I'm about to create an expandableListview with implemented Searchview. My SearchView can filter child items and only the child items. I want to create a search filter that can also filter the header items in expandablelistview. how can I do that?

here's my code for the expandablelistview with search filter. here is my Adapter: [code]package com.teamamazing.search; import java.text.NumberFormat; import java.util.ArrayList; import java.util.Locale; import android.content.Context; import android.graphics.Typeface; import android.media.MediaPlayer; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseExpandableListAdapter; import android.widget.TextView; import android.view.View.OnClickListener; public class Accomodation_Adapter extends BaseExpandableListAdapter { private Context context; private ArrayList<AccomodationHeaderRow> headerRows; private ArrayList<AccomodationHeaderRow> originalList; public Accomodation_Adapter(Context context, ArrayList<AccomodationHeaderRow> headerRows) { this.context = context; this.headerRows = new ArrayList<AccomodationHeaderRow>(); this.headerRows.addAll(headerRows); this.originalList = new ArrayList<AccomodationHeaderRow>(); this.originalList.addAll(headerRows); } @Override public Object getChild(int groupPosition, int childPosition) { ArrayList<AccomodationChildRow> childRows = headerRows.get(groupPosition).getChildRow(); return childRows.get(childPosition); } @Override public long getChildId(int groupPosition, int childPosition) { return childPosition; } @Override public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View view, ViewGroup parent) { AccomodationChildRow child = (AccomodationChildRow) getChild(groupPosition, childPosition); if (view == null) { LayoutInflater layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); view = layoutInflater.inflate(R.layout.activity_accomodation_child_row, null); } TextView name = (TextView) view.findViewById(R.id.child_items);; name.setText(child.getName().trim()); return view; } @Override public int getChildrenCount(int groupPosition) { ArrayList<AccomodationChildRow> childRows = headerRows.get(groupPosition).getChildRow(); return childRows.size(); } @Override public Object getGroup(int groupPosition) { return headerRows.get(groupPosition); } @Override public int getGroupCount() { return headerRows.size(); } @Override public long getGroupId(int groupPosition) { return groupPosition; } @Override public View getGroupView(int groupPosition, boolean isExpanded, View view, ViewGroup parent) { AccomodationHeaderRow accomodationHeaderRow = (AccomodationHeaderRow) getGroup(groupPosition); if (view == null) { LayoutInflater layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); view = layoutInflater.inflate(R.layout.activity_accomodation_header_row, null); } TextView heading = (TextView) view.findViewById(R.id.accomodation_headings); heading.setText(accomodationHeaderRow.getName().trim()); // If group is expanded then change the text into bold and change the // icon if (isExpanded) { heading.setTypeface(null, Typeface.BOLD); heading.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0); } else { // If group is not expanded then change the text back into normal // and change the icon heading.setTypeface(null, Typeface.NORMAL); heading.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0); } return view; } @Override public boolean hasStableIds() { return true; } @Override public boolean isChildSelectable(int groupPosition, int childPosition) { return true; } public void filterData(String query){ query = query.toLowerCase(); Log.v("Accomodation_Adapter", String.valueOf(headerRows.size())); headerRows.clear(); if(query.isEmpty()){ headerRows.addAll(originalList); } else { for(AccomodationHeaderRow accomodationHeaderRow: originalList){ ArrayList<AccomodationChildRow> accomodationChildRows = accomodationHeaderRow.getChildRow(); ArrayList<AccomodationChildRow> newList = new ArrayList<AccomodationChildRow>(); for(AccomodationChildRow accomodationChildRow: accomodationChildRows){ if(accomodationChildRow.getName().toLowerCase().contains(query)){ newList.add(accomodationChildRow); } } if(newList.size() > 0){ AccomodationHeaderRow nAccomodationHeaderRows = new AccomodationHeaderRow(accomodationHeaderRow.getName(),newList); headerRows.add(nAccomodationHeaderRows); } } } Log.v("Accomodation_Adapter", String.valueOf(headerRows.size())); notifyDataSetChanged(); } }[/code] Small Bio