tabsSwitchiOS

import io.appium.java_client.ios.IOSDriver;
import org.openqa.selenium.By;
import org.openqa.selenium.JavascriptExecutor;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.remote.DesiredCapabilities;
import org.openqa.selenium.support.ui.ExpectedConditions;
import org.openqa.selenium.support.ui.WebDriverWait;
import org.testng.annotations.AfterTest;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;

import java.net.MalformedURLException;
import java.net.URL;
import java.util.Iterator;
import java.util.Set;

public class IosTabs {

        public IOSDriver driver;
        public WebDriverWait wait;
        public static String AUTOMATE_USERNAME = "<username>";
        public static String AUTOMATE_ACCESS_KEY = "<accesskey>";
        public static final String URL = "https://" + AUTOMATE_USERNAME + ":" + AUTOMATE_ACCESS_KEY + "@hub-cloud.browserstack.com/wd/hub";
        static String currentwindow;

        @BeforeClass
        public void setup() throws MalformedURLException {
            DesiredCapabilities caps = new DesiredCapabilities();
            caps.setCapability("os_version", "13");
            caps.setCapability("device", "iPhone 11 pro");
            caps.setCapability("real_mobile", "true");
            caps.setCapability("browserstack.appium_version", "1.18.0");
            caps.setCapability("browserstack.local", "false");
            caps.setCapability("safariAllowPopups", "true");
            driver = new IOSDriver(new URL(URL), caps);
        }


        @Test
        public void display() throws InterruptedException {
            wait = new WebDriverWait(driver, 30);
            driver.get("https://skillsforall.com/");
            JavascriptExecutor js = driver;
            currentwindow = driver.getWindowHandle();
            WebElement element = wait.until(ExpectedConditions.elementToBeClickable(By.xpath("//a[@href='https://skillsforall.com/p/privacy.html']")));
            js.executeScript("arguments[0].scrollIntoView();", element);
            element.click();
            driver.switchTo().alert().accept();
            String mainWindowHandle = driver.getWindowHandle();
            Set<String> allWindowHandles = driver.getWindowHandles();
            Iterator<String> iterator = allWindowHandles.iterator();
            while (iterator.hasNext()) {
                String ChildWindow = iterator.next();
                if (!mainWindowHandle.equalsIgnoreCase(ChildWindow)) {
                    driver.switchTo().window(ChildWindow);
                    Thread.sleep(5000);
                    driver.close();
                }
            }

            driver.switchTo().window(mainWindowHandle);
        }


        @AfterTest
        public void destroy() {
            driver.quit();
        }

    }