Scroll to element is not possible on iOS Simulator

[mszumilas]

Hi, I perform

By elementName = By.id("element"); RemoteWebElement element = (RemoteWebElement) driver.findElement(elementName); String elementID = element.getId(); HashMap<String, String> scrollObject = new HashMap<String, String>(); scrollObject.put("element", elementID); scrollObject.put("toVisible", "true"); driver.executeScript("mobile:scroll", scrollObject);

on the simulator with iOS 11.4. Application before running this method is in the view where element is present. I get this error:

org.openqa.selenium.WebDriverException: An unknown server-side error occurred while processing the command. Original error: Error Domain=com.facebook.WebDriverAgent Code=1 "Failed to find scrollable visible parent with 2 visible children" UserInfo={NSLocalizedDescription=Failed to find scrollable visible parent with 2 visible children} Build info: version: '3.12.0', revision: '7c6e0b3', time: '2018-05-08T14:04:26.12Z' System info: host: 'My-Mac-mini.local', ip: '', os.name: 'Mac OS X', os.arch: '', os.version: '10.13.6', java.version: '10.0.1' Driver info: io.appium.java_client.ios.IOSDriver Capabilities {app: /Users/{username}/Docum..., browserName: , databaseEnabled: false, deviceName: iPhone Simulator, javascriptEnabled: true, locationContextEnabled: false, networkConnectionEnabled: false, platform: MAC, platformName: iOS, platformVersion: 11.4, takesScreenshot: true, udid: AB2086DA-DA44-4CA8-B565-336..., webStorageEnabled: false} Session ID: 3c649cbd-706d-473d-87cc-a171d7ce9f96

Any help how to run this scroll?

[sumanthvakacharla]

Better to use touchActions than executeScript (element to element scrolling). Scroll is very slow or not at all working with some appium and Mac OS, Xcode combination of versions. But touchActions is also broken in 1.9.1 Appium Server with Appium Desktop 1.8.2 iOS 12 Mojave update and Xcode update 10.1 Better not to update. Android is super best in scrolling functionality, Don't know why Appium or Apple team is not taking at most care while rolling an update.

[lubbo]

But touchActions is also broken in 1.9.1 Appium Server with Appium Desktop 1.8.2 iOS 12 Mojave update and Xcode update 10.1 Better not to update.

Can you provide a related issue(s) to that problem? I actually can't scroll using any methods (scroll script, touchActions) on real device using Xcode 10.1 Mojave iOS 12 Appium 10

Result is no error but no scroll

[Sumanth9318]

I have made a code to force scroll using execute script. That's working for me surprisingly. But touch actions is not working as expected

[lubbo]

I have made a code to force scroll using execute script. That's working for me surprisingly. But touch actions is not working as expected

It would be nice if you can provide that script! Thks

[Sumanth9318]

class Scrolling():
    def scroll_to_element(self, element_name, direction = "down", click = False):
        visibility = False
        # Scroll until element is visible 
        while (visibility == False):
            try:
                # Trying to identify the element in first attempt
                destination_element = self.driver.find_element_by_name(element_name)
                self.test.wait(2)

                visibility = destination_element.is_displayed()
                # Add this condition as some elements are able to be identified by the driver but still are not visible.
                if not visibility:
                    raise Exception
            except:
                # Use execute script instead of TouchAction because TouchAction needs the element to be visible.
                self.driver.execute_script("mobile: scroll", {"direction": direction})

        if(click):
            destination_element.click()
        else:
            return destination_element