How to highlight filtered text in RecyclerView when using SearchView widget

Question

How to highlight search text result in RecyclerView. I found some posts regarding Spannable TextView, but not sure where to implement in my case. Appreciate you can look an

Answer 1

Use inside on Bind view holder in Adapter class

String title1 = Itemlist.get(position).getN_stall_name().toLowerCase(Locale.getDefault());
            holder.title.setText(Itemlist.get(position).getN_stall_name());

if (title1.contains(searchText)) {
                int startPos = title1.indexOf(searchText);
                int endPos = startPos + searchText.length();
                Spannable spanString = Spannable.Factory.getInstance().newSpannable(holder.title.getText());
                spanString.setSpan(new ForegroundColorSpan(Color.RED), startPos, endPos, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
                holder.title.setText(spanString);
            }

And now create public method in Adapter class

 public void updateList(List list, String searchText) {
            Itemlist = new ArrayList<>();
            Itemlist.addAll(list);
            this.searchText = searchText;
            notifyDataSetChanged();
        }

Search view listener use inside Activity where you use search view

SearchView searchview=findviewbyid(R.id.searchview);
    searchview.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
                @Override
                public boolean onQueryTextSubmit(String query) {
                    return false;
                }
                @Override
                public boolean onQueryTextChange(String newText) {
                    newText = newText.toLowerCase();
                    ArrayList newList = new ArrayList<>();
                    for (GetShop userInfo : items) {
                        String type = userInfo.getN_stall_name().toLowerCase();
                        if (type.contains(newText)) {
                            newList.add(userInfo);
                        }
                    }
                    disp_adapter.updateList(newList, newText);
                    return true;
                }
            });