Searchable Recycleview in fragment

Question

I have a MainActivity that shows a Fragment containing a RecyclerView. I am loading data from SQL using an Asynctask, all the data shows perfectly.

What I want to know is, I've got a search icon in my toolbar inflated in the MainActivity, when the user clicks on it and enters data, it should filter through the RecyclerView in the Fragment.

I have already implemented SearchView.OnQueryTextListener in the MainActivity, I've also implemented methods onQueryTextChange() and onQueryTextSubmit(). I just don't know how to filter the RecyclerView in the Fragment directly using the search in the MainActivity.

Once the results are filtered you need to update the adapter list and call `notifyDatasetChanged()` — Chisko, Apr 06 '18 at 18:47

Balraj · Answer 1 · 2020-08-06T21:11:48.937

1

Create a method in your Adapter Class and implement it like this

To get your Recyclerview's Adapter reference in MainActivity or Host Activity you can ( but not recommended ) do like this:

RecyclerView recylerView = findViewById(R.id.my_recycler_view);
MyAdapter myAdapter = recyclerView.getAdapter();

Then in your onQueryTextChange() and onQueryTextSubmit() method do :

myAdapter.filter(queryText);

edited Aug 06 '20 at 21:11

answered Apr 06 '18 at 18:53

Balraj

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what is an item referring to? – ora Apr 22 '18 at 15:43
Your `List` element. – Balraj Apr 22 '18 at 18:39
can you please take a look at my question, I dont have one item – ora Apr 22 '18 at 18:43
I will give you plenty of points strarting from this +1 – ora Apr 22 '18 at 18:46
Yes, please point me to it. – Balraj Apr 22 '18 at 21:13
https://stackoverflow.com/questions/49958847/null-object-reference-in-recycleview – ora Apr 23 '18 at 09:05
cannot comment in your thread due to less than 50 reputation. Are you using ButterKnife to inject recyclerview? – Balraj Apr 23 '18 at 11:34
its okay comment here,no i dont use butterKnife – ora Apr 23 '18 at 13:28
can you show me where you're initialising recyclerview? – Balraj Apr 24 '18 at 08:00

Searchable Recycleview in fragment

1 Answers1