This is a blank project generated by Android Studio 3.3 Beta 3.
A RecyclerView has been added to activity_main.xml using tools:listitem
to get a preview of the list-items.
As expected, the layout-editor shows a list of items in the list.
To test a custom view which extends RecyclerView, TestRecyclerView
has been added and the layout has been altered to use this instead.
After building the project, the layout-editor only shows a white space instead of the list-items.
