java - 无法在appium中初始化驱动程序。找不到错误。附截图

Question

我正在尝试使用 junit cucumber 设置一个框架，但每次当我在页面类中扩展以使用 driver.findelements 时，驱动程序都会返回 null。

package core;

import java.net.MalformedURLException;
import java.net.URL;

import org.openqa.selenium.remote.DesiredCapabilities;

import io.appium.java_client.MobileElement;
import io.appium.java_client.android.AndroidDriver;
import io.appium.java_client.remote.MobileCapabilityType;

public class DriverFactory {

    protected static AndroidDriver<MobileElement> driver;

    public void createdriver() throws MalformedURLException
    {

        DesiredCapabilities cap = new DesiredCapabilities();

        cap.setCapability(MobileCapabilityType.DEVICE_NAME, "MS OnePlus7");
        cap.setCapability(MobileCapabilityType.PLATFORM_VERSION, "9");
        cap.setCapability(MobileCapabilityType.AUTOMATION_NAME, "uiautomator2");
        cap.setCapability(MobileCapabilityType.APP, "C:\\framework\\src\\test\\Resources\\APK\\Telegram.apk");
        cap.setCapability(MobileCapabilityType.NEW_COMMAND_TIMEOUT, 60);
        cap.setCapability(MobileCapabilityType.NO_RESET, true);
        cap.setCapability(MobileCapabilityType.UDID, "62afbd2d");

        driver = new AndroidDriver<MobileElement>(new URL("http://127.0.0.1:4723/wd/hub"), cap);
    }
}



package pages;

import org.openqa.selenium.By;

import core.DriverFactory;

public class telegrampage extends DriverFactory {


    public void openhome()
    {
        System.out.println("driver is returning "+driver);
        driver.findElement(By.xpath("//android.widget.FrameLayout[@content-desc='New Message']"));
    }
}

有人可以指导我为什么当我从 DriverFactory 继承时会得到“null”

Answer 1

在使用driver.findElement()方法之前，需要先调用createdriver()方法。
将您的 openhome() 方法更改为:

public void openhome()
{
    DriverFactory driverFactory = new DriverFactory();
    driverFactory.createdriver();
    System.out.println("driver is returning "+driver);
    driver.findElement(By.xpath("//android.widget.FrameLayout[@content-desc='New Message']"));
}