Swiping the Content page does not swipe the title to next title

Hi Sir ... When i swipe the content page to the next page of the PagingMenuController , The moment of the underline or the selector of the title should start when we start swiping the page , But the code does not work like this ... Its not working as shown in the example

The movement of the underline starts after the swiping of the whole page is done and starts the movement to next title

Can you help me with this Sir ..

There was huge changes of animation codes, so example gif shows wrong one which is older version. Sorry for my inconvenience...

Well, it's connected to other issue. It'll be fixed in the future, but it's how it works for now.