scrollFraction property

@override double get scrollFraction

Sub-cell scroll offset in [0.0, 1.0): how far the viewport is scrolled up past a line boundary, in fractions of a cell height. The painter shifts content down by scrollFraction * cellHeight and fills the revealed top sliver with the overscan row (cell row == -1). 0.0 on a line boundary.

Implementation

@override
double get scrollFraction => _scrollFraction;