public void clearSelectedPositions(){
  if (mSelectMode == ISelectable.SELECT_MODE_MULTI) {
    mSelectedPositions.clear();
  }
 else {
    mSelectedPosition=ISelectable.INVALID_POSITION;
  }
}

public void clearSelectedPositions ( ) { if ( mSelectMode == ISelectable . SELECT_MODE_MULTI ) { mSelectedPositions . clear ( ) ; } else { mSelectedPosition = ISelectable . INVALID_POSITION ; } }
clear the select state but not notify data changed .
