在网上找了好久都没有找到包含整个源代码的Swing动画，特别是淡入淡出效果，现在先上传个简单的动画供大家参考
package com.sbt.common.client.utils;import java.awt.Color;import java.awt.FlowLayout;import java.awt.Graphics;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.MouseEvent;import javax.swing.BorderFactory;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.Timer;/** * 演示如何使用Timer 这个类来完成Swing的动画效果。 * @author zcl */public class TestWindow extends JPanel { private final int panelWidth = 300, panelHeight = 200; private final int DELAY = 10, IMAGE_SIZE = 35; private Timer timer; private JButton topButton; private int x, y, moveX, moveY; /** * 面板构造函数，初始化面板。包括Timer 的场景。 */ public TestWindow() { timer = new Timer(DELAY, new ReboundListener()); this.setLayout(new FlowLayout(FlowLayout.LEFT)); topButton = new JButton("top"); // topButton.setPreferredSize(new Dimension(20, 20)); x = 0; y = 40; moveX = moveY = 3; setBackground(Color.WHITE); this.setBorder(BorderFactory.createLineBorder(Color.GREEN)); JButton button = new JButton("click"); button.addMouseListener(getClickListener()); this.add(button); } private AsynMouseEventListener clickListener; private AsynMouseEventListener getClickListener(){ if(clickListener == null){ clickListener = new AsynMouseEventListener() { @Override public boolean prepareAction(MouseEvent e){ if(e.getButton() == MouseEvent.BUTTON1){ timer.start(); }else{ timer.stop(); } return false; } }; } return clickListener; } /** * 绘出图像在面板中的位置。 * @param page */ @Override public void paintComponent(Graphics page) { super.paintComponent(page); topButton.paint(page); } //Swing 动画，不断的更新图像的位置，已达到动画的效果。 private class ReboundListener implements ActionListener { @Override public void actionPerformed(ActionEvent e) { x += moveX; y += moveY; topButton.setBounds(0, 0, 100, y); if (x <= 0 || x >= panelWidth - IMAGE_SIZE) { moveX = moveX * (-1); } if (y <= 0 || y >= panelHeight - IMAGE_SIZE) { moveY = moveY * (-1);// moveY =0; } repaint(); } } public static void main(String[] args) { JFrame frame = new JFrame("JUST SOSO"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.add(new TestWindow()); frame.setSize(300, 300); frame.setLocation(400, 400); frame.setVisible(true); }}
