I’m new to android java programming. I’m using MVVM and I have a search method in my DAO. when I use that method to search for something in recyclerview, it works fine and I can update, delete and onClick on the result of search. However, after that, if I try to edit or delete an item directly, after I press the update or delete button, it shows the word that I searched for.

Below is my search method in DAO

@Query("SELECT * FROM vocabularytable WHERE Vocabulary LIKE '%' ||:vocabulary || '%'  OR Definition LIKE '%' ||:vocabulary || '%'")
    LiveData<List<Vocabulary>> search(String vocabulary);

Here is my RecyclerViewAdapter

public class RecycleViewAdapter extends RecyclerView.Adapter<RecycleViewAdapter.VIewHolder> {

    private final List<Vocabulary> vocabularyList; // Original list
    private final List<Vocabulary> displayList; // List used for displaying
    private final Context context;
    private final onVocabularyClickListener onVocabularyClickListener;

    public RecycleViewAdapter(List<Vocabulary> vocabularyList, Context context, onVocabularyClickListener onVocabularyClickListener) {
        this.vocabularyList = vocabularyList;
        this.displayList = new ArrayList<>(vocabularyList);
        this.context = context;
        this.onVocabularyClickListener = onVocabularyClickListener;
    }




    @NonNull
    @Override
    public RecycleViewAdapter.VIewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.activity_vocabulary, parent, false);

        return new VIewHolder(view, onVocabularyClickListener);
    }

    @Override
    public void onBindViewHolder(@NonNull RecycleViewAdapter.VIewHolder holder, int position) {
        holder.vocabularyBind(displayList.get(position));
    }

    @Override
    public int getItemCount() {
        return displayList.size();
    }

    public class VIewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {

        private final AppCompatTextView tvVocabulary;
        private final AppCompatTextView tvDefinition;
        private final AppCompatImageButton imgBtnEdit;
        private final AppCompatImageButton imgBtnDelete;
        onVocabularyClickListener onVocabularyClickListener;

        public VIewHolder(@NonNull View itemView, onVocabularyClickListener onVocabularyClickListener) {
            super(itemView);

            tvVocabulary = itemView.findViewById(R.id.tvVocabulary);
            tvDefinition = itemView.findViewById(R.id.tvDefinition);
            imgBtnEdit = itemView.findViewById(R.id.imgBtnEdit);
            imgBtnDelete = itemView.findViewById(R.id.imgBtnDelete);
            this.onVocabularyClickListener = onVocabularyClickListener;
            itemView.setOnClickListener(this);
            imgBtnEdit.setOnClickListener(this);
            imgBtnDelete.setOnClickListener(this);

        }

        @Override
        public void onClick(View v) {

            if (v.getId() == R.id.imgBtnEdit) {
                onVocabularyClickListener.onEditVocabularyClick(getAdapterPosition());
            } else if (v.getId() == R.id.imgBtnDelete) {
                onVocabularyClickListener.onDeleteVocabularyClick(getAdapterPosition());
            } else {
                onVocabularyClickListener.onVocabularyClick(getAdapterPosition());
            }
        }
        public void vocabularyBind(Vocabulary vocabulary) {


            tvVocabulary.setText(vocabulary.getVocabulary());

            tvDefinition.setText(vocabulary.getDefinition());
        }

    }

    public void filterList(List<Vocabulary> filteredList) {
            displayList.clear();
            displayList.addAll(filteredList);
            notifyDataSetChanged();
    }
    public void resetList(List<Vocabulary> originalList) {
        displayList.clear();
        displayList.addAll(originalList);
        notifyDataSetChanged();
    }



    public Vocabulary getVocabularyAtPosition(int position) {
        return displayList.get(position);

    }

    public interface onVocabularyClickListener {
        void onVocabularyClick(int position);

        void onDeleteVocabularyClick(int position);

        void onEditVocabularyClick(int position);

    }
}

And here the MainActivity( I am using edit text for search

This is where I load dada to recyclerview for when I open the application( calling this method in onCreate

private void recyclerLoad() {

        vocabularyViewModel = new ViewModelProvider.AndroidViewModelFactory(MainActivity.this.getApplication()).create(VocabularyViewModel.class);
        vocabularyViewModel.getAllData.observe(this, vocabularies -> {
            recycleViewAdapter = new RecycleViewAdapter(vocabularies, MainActivity.this, MainActivity.this);
            recyclerView.setAdapter(recycleViewAdapter);
        });
    }

searchView.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {

            }

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {

                String query =s.toString();
                if (!query.isEmpty()) {
                    vocabularyViewModel.search(query).observe(MainActivity.this, (List<Vocabulary> list) -> {
                        recycleViewAdapter.filterList(list);
                    });
                } else {
                    searchView.clearFocus();
                    hideKeyboard(searchView);
                    refreshVocabularyList();
                }
            }

            @Override
            public void afterTextChanged(Editable s) {
            }
        });

**Method for when I click on an item**

@Override
    public void onVocabularyClick(int position) {
        searchView.clearFocus();
        DialogFragment.isDelete = false;
        DialogFragment.isEdit = false;
        Vocabulary vocabulary = recycleViewAdapter.getVocabularyAtPosition(position);
        Bundle bundle = new Bundle();
        bundle.putParcelable("vocabulary", vocabulary);
        showFragment.setArguments(bundle);
        FragmentManager manager = getSupportFragmentManager();
        FragmentTransaction transaction = manager.beginTransaction();
        transaction.replace(R.id.mainLayout, showFragment)
                .addToBackStack(null)
                .commit();
    }

**For when I click on delete (imageButton) next to an item**

    @Override
    public void onDeleteVocabularyClick(int position) {
        searchView.clearFocus();
        DialogFragment.isEdit = false;
        DialogFragment.isDelete = true;
        Vocabulary vocabulary = recycleViewAdapter.getVocabularyAtPosition(position);
        Bundle bundle = new Bundle();
        bundle.putParcelable("vocabulary", vocabulary);
        dialogFragment.setArguments(bundle);
        dialogFragment.show(getSupportFragmentManager(), null);
    }

**When I click on edit (imageButton) next to an item**
    @Override
    public void onEditVocabularyClick(int position) {
        searchView.clearFocus();
        DialogFragment.isDelete = false;
        DialogFragment.isEdit = true;
        Vocabulary vocabulary = recycleViewAdapter.getVocabularyAtPosition(position);
        Bundle bundle = new Bundle();
        bundle.putParcelable("vocabulary", vocabulary);
        dialogFragment.setArguments(bundle);
        dialogFragment.show(getSupportFragmentManager(), null);

    }

**When I click on save button in a dialog to enter new words**
    @Override
    public void onDialogSave(Vocabulary vocabulary) {
        if (vocabulary != null) {
            searchView.clearFocus();
            VocabularyViewModel.insert(vocabulary);
            refreshVocabularyList(); // Refresh the list after saving
            dialogFragment.dismiss();
        }
    }


**When I click on update button in the update dialog**
    @Override
    public void onDialogUpdate(Vocabulary vocabulary) {
        if (vocabulary != null) {
            VocabularyViewModel.update(vocabulary);
            refreshVocabularyList(); //Refresh the list after updating
            dialogFragment.dismiss();
        } else {
            Toast.makeText(this, "Please fill all the fields", Toast.LENGTH_SHORT).show();
        }
    }

**When I click on delete button in the delete dialog**
    @Override
    public void onDialogDelete(Vocabulary vocabulary) {
        if (vocabulary != null) {
            VocabularyViewModel.delete(vocabulary);
            refreshVocabularyList(); //Refresh the list after deleting
            dialogFragment.dismiss();
        }
    }

    private void refreshVocabularyList() {
        vocabularyViewModel.getAllData.observe(MainActivity.this, vocabularies ->{
            /*vocabularyList.clear();
            vocabularyList.addAll(vocabularies);*/
            recycleViewAdapter.resetList(vocabularies); // Reset to original list
    });

    }

First I search for a word. it shows and I can click on it, edit or delete it from now on, if I try to edit or delete a word directly from the list( not searching for that),after I do that, it shows the word that is in the search list not the whole list or the whole updated list, or now it shows nothing. it used to show the word I searched for