Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Android Android Lists and Adapters (2015) Custom ListViews getView() and the ViewHolder Pattern

Scott Junner
Scott Junner
9,010 Points

What is the ViewGroup root needed for?

In the video, mention is made of null in ...inflate(R.layout.daily_list_item, null); representing a ViewGroup root and is not needed in this situation.

What situation IS it needed for?

In Docs it says "Optional view to be the parent of the generated hierarchy." but I don't quite understand what that means. Someone paint a picture for me.