RecyclerView Search with Room Database
The Recyclerview is the most common and convenient means of displaying rows upon rows of data in our Android apps. Let us look at a common use case in this article — one that concerns with filtering items when you search for keywords in a Room database.
Here, we’re gonna see the simplest method to implement a search functionality in an app which uses Room as the database in these 4 easy steps!
Let’s get started!
Step 1: Add a menu option and add a method implementing search query in the DAO for the database like this:
Step 2: Add a method in your database Repository and ViewModel classes for completing the MVP model:
Step 3: Add functionality to the search icon with onQueryTextListener in the onCreateOptionsMenu method in your MainActivity class:
Step 4: Finally, write the getItemsFromDb in your MainActivity.kt method to fetch the matching items from the database:
DONE!! Test it out!
The items in the recyclerview will now filter as you type in the searchbox!
Liked the article? Please leave a few claps! Thank you for reading! ❤
Do you want to get one free, clean email from me every week or two weeks containing the best of my curated articles and tutorials that I publish? Join my Codecast!
