public static boolean sameAs(BufferedImage myImage,BufferedImage otherImage, double percent) 	{ 		//BufferedImage otherImage = other.getBufferedImage(); 	     //BufferedImage myImage = getBufferedImage(); 	      	 	     if (otherImage.getWidth() != myImage.getWidth()) { 	       return false; 	     } 	     if (otherImage.getHeight() != myImage.getHeight()) { 	       return false; 	     } 	      	     int[] otherPixel = new int[1]; 	     int[] myPixel = new int[1]; 	      	     int width = myImage.getWidth(); 	     int height = myImage.getHeight(); 	      	     int numDiffPixels = 0; 	      	     for (int y = 0; y < height; y++) { 	       for (int x = 0; x < width; x++) { 	         if (myImage.getRGB(x, y) != otherImage.getRGB(x, y)) { 	           numDiffPixels++; 	         } 	       } 	     } 	     double numberPixels = height * width; 	     double diffPercent = numDiffPixels / numberPixels; 	     return percent <= 1.0D - diffPercent; 	   } 	 	   public static BufferedImage getSubImage(BufferedImage image,int x, int y, int w, int h) 	   { 	     return image.getSubimage(x, y, w, h); 	   } 	     		public static BufferedImage getImageFromFile(File f) { 		 			BufferedImage img = null; 			 			try { 				img = ImageIO.read(f); 				 			} catch (IOException e) { 				//if failed, then copy it to local path for later check:TBD 				//FileUtils.copyFile(f, new File(p1)); 				e.printStackTrace(); 				System.exit(1); 			} 			return img; 		}

2. 客户端调用代码举例

package sample.demo.AppiumDemo;  import static org.junit.Assert.*;  import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import java.net.URL;  import javax.imageio.ImageIO;  import libs.Util; import io.appium.java_client.android.AndroidDriver;  import org.apache.commons.io.FileUtils; import org.junit.After; import org.junit.Before; import org.junit.Test; import org.openqa.selenium.By; import org.openqa.selenium.OutputType; import org.openqa.selenium.WebElement; import org.openqa.selenium.remote.DesiredCapabilities;  public class CompareScreenShots {  	private AndroidDriver driver; 	 	@Before 	public void setUp() throws Exception { 		DesiredCapabilities cap = new DesiredCapabilities(); 		cap.setCapability("deviceName", "Android"); 		cap.setCapability("appPackage", "com.example.android.notepad"); 		cap.setCapability("appActivity", ".NotesList"); 		 		driver = new AndroidDriver(new URL("http://127.0.0.1:4723/wd/hub"),cap); 	}  	@After 	public void tearDown() throws Exception { 		driver.quit(); 	}  	@Test 	public void compareScreenAndSubScreen() throws InterruptedException, IOException{ 		Thread.sleep(2000); 		 		WebElement el = driver.findElement(By.className("android.widget.ListView")).findElement(By.name("Note1")); 		el.click(); 		Thread.sleep(1000); 		String p1 = "C:/1"; 		String p2 = "C:/2";  		File f2 = new File(p2); 		 		File f1 = driver.getScreenshotAs(OutputType.FILE); 		FileUtils.copyFile(f1, new File(p1)); 		 		BufferedImage img1 = Util.getImageFromFile(f1); 		 		f2 = driver.getScreenshotAs(OutputType.FILE); 		FileUtils.copyFile(f2, new File(p2)); 		BufferedImage img2 = Util.getImageFromFile(f2);  		 		Boolean same = Util.sameAs(img1, img2, 0.9); 		assertTrue(same); 		 		BufferedImage subImg1 = Util.getSubImage(img1, 6, 39, 474, 38); 		BufferedImage subImg2 = Util.getSubImage(img1, 6, 39, 474, 38); 		same = Util.sameAs(subImg1, subImg2, 1); 		 		File f3 = new File("c:/sub-1.png"); 		ImageIO.write(subImg1, "PNG", f3); 		 		File f4 = new File("c:/sub-2.png"); 		ImageIO.write(subImg1, "PNG", f4); 		 	}  	 }