Why in RecyclerView findViewByPosition() returns null on EditText

Question

I have an Activity, which has a RecyclerView and save Button. Each item (football match) of the RecyclerView contains some text (name of teams) and EditText, where user enters data (actually bet the match). My goal is to save those scores to the list in the Activity, when user clicked on save Button.

I implemented this method in Activity, which actually get particular item from LinearLayoutManager and then get data from EditText, but the findViewByPosition() method (or getChildAt() there are different way to do this) sometimes returns null.

I saw another answers on similar question, but they didn't help me. Maybe my strategy is wrong, because I made whole my logic in Activity (better to do this in Adapter?) and I get though all of my items in RecyclerView even if only in one user entered the score.

    private List<Bet> getUserBets() {
        View betView;
        Bet betItem;
        EditText userBet1;
        EditText userBet2;

        int numberOfMatches = rvBetsAdapter.getItemCount();
        List<Bet> bets = new ArrayList<>();

        for (int i = 0; i < numberOfMatches; i++)
        {
            betItem = rvBetsAdapter.getItem(i);
            betView = linearLayoutManager.findViewByPosition(i); 
            userScore1 = (EditText) betView.findViewById(R.id.result1); // <- NPE appears
            userScore2 = (EditText) betView.findViewById(R.id.result2);
            //here i checked whether the editText is empty and other stuff
            bets.add(betItem);
        }
        return bets;
    }

How do I fix it? I suppose I should do something in onBindViewHolder method in my adapter, but what exactly? I would really appreciate any help.

Answer 1

You should add to your Bet model variable which holds EditText value for example editTextValue.

And access it using list in adapter list like this end use EditText value from there. rvBetsAdapter.getItem(i).editTextValue

editTextValue can be set using TextWatcher.afterTextChanged() callback