Top 6 or 7 item of groupview of expandable listview do not refresh - expandablelistview

Question

I want to achieve a function which when I click the groupview item of expandable listview the item will appear a new imageview. If I click the No.9 or No.10 of the listview, evertthing goes fine while if I click the top 6 or 7(depand on the mobilephone) item of the listview, there would be nothing happen.So I wonder how to fix this problem.
The adapter of the expandable listview is below:
class RouteLineAdapter extends BaseExpandableListAdapter {
boolean isMt = false;
List<HashMap<String, String>> busRouteListInner = new ArrayList<HashMap<String, String>>();
RouteLineAdapter(boolean isMt) {
this.isMt = isMt;
if (isMt) busRouteListInner = busRouteListMt;
else busRouteListInner = busRouteListMo;
}
#Override
public Object getGroup(int groupPosition) {
if (groupPosition < busRouteListInner.size())
return busRouteListInner.get(groupPosition).get("station_name");
else return "";
}
#Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
View view = convertView;
final Animation refreshAnimation = AnimationUtils.loadAnimation(RealTime.this, R.anim.refresh_progress);
if (convertView == null) {
LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflater.inflate(R.layout.member_listview, null);
}
TextView busNo = (TextView) view.findViewById(R.id.busNumMember);
TextView stationName = (TextView) view
.findViewById(R.id.stationNameMember);
final ImageView refreshImageView = (ImageView) view.findViewById(R.id.refresh_businfo);
final ImageView collectImageView = (ImageView) view.findViewById(R.id.collect_businfo);
String tempSearchStationId = searchStationId;
if (!isMt && (groupCountMt > 0) && ((BasicUtils.convertStringToInt(searchStationId) - 1) > groupCountMt)) {
tempSearchStationId = BasicUtils.convertStringToInt(searchStationId) - groupCountMt + "";
}
if (refreshState == 1 && (BasicUtils.convertStringToInt(tempSearchStationId) - 1 == groupPosition)) {
refreshImageView.startAnimation(refreshAnimation);
} else if (refreshState == 0) {
refreshImageView.clearAnimation();
}
if (refreshState == 2 && (BasicUtils.convertStringToInt(tempSearchStationId) - 1 == groupPosition)) {
//it execute here,but not show imageview at the top item
Logs.d("is execuated");
refreshImageView.setVisibility(View.VISIBLE); refreshImageView.startAnimation(refreshAnimation);
refreshState = 3;
}
return view;
}
#Override
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
try {
if (convertView == null) {
LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.member_childitem, null);
}
globalView = convertView;
if (groupPosition != searchLocation) {
Logs.d(busDataList.get(0).get("station_count_remain") + " remain");
getBusInfoDetail(convertView);
searchLocation = groupPosition;
}
} catch (Exception e) {
e.printStackTrace();
Logs.e(e.getMessage(), "");
}
return convertView;
}
}
And in the handler ,the program do
routeLineAdapterMt.notifyDataSetChanged();
routeLineAdapterMt.notifyDataSetInvalidated();
to let the listview refresh