correctBy method

void correctBy (double correction)

Apply a layout-time correction to the scroll offset.

This method should change the pixels value by correction, but without calling notifyListeners. It is called during layout by the RenderViewport, before applyContentDimensions. After this method is called, the layout will be recomputed and that may result in this method being called again, though this should be very rare.

See also:

  • jumpTo, for also changing the scroll position when not in layout. jumpTo applies the change immediately and notifies its listeners.

Implementation 

void correctBy(double correction);