Did you even read the article? > One example of this is collapsing, dynamic headers, which are, again, common already on the Web. The Groove Music app already

Did you even read the article? > One example of this is collapsing, dynamic headers, which are, again, common already on the Web. The Groove Music app already uses such a header; when viewing a particular artist, the header is shown with biographic text and a large picture. Scrolling down through the artist's songs shrinks the header, removing the text and using a small picture.