appium 获取元素空指针问题

servleter · 发表于 2020-9-9 14:15:41

package appium;

import org.testng.annotations.AfterClass;
import org.testng.annotations.Test;
import org.testng.annotations.BeforeClass;
import io.appium.java_client.AppiumDriver;
import io.appium.java_client.android.AndroidDriver;

import org.testng.annotations.BeforeClass;
import org.testng.xml.dom.Tag;

import java.net.MalformedURLException;
import java.net.URL;
import java.util.concurrent.TimeUnit;

import org.openqa.selenium.WebElement;
import org.openqa.selenium.remote.DesiredCapabilities;
import org.testng.annotations.AfterClass;

public class APPiumTest {

   AppiumDriver driver;

   @BeforeClass
   public void beforeClass() throws MalformedURLException {
   DesiredCapabilities des = new DesiredCapabilities();
   des.setCapability("deviceName", "Android Emulator");
   des.setCapability("platformName", "Android");
   des.setCapability("platformVersoin", "4.4.2");
   des.setCapability("appPackage", "com.android.calculator2");
   des.setCapability("appActivity", ".Calculator");
   driver=new AndroidDriver(new URL("http://localhost:4723/wd/hub"),des);
   }
   @Test
   public void Test() {
   System.out.println("开始");
   driver.manage().timeouts().implicitlyWait(10,TimeUnit.SECONDS);//隐式等待
   driver.findElementById("com.android.calculator2:id/digit7").click();
   driver.findElementById("com.android.calculator2:id/digit4").click();
   driver.findElementById("com.android.calculator2:id/plus").click();
   driver.findElementById("com.android.calculator2:id/digit1").click();
   driver.findElementById("com.android.calculator2:id/digit6").click();
   driver.findElementById("com.android.calculator2:id/equal").click();
   String num = driver.findElementByClassName("android.widget.EditText").getText();
   System.out.println(num);
   }
   @AfterClass
   public void afterClass() {
   driver.quit();
   }

}

  driver.findElementById("com.android.calculator2:id/digit7").click();处开始空指针