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This chapter will combine the knowledge gained in the chapter entitled [[The Android Room Persistence Library]] with the initial project created in the previous chapter to provide a detailed tutorial demonstrating how to implement SQLite-based database storage using the Room persistence library. In keeping with the Android architectural guidelines, the project will make use of a view model and repository. The tutorial will make use of all of the elements covered in [[The Android Room Persistence Library]] including entities, a Data Access Object, a Room Databases and asynchronous database queries.

The user interface layout created in the previous chapter was the first step in creating a rudimentary inventory app designed to store the names and quantities of products. When completed, the app will provide the ability to add, delete and search for database entries while also displaying a scrollable list of all products currently stored in the database. This product list will update automatically as database entries are added or deleted.

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