question: private float minScale ( ) { if ( minimumScaleType == SCALE_TYPE_CENTER_INSIDE ) { return Math . min ( 1F , Math . min ( getWidth ( ) / ( float ) sWidth ( ) , getHeight ( ) / ( float ) sHeight ( ) ) ) ; } else { return Math . max ( getWidth ( ) / ( float ) sWidth ( ) , getHeight ( ) / ( float ) sHeight ( ) ) ; } }
target:  Returns the minimum allowed scale.