Changes

In addition, the AsyncTask to perform a product search will need to return the results to the repository object. This topic was covered in the chapter entitled TBD and begins with the addition of an interface class to the project. Add a new interface class named AsyncResult and modify it so that it reads as follows:

As outlined in details the chapter entitled TBD, a A RecyclerView instance requires an adapter class to provide the data to be displayed. Add this class now by right clicking on the app -> java -> com.ebookfrenzy.roomdemo -> ui.main entry in the Project tool window and selecting the New -> Java Class... menu option. In the Create New Class Dialog, name the class ProductListAdapter. With the resulting ProductListAdapter.java class loaded into the editor, implement the class as follows: