We all probably use great apps that are built only using the standard Android UI widgets and layouts, but there are many others that have some custom views that we don't know or we haven't really noticed. The custom views or layouts can sometimes be very subtle and hard to spot.
We'd not be the first ones to have a custom view or layout in our application. In fact, many popular apps have some custom elements in them. Let's show some examples:
The first example will be the Etsy application. The Etsy application had a custom layout called StaggeredGridView. It was even published as open source in GitHub. It has been deprecated since 2015 in favor of Google's own StaggeredGridLayoutManager used together with RecyclerView ...
