Programmatically collapse or expand CollapsingToolbarLayout

android android-collapsingtoolbarlayout
Tomas picture Tomas · Jun 5, 2015 · Viewed 88.3k times · Source

Simple question, but I can't find an answer. How can I collapse or expand the CollapsingToolbarLayout programmatically?

collapsed toolbar

↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓

expanded toolbar

Answer

jaxvy picture jaxvy · Aug 21, 2015

Using Support Library v23, you can call appBarLayout.setExpanded(true/false).

Further reading: AppBarLayout.setExpanded(boolean)

Related questions

Show CollapsingToolbarLayout title only when collapsed

I've tried setExpandedTitleColor and setCollapsedTitleColor (switching to and from transparent) with no luck. I can't see any built in methods that'll do what I'm looking for, either. I only want to show the title when the CollapsingToolbarLayout is fully collapsed, …

Read More
Add app bar scrolling view behavior to multiple views in CoordinatorLayout

I am looking to add scroll support to more than just a single, scrollable, child view of CoordinatorLayout in conjunction with an AppBarLayout and CollapsingToolbarLayout. When scrolling the RecyclerView or the AppBarLayout (condensed code below), the app bar and its …

Read More
Android CollapsingToolbarLayout collapse Listener

I am using CollapsingToolBarLayout alongside with AppBarLayout and CoordinatorLayout, and they are working Fine altogether. I set my Toolbar to be fixed when I scroll up, I want to know if there is a way to change the title text …

Read More