通过每次打开图片位置不一样实现动态爱心降落。
程序效果如图所示：
代码 ：
import javax.imageio.ImageIO;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
public class ax {
private Jframe jframe;
private JPanel axJPanel;
private final int TABLE_WIDTH = 410;
private final int TABLE_HEIGHT = 390;
private int Image_x = 0;
private int Image_y = 0;
private int speed = 50;
private Timer timer;
private BufferedImage image;
private class MyCanvas extends JPanel {
@Override
public void paint(Graphics g) {
g.drawImage(image, Image_x, Image_y, null);
g.drawImage(image, 0,0, null);
}
}
MyCanvas myDraw=new MyCanvas();
public void init(){
try {
image= ImageIO.read(new File("C:\Users\ywz\IdeaProjects\JingJie\.idea\image\ax.jpg"));
} catch (IOException e) {
e.printStackTrace();
}
myDraw.repaint();
ActionListener actionListener=new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
myDraw.repaint();
Image_y+=speed;
if (Image_y>TABLE_HEIGHT){
Image_y=0;
Image_x+=speed;
}
}
};
timer=new Timer(100,actionListener);
timer.start();
myDraw.setPreferredSize(new Dimension(TABLE_WIDTH,TABLE_HEIGHT));
axJPanel=new JPanel();
jframe=new Jframe();
axJPanel.add(myDraw);
jframe.add(axJPanel);
jframe.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
jframe.setSize(TABLE_WIDTH,TABLE_HEIGHT);
jframe.setVisible(true);
}
public static void main(String[] args) {
new ax().init();
}
}
注意：init方法中的image后的new File括号后面是爱心图片的储存位置，记得修改！！！
以下是爱心图片
