Show Toolbar shadow only on scroll in CoordinatorLayout

Question

I would like to know how I can use a Toolbar / CollapsingToolbarLayout in a CoordinatorLayout to show a shadow only when content is scrolled under it and not otherwise (i.e. after the fragment is created it should not show a shadow until the user starts scrolling down a list). Preferably with just XML

(I don't think I need a AppBarLayout here, since the size of the toolbar is fixed and does not need the resizing or parallax effects etc..)

Any help with this is much appreciated

Does this answer your question? [Android toolbar elevation when scrolling](https://stackoverflow.com/questions/35724308/android-toolbar-elevation-when-scrolling) — Brais Gabin, Feb 11 '21 at 10:41

score 0 · Answer 1 · answered Jun 05 '18 at 23:32

0

You can try setting elevation of the toolbar. 0 elevation means no shadow.

toolbar.setElevation(int)

answered Jun 05 '18 at 23:32

Shashwat

172
1
10

I do want the elevation when content is being scrolled (also preferably in XML) – Bootstrapper Jun 05 '18 at 23:35
You can again call `setElevation()` when the user scrolls. Maybe put it in list's onScrollListener. – Shashwat Jun 05 '18 at 23:36

Show Toolbar shadow only on scroll in CoordinatorLayout

1 Answers1