Tab indicator in Xamarin Forms Tabbed Page placed at bottom

I have a Xamarin Forms bottom placed tabbed page rendered using C#. I want a tab indicator to be displayed above each tab icons as it would in a top placed tabbed page. Is it possible? I am not able to find solution anywhere. I came across this SO post - https://stackoverflow.com/a/41570159/10329199, where we can define app:tabIndicatorColor="#123456" in Tabbar.axml. But I didnt work because I'm rendering the tabbar using C# not in AXML. I also want this tab indicator in iOS. Thanks