Challenge: An Empty View for the RecyclerView
Currently, when CriminalIntent launches it displays an empty RecyclerView – a big white void. You should give users something to interact with when there are no items in the list.
For this challenge, display a message like There are no crimes and add a button to the view that will trigger the creation of a new crime.
Use the visibility property that exists on any View class to show and hide this new placeholder view when appropriate.