@Implementation
public long getItemIdAtPosition(int position) {
Adapter adapter = getAdapter();
return (adapter == null || position < 0)
? AdapterView.INVALID_ROW_ID
: adapter.getItemId(position);
}
@Override
public long getItemId(int position) {
for (int i = 0; i < headers.getCount(); i++) {
String section = headers.getItem(i);
Adapter adapter = sections.get(section);
if (adapter.getCount() > 0) {
int size = adapter.getCount() + 1;
// check if position inside this section
if (position < size) return adapter.getItemId(position - 1);
// otherwise jump into next section
position -= size;
}
}
return -1;
}