完成对象识别，终代码如下：
package com.dbyl.core;
import org.openqa.selenium.By;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.remote.CapabilityType;
import org.openqa.selenium.remote.DesiredCapabilities;
import org.testng.Assert;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import io.appium.java_client.android.AndroidDriver;
import java.io.File;
import java.net.URL;
import java.util.List;
import java.util.concurrent.TimeUnit;
public class zhiHu {
private  AndroidDriver  driver;
@BeforeMethod(alwaysRun=true)
public void setUp() throws Exception {
// set up appium
File classpathRoot = new File(System.getProperty("user.dir"));
File appDir = new File(classpathRoot， "apps");
File app = new File(appDir， "zhihu.apk");
DesiredCapabilities capabilities = new DesiredCapabilities();
capabilities.setCapability(CapabilityType.BROWSER_NAME， "");
capabilities.setCapability("platformName"， "Android");
capabilities.setCapability("deviceName"，"Android Emulator");
capabilities.setCapability("platformVersion"， "4.4");
//if no need install don't add this
capabilities.setCapability("app"， app.getAbsolutePath());
capabilities.setCapability("appPackage"， "com.zhihu.android");
//support Chinese
capabilities.setCapability("unicodeKeyboard" ，"True");
capabilities.setCapability("resetKeyboard"， "True");
//no need sign
capabilities.setCapability("noSign"， "True");
capabilities.setCapability("appActivity"， ".ui.activity.GuideActivity");
driver = new AndroidDriver(new URL("http://127.0.0.1:4723/wd/hub")， capabilities);
}
@AfterMethod(alwaysRun=true)
public void tearDown() throws Exception {
driver.quit();
}
@Test(groups={"ZHTest"})
public void Login(){
//find login button
WebElement loginButton = driver.findElement(By.id("com.zhihu.android:id/login"));
loginButton.click();
//wait for 20s
driver.manage().timeouts().implicitlyWait(20， TimeUnit.SECONDS);
//find login userName and password editText
List<WebElement> textFieldsList = driver.findElementsByClassName("android.widget.EditText");
textFieldsList.get(0).sendKeys("seleniumcookies@126.com");
textFieldsList.get(1).sendKeys("cookies123");
driver.manage().timeouts().implicitlyWait(20， TimeUnit.SECONDS);
//find ok button byName
driver.findElementByName("OK").click();
driver.manage().timeouts().implicitlyWait(90， TimeUnit.SECONDS);
//find keyword 首页 and verify it is display
Assert.assertTrue( driver.findElement(By.name("首页")).isDisplayed());
}
}
　　接下来可以debug，首先启动Android模拟器 ，启动完毕后再明明很测试，若结果如下：

　　说明模拟器可以使用
　　接下来在命令行运行apppium
　　等待1-2分钟
　　run as testng，能看到自动安装，登陆知乎
　　PASSED: Login
　　===============================================
　　Default test
　　Tests run: 1， Failures: 0， Skips: 0
　　===============================================
　　===============================================
　　Default suite
　　Total tests run: 1， Failures: 0， Skips: 0
　　===============================================
　　[TestNG] Time taken by org.testng.reporters.EmailableReporter2@4474c7fe: 1938 ms
　　[TestNG] Time taken by org.testng.reporters.JUnitReportReporter@1fdf50a3: 121 ms
　　[TestNG] Time taken by [FailedReporter passed=0 failed=0 skipped=0]: 0 ms
　　[TestNG] Time taken by org.testng.reporters.XMLReporter@697748ae: 423 ms
　　[TestNG] Time taken by org.testng.reporters.jq.Main@68450212: 1669 ms
　　[TestNG] Time taken by org.testng.reporters.SuiteHTMLReporter@7f92deaf: 240 ms