen(), e.getYOnScreen());
int x = tw.getX() + (newP.x - oldP.x);
int y = tw.getY() + (newP.y - oldP.y);
tw.setLocation(x, y);
oldP = newP;
}
});
// 鼠标按下时初始坐标,供拖动时计算用
title.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent e) {
oldP = new Point(e.getXOnScreen(), e.getYOnScreen());
}
});
// 右上角关闭按钮事件
close.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent e) {
tw.close();
}
public void mouseEntered(MouseEvent e) {
close.setBorder(BorderFactory.createLineBorder(Color.gray));
}
public void mouseExited(MouseEvent e) {
close.setBorder(null);
}
});
}
public void show(String titleT,String word){
this.titleT = titleT;
this.word = word;
time = sdf.format(new Date());
init();
handle();
tw.setAlwaysOnTop(true);
tw.setUndecorated(true);
tw.setResizable(false);
tw.setVisible(true);
tw.run();
}
}
class TipWindow extends JDialog {
private static final long serialVersionUID = 8541659783234673950L;
private static Dimension dim;
private int x, y;
private int width, height;
private static Insets screenInsets;
public TipWindow(int width, int height) {
this.width = width;
this.height = height;
dim = Toolkit.getDefaultToolkit().getScreenSize();
screenInsets = Toolkit.getDefaultToolkit().getScreenInsets(
this.getGraphicsConfiguration());
x = (int) (dim.getWidth() - width - 3);
y = (int) (dim.getHeight() - screenInsets.bottom - 3);
initComponents();
}
public void run() {
for (int i = 0; i <= height; i += 10) {
try {
this.setLocation(x, y - i);
Thread.sleep(5);
} catch (InterruptedException ex) {
}
}
// 此处代码用来实现让消息提示框5秒后自动消失
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
e.printStackTrace();
}
close();
}
private void initComponents() {
this.setSize(width, height);
this.setLocation(x, y);
this.setBackground(Color.black);
}
public void close() {
x = this.getX();
y = this.getY();
int ybottom = (int) dim.getHeight() - screenInsets.bottom;
for (int i = 0; i <= ybottom - y; i += 10) {
try {
setLocation(x, y + i);
Thread.sleep(5);
} catch (InterruptedException ex) {
}
}
dispose();
}
public static void main(String args[]){
InfoUtil tool = new InfoUtil();
tool.show(
“ QQ提示消息工具类 - Develop By qsuron”,
“1.博客:blog.csdn.net/qsuronn” +”2.博主:qsuronn” +”3.开发相关:Eclipse + Javan” +”4.数据库类型:无 5.1n” +”5.开发人员:小树n” +”6.联系方式:QQ 280970160”
);
}
}