<When I filter a recyclerview with a MutableList, ...

# stackoverflow

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When I filter a recyclerview with a MutableList, and an item changes, the filter doen't work
So here is my problem. I want to use a filter on my recyclerview, and it works fine.
But every item from my list has a button to add the item to the "favourite" table. And when the user whatns to use the filter and then clicks on any button, the filter is not working: instead of showing just a few items (the ones filtered), all of them appear again.What can I do?
My adapter:
class DarkRideRecyclerViewAdapter( val listener: DarkRideListener,
val context:...