Troubleshooting Webview with Ruby:

Readme.md

Once this is included in your project you can use

Helper.find_web_element("div#ad_banner")

If if does not work then the element does not exist. I am sure the code can be cleaned up but this is how I managed to solve my issues with hybrid app testing.

helper.rb

DEFAULT_WAIT = 60
class Helper
    def self.find_web_element(css)
        handles = $driver.window_handles
        $driver.manage.timeouts.implicit_wait = 5
        handles.each do |window|
            $driver.switch_to.window(window)
            begin
                el = $driver.find_element(:css,css)
                if el
                    return el 
                else
                    return false
                end
            rescue
            end
        end
        $driver.execute_script("mobile: leaveWebView")
        $driver.manage.timeouts.implicit_wait = DEFAULT_WAIT
    end

    def self.find_web_elements(css)
        handles = $driver.window_handles
        $driver.manage.timeouts.implicit_wait = 5
        handles.each do |window|
            $driver.switch_to.window(window)
            begin
                els = $driver.find_elements(:css,css)
                return els if els.length > 0
            rescue
            end
        end
        $driver.execute_script("mobile: leaveWebView")
        $driver.manage.timeouts.implicit_wait = DEFAULT_WAIT
    end
end