public T firstItem(){
  if (mDataList == null || mDataList.size() == 0) {
    return null;
  }
  return mDataList.get(0);
}

public T firstItem ( ) { if ( mDataList == null || mDataList . size ( ) == 0 ) { return null ; } return mDataList . get ( 0 ) ; }
the first item in list
