1.在一个文件夹放好图片

2.读取文件夹的图片路径，放入数组

3.调用命令将图片逐个设置为壁纸

使用 Java 在 Ubuntu Linux 系统中实现自动切换壁纸的示例程序。这个程序使用了gnome-desktop-item-edit命令来设置壁纸，并通过定时任务来定期切换壁纸

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Timer;
import java.util.TimerTask;public class WallpaperChangerGUI extends JFrame {private Timer timer;private String[] imagePaths;private int currentImageIndex;private Point initialClick;public WallpaperChangerGUI() {setTitle("Wallpaper Changer");// 去掉标题栏setUndecorated(true);// 设置窗口半透明setOpacity(0.3f);setSize(300, 150);setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);setLocationRelativeTo(null);setLayout(new FlowLayout());JButton startButton = new JButton("Start");JButton stopButton = new JButton("Stop");startButton.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {startChangingWallpaper();}});stopButton.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {stopChangingWallpaper();}});add(startButton);add(stopButton);JButton exitButton = new JButton("Exit");exitButton.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {System.exit(0);}});add(exitButton);// 添加鼠标拖动功能addMouseListener(new MouseAdapter() {@Overridepublic void mousePressed(MouseEvent e) {initialClick = e.getPoint();//System.out.println("press");}});addMouseMotionListener(new MouseAdapter() {@Overridepublic void mouseDragged(MouseEvent e) {if (initialClick!= null) {Point currentPos = e.getLocationOnScreen();setLocation(currentPos.x - initialClick.x, currentPos.y - initialClick.y);}}});// 假设你的图片路径数组imagePaths = new String[]{"/home/xxx/图片/壁纸/No.2358/0009.jpg","/home/xxx/图片/壁纸/No.2358/0010.jpg","/home/xxx/图片/壁纸/No.2358/0022.jpg"};currentImageIndex = 0;}public void startChangingWallpaper() {if (timer == null) {timer = new Timer();timer.scheduleAtFixedRate(new TimerTask() {@Overridepublic void run() {setWallpaper(imagePaths[currentImageIndex]);currentImageIndex = (currentImageIndex + 1) % imagePaths.length;}}, 0, 5*1000); // 每一分钟切换一次壁纸，可以根据需要调整时间间隔}}public void stopChangingWallpaper() {if (timer!= null) {timer.cancel();timer = null;}}public static void setWallpaper(String imagePath) {try {// 使用 gnome-desktop-item-edit 命令设置壁纸Process process = Runtime.getRuntime().exec(new String[]{"gsettings", "set", "org.gnome.desktop.background", "picture-uri", "file://" + imagePath});process.waitFor();if (process.exitValue() == 0) {System.out.println("Wallpaper set successfully to " + imagePath);} else {System.out.println("Failed to set wallpaper.");}} catch (IOException | InterruptedException e) {e.printStackTrace();}}public static void main(String[] args) {SwingUtilities.invokeLater(() -> {WallpaperChangerGUI gui = new WallpaperChangerGUI();gui.setVisible(true);});}
}