Java编程实现一个能循环地自左向右移动的动画程序 。效果图
参考代码
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class MoveTextFrame extends JFrame {
JLabel jl;//文字标签
int speed=2;//移动速度
public MoveTextFrame() {
jl = new JLabel("文字动画");
jl.setForeground(Color.RED);
add(jl);
setSize(380, 100);//窗口大小
setLocationRelativeTo(null);//窗口居中
setResizable(false);
setDefaultCloseOperation(EXIT_ON_CLOSE);
setVisible(true);
//设置定时器, 每隔25毫秒,改变一次文字标签的位置
Timer t = new Timer(25, new ActionListener() {
public void actionPerformed(ActionEvent e) {
int x = jl.getX()+speed;//计算移动后的位置
if(x=390){//如果超过就指定像素,就重新从左边开水移动
x=-30;
}
jl.setLocation(x, jl.getY());//更新位置
//repaint();
}
});
t.start();
}
public static void main(String[] args) {
new MoveTextFrame();
}
}
求java做动画代码import java.awt.Canvas;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.RenderingHints;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
public class TestImage extends Frame
{
private static final long serialVersionUID = 1L;
private static boolean PRESSED = false;
private static int pointX = 0;
private static int pointy = 200;
private static int RIGHT_GO = 0;
private static int LEFT_GO = 0;
private static int DIR = 0;
private static int ANGLE = 0;
private static int W = 50;
private static int H = 60;
private _Canvas canvas = null;
public TestImage ()
{
add (canvas = new _Canvas ());
setIgnoreRepaint (true);
requestFocus ();
}
public class _Canvas extends Canvas implements Runnable
{
private static final long serialVersionUID = 1L;
private BufferedImage bi = null;
private Image bufferedImage = null;
private Thread thread = null;
private long sleepTime = 10;
public _Canvas ()
{
try
{
bi = ImageIO.read (new File ("go.png"));
}
catch (IOException e)
{}
setBackground (Color.BLACK);
requestFocus ();
addKeyListener (new KeyListener ()
【java代码动画 java 动画库】{
@Override
public void keyTyped ( KeyEvent e )
{}
@Override
public void keyReleased ( KeyEvent e )
{
RIGHT_GO = 0;
PRESSED = false;
}
@Override
public void keyPressed ( KeyEvent e )
{
// 38 40 37 39上下左右
DIR = e.getKeyCode ();
PRESSED = true;
}
});
}
@Override
public void paint ( Graphics g )
{
Graphics2D g2d = (Graphics2D) g;
g2d.setRenderingHint (RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g2d.drawImage (rotateImage (bi.getSubimage (RIGHT_GO, LEFT_GO, W, H), ANGLE, true), pointX, pointy, W, H,
this);
g2d.dispose ();
}
@Override
public void update ( Graphics g )
{
if (null == bufferedImage)
{
bufferedImage = createImage (getWidth (), getHeight ());
}
Graphics bufferedG = bufferedImage.getGraphics ();
bufferedG.clearRect (0, 0, getWidth (), getHeight ());
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