question: private View fillLeft ( int pos , int nextRight ) { if ( DEBUG ) Log . i ( TAG , "fillLeft() pos: " + pos + " nextRight: " + nextRight + M_FIRST_POSITION + mFirstPosition ) ; View selectedView = null ; final int end = mListPadding . left ; while ( nextRight > end && pos >= 0 ) { View temp = makeColumn ( pos , nextRight , false ) ; if ( temp != null ) { selectedView = temp ; } nextRight = mReferenceView . getLeft ( ) - mHorizontalSpacing ; mFirstPosition = pos ; pos -= mNumRows ; } if ( mStackFromBottom ) { mFirstPosition = Math . max ( 0 , pos + 1 ) ; } return selectedView ; }
target:  Fills the list from pos to the left of the list view.