question: private int makeMeasureSpec ( int measureSpec , int maxSize ) { if ( maxSize == SIZE_UNSPECIFIED ) { return measureSpec ; } final int size = MeasureSpec . getSize ( measureSpec ) ; final int mode = MeasureSpec . getMode ( measureSpec ) ; switch ( mode ) { case MeasureSpec . EXACTLY : return measureSpec ; case MeasureSpec . AT_MOST : return MeasureSpec . makeMeasureSpec ( Math . min ( size , maxSize ) , MeasureSpec . EXACTLY ) ; case MeasureSpec . UNSPECIFIED : return MeasureSpec . makeMeasureSpec ( maxSize , MeasureSpec . EXACTLY ) ; default : throw new IllegalArgumentException ( "Unknown measure mode: " + mode ) ; } }
target:  Makes a measure spec that tries greedily to use the max value.