Code example for SpinnerAdapter

    return adapter.getViewTypeCount() + EXTRA;
} 
 
@Override 
public long getItemId(int position) {
    return adapter.getItemId(position - EXTRA);
} 
 
@Override 
public boolean hasStableIds() { 
    return adapter.hasStableIds();
} 
 
@Override 
public boolean isEmpty() { 
    return adapter.isEmpty();
} 
 
@Override 
public void registerDataSetObserver(DataSetObserver observer) {