get visible item in RecyclerView

Question

How can I get a current item in RecycerView? In my use-case RV item takes all screen space, so there is only one item at a time. I've tried to google before, but nothing helpful was found.

The whole use case:

UI. The bottom navigation has a button that should call a certain method (let's say a foo() method) in fragment
this foo() method should get a visible item from the adapter and call a specific method in a presenter.

score 4 · Answer 1 · answered Aug 21 '17 at 12:40

4

use this in your code

    LinearLayoutManager mLayoutManager;
mLayoutManager = new LinearLayoutManager(this);
mRecyclerView.setLayoutManager(mLayoutManager);

and get your visible item using below code

mLayoutManager.findFirstVisibleItemPosition();

answered Aug 21 '17 at 12:40

Vinayak B

4,430
4
28
58

yeah, I can get a position, but how I can get an item? Even more, based on this answer (https://stackoverflow.com/a/25053500/1752729), it is not the best approach – P. Savrov Aug 21 '17 at 13:29

score 1 · Answer 2 · answered Aug 21 '17 at 12:47

1

You could also use an OnItemClickListener on your RecyclerView's ListAdapter to determine the current item. In that case the item needs to be clicked though.

answered Aug 21 '17 at 12:47

eheller

117
1
1
13

it's not my use case( – P. Savrov Aug 23 '17 at 10:15

score 0 · Answer 3 · answered Aug 23 '17 at 10:19

My solution

val position = (recyclerView?.layoutManager as LinearLayoutManager).findFirstVisibleItemPosition()
val product = adapter?.getItemByPosition(position)
FirebaseCrash.logcat(Log.DEBUG, TAG, "onNavClickEvent = $product")
product?.let { productListViewModel?.order(it.id) }

The result is:

onNavClickEvent = Product(id=1, title='Cap', description='some descr.', price=10, photo='http://lorempixel.com/200/200/sports/1/')

get visible item in RecyclerView

3 Answers3