鸿蒙开发实战-手写一个Openharmony投屏工具

实战手写一个Openharmony投屏工具，实现代码分享如下：

java
import javax.imageio.ImageIO;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

public class ImageFrame extends JFrame {

    private BufferedImage originalImage;
    private final String imagePath = System.getProperty("user.dir") + File.separator + "scr.jpeg"; // 图片文件的路径
    private final double aspectRatio = 720.0 / 1280.0; // 定义比例
    private ImagePanel imagePanel;
    private long pressTime; // 用于记录鼠标按下的时间
    private int initWidth = 517;  //初始窗口宽
    private int initHeight = 908;   //初始窗口高

    public ImageFrame() {
        setTitle("OHScrcpy(by zhonghongfa)");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // setLocationRelativeTo(null);
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        int screenWidth = screenSize.width;
        int screenHeight = screenSize.height;
        // 计算窗体在屏幕右侧的新位置
        int x = screenWidth - initWidth - 50;
        int y = 50; // 如果希望窗体垂直居中
        // 设置窗体的新位置
        setLocation(x, y);

        loadImage();
        imagePanel = new ImagePanel();
        add(imagePanel);
        setIconImage();

        addComponentListener(new ComponentAdapter() {
            public void componentResized(ComponentEvent e) {
                maintainAspectRatio();
            }
        });

        imagePanel.addMouseListener(new MouseAdapter() {
            @Override
            public void mousePressed(MouseEvent e) {
                pressTime = System.currentTimeMillis(); // 记录鼠标按下的时间
            }

            @Override
            public void mouseReleased(MouseEvent e) {
                long releaseTime = System.currentTimeMillis(); // 记录鼠标释放的时间
                double scaleX = (double) originalImage.getWidth() / imagePanel.getWidth();
                double scaleY = (double) originalImage.getHeight() / imagePanel.getHeight();
                int realX = (int) (e.getX() * scaleX);
                int realY = (int) (e.getY() * scaleY);
                if (releaseTime - pressTime > 500) { // 如果按下时间超过500毫秒，则认为是长按
                    System.out.println("Real Long pressed coordinates: (" + realX + ", " + realY + ")");
                    executeCommand(String.format("hdc shell uitest uiInput longClick %d %d", realX, realY));
                }else{
                    System.out.println("Real clicked coordinates: (" + realX + ", " + realY + ")");
                    // 构建并执行命令
                    executeCommand(String.format("hdc shell uitest uiInput click %d %d", realX, realY));
                }
            }
        });

        setSize(initWidth, initHeight); // 设置初始窗口大小
        new Timer(100, e -> updateImageAndReload()).start();
    }

    private void setIconImage() {
        try {
            BufferedImage iconImage = ImageIO.read(getClass().getResource("/OHScrcpy.png")); // 注意路径前的斜杠
            setIconImage(iconImage);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private void loadImage() {
        try {
            File imageFile = new File(imagePath);
            if (imageFile.exists()) {
                originalImage = ImageIO.read(imageFile);
            }
        } catch (IOException ex) {
            ex.printStackTrace();
        }
    }

    private void executeCommand(String command) {
        try {
            System.out.println("Executing command: " + command);
            Process process = Runtime.getRuntime().exec("cmd.exe /c " + command);
            process.waitFor();
        } catch (IOException | InterruptedException e) {
            e.printStackTrace();
        }
    }

    private void updateImage() {
        try {
            // 执行外部命令更新图片
            String[] cmd = {
                    "cmd.exe",
                    "/c",
                    "hdc shell rm -rf /data/local/tmp/scr.jpeg & hdc shell snapshot_display -f /data/local/tmp/scr.jpeg & hdc file recv  /data/local/tmp/scr.jpeg"
            };
            Process p = Runtime.getRuntime().exec(cmd);
            p.waitFor(); // 等待命令执行完成

        } catch (IOException | InterruptedException ex) {
            ex.printStackTrace();
        }
    }

    private void updateImageAndReload() {
        updateImage();
        loadImage();
        imagePanel.repaint();
    }

    private void maintainAspectRatio() {
        Rectangle bounds = this.getBounds();
        int width = bounds.width;
        int height = (int) (width / aspectRatio);
        if (height != bounds.height) {
            this.setSize(width, height);
        }
    }

    // JPanel 的子类用于绘制图像
    private class ImagePanel extends JPanel {
        @Override
        protected void paintComponent(Graphics g) {
            super.paintComponent(g);
            if (originalImage != null) {
                g.drawImage(originalImage, 0, 0, getWidth(), getHeight(), this); // 动态调整图片大小
            }
        }
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(() -> new ImageFrame().setVisible(true));
    }
}


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150

运行效果如下：