protected HeaderData[] generateHeaderList(StickyGridHeadersSimpleAdapter adapter) {
Map<Long, HeaderData> mapping = new HashMap<Long, HeaderData>();
List<HeaderData> headers = new ArrayList<HeaderData>();
for (int i = 0; i < adapter.getCount(); i++) {
long headerId = adapter.getHeaderId(i);
HeaderData headerData = mapping.get(headerId);
if (headerData == null) {
headerData = new HeaderData(i);
headers.add(headerData);
}
headerData.incrementCount();
mapping.put(headerId, headerData);
}
return headers.toArray(new HeaderData[headers.size()]);
}
@Override
public int getViewTypeCount() {
return mDelegate.getViewTypeCount();
}
@Override
public boolean hasStableIds() {
return mDelegate.hasStableIds();
}
@Override
public int getItemViewType(int position) {
return mDelegate.getItemViewType(position);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
return mDelegate.getView(position, convertView, parent);
}
@Override
public long getItemId(int position) {
return mDelegate.getItemId(position);
}
@Override
public Object getItem(int position) {
return mDelegate.getItem(position);
}
@Override
public View getHeaderView(int position, View convertView, ViewGroup parent) {
return mDelegate.getHeaderView(mHeaders[position].getRefPosition(), convertView, parent);
}
@Override
public int getCount() {
return mDelegate.getCount();
}
public StickyGridHeadersSimpleAdapterWrapper(StickyGridHeadersSimpleAdapter adapter) {
mDelegate = adapter;
adapter.registerDataSetObserver(new DataSetObserverExtension());
mHeaders = generateHeaderList(adapter);
}