Question

当我在一段时间内进行多次截屏时，我遇到了一些问题：例如，如果我做两次截图，有时第二次截图与第一次截图相同。

这是我的代码：

public static void main(String[] args) {
    BufferedImage screenshot = screen();
    save_screen(screenshot,"title1");
    //some instructions
    screenshot=screen();
    save_screen(screenshot,"title2");
}

private static BufferedImage screen(){
    BufferedImage image=null;
    try {
        image = new Robot().createScreenCapture(new Rectangle(Toolkit.getDefaultToolkit().getScreenSize()));
        ImageIO.write(image, "png", new File("/screenshot.png"));
    } catch (HeadlessException e2) {
        // TODO Auto-generated catch block
        e2.printStackTrace();
    } catch (AWTException e2) {
        // TODO Auto-generated catch block
        e2.printStackTrace();
    } catch (IOException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
    }
    return image;
}

private static void save_screen(BufferedImage image,String title){
    File output = new File("C:\\Users\\MyPC\\Desktop\\" + title + ".png");
    File dir = output.getParentFile();
    if (dir.exists() || dir.mkdirs()) {
    try {
        ImageIO.write(image, "PNG", output);
    } catch (IOException e) {
        e.printStackTrace();
    }    
    } else {
        System.out.println("Bad Path - " + dir);
    }       
}

我该怎么做才能解决这个问题？

提前谢谢！

Answer 1

只需添加一个时间间隔，下面的代码会在1秒后准确捕获图像

public static void main(String[] args) {
BufferedImage screenshot = screen();
save_screen(screenshot,"title1");
//some instructions
//Sleep for 1 seconds 
Thread.Sleep(1000);
screenshot=screen();
save_screen(screenshot,"title2"); }

多个屏幕截图捕获相同的图像

1 个答案: