How to implement autocompletetextview with listview?

First create a custom adapter implements filterable:

public class MyFilterableAdapter extends BaseAdapter implements Filterable {
    private Context context;
    private List<String> items;
    private List<String> filteredItems;
    private ItemFilter mFilter = new ItemFilter();

    public MyFilterableAdapter(Context context, List<String> items) {
        //super(context, R.layout.your_row, items);
        this.context = context;
        this.items = items;
        this.filteredItems = items;
    }

    @Override
    public int getCount() {
        return filteredItems.size();
    }

    @Override
    public Object getItem(int position) {
        return filteredItems.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder viewHolder;

        if (convertView == null) {
            LayoutInflater inflater = (LayoutInflater) context
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);

            convertView = inflater.inflate(R.layout.row_search_merchant, parent, false);
            viewHolder = new ViewHolder();
            viewHolder.tvTitle = (TextView) convertView.findViewById(R.id.tv_title);
            convertView.setTag(viewHolder);
        } else {
            viewHolder = (ViewHolder) convertView.getTag();
        }

        String location = filteredItems.get(position);
        if (!location.isEmpty() || viewHolder != null) {
            viewHolder.tvTitle.setText(location);
        }
        return convertView;
    }

    public static class ViewHolder {
        TextView tvTitle;
    }

    private class ItemFilter extends Filter {
        @Override
        protected FilterResults performFiltering(CharSequence constraint) {
            String filterString = constraint.toString().toLowerCase();
            FilterResults results = new FilterResults();

            int count = items.size();
            final List<String> tempItems = new ArrayList<>(count);

            for (int i = 0; i < count; i++) {
                if (items.get(i).toLowerCase().contains(filterString)) {
                    tempItems.add(items.get(i));
                }
            }

            results.values = tempItems;
            results.count = tempItems.size();

            return results;
        }

        @SuppressWarnings("unchecked")
        @Override
        protected void publishResults(CharSequence constraint, FilterResults results) {
            filteredItems = (ArrayList<String>) results.values;
            notifyDataSetChanged();
        }
    }

    public Filter getFilter() {
        return mFilter;
    }
}

And than create a textwatcher

public class MyTextWatcher implements TextWatcher {
    private MyCustomAdapter lAdapter;

    public MyTextWatcher(MyCustomAdapter lAdapter) {
        this.lAdapter = lAdapter;
    }

    @Override
    public void beforeTextChanged(CharSequence s, int start, int count, int after) {

    }

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

    }

    @Override
    public void afterTextChanged(Editable s) {
        lAdapter.getFilter().filter(s.toString().toLowerCase());
    }
}

And finally add your TextWatcher to your Search Edit Text:

final MyCustomAdapter lAdapter = new MyCustomAdapter(context, items);
EditText etSearch = (EditText) view.findViewById(R.id.et_search);
        etSearch.addTextChangedListener(new SearchTextWatcher(lAdapter));

I hope this’ll help you.