Content behind CoordinatorLayout AppBarLayout
add this to your Recyclerview :
app:layout_behavior="@string/appbar_scrolling_view_behavior"
In my case the view under the toolbar wasn't scrollable so even though the accepted answer did stop the overlapping it pushed the content down by the height of the toolbar, pushing elements offscreen.The solution in this case was to also remove the
app:layout_scrollFlagsfrom the Toolbar that I was including/sharing with other layouts that had scrolling views.