gatorbad.blogg.se - Android studio recyclerview query

Getting system font names and using the fonts.Hardware Button Events/Intents (PTT, LWP, etc.).Header and Body: an Authentication Example.Download a file from Server using Retrofit2.Upload multiple file using Retrofit as multipart.Create Singleton Class for Toast Message.DayNight Theme (AppCompat v23.2 / API 14+).Storing Files in Internal & External Storage.Supporting Screens With Different Resolutions, Sizes.Adding a FuseView to an Android Project.

Public class MyAdapter extends RecyclerView. I have implemented the search on the basis of name only. The user is my Object class(or model class) and a list of user is associated with the adapter. You need to implement the three basic methods of RecyclerView.Adapter yourself. The code snippet contains only the filtering part.

Now let’s have a look at the code to get a better understanding.Before this a brief guide to the code snippet. “ onQueryTextChange” methods get the instance of filter by calling the getFilter Method.Īnd this will filter the items in your recycler view. Now set the “ setOnQueryTextListener” on your search view and in “ onQueryTextSubmit”.

Override the “ getFilter” method and this method return the object of your Filter class (MyFilter class in our case).

Make Adapterclass of your RecyclerView implements the Filterable interface.

Override the “ publishResults” method and in this method you will typecast the default filterResults.values to the list of objects associated with your Adapter.

Override the “ performFiltering” method and implement the logic on which you want to implement the search.

Make a constructor of MyFilter that takes in two parameters viz, Adapter associated with your recycler view and list that is currently associated with the adapter.

Create a class say MyFilter that extends Filter class.

In this blog, we will learn on how to implement the search on items of a recycler view and show only the items that are related to the key value searched for.