renderChildrenOutsideViewport property
Whether to paint children inside the viewport only.
If false, every child will be painted. However the Scrollable is still the size of the viewport and detects gestures inside only.
Defaults to false. Must not be null. Cannot be true if clipToSize
is also true since children outside the viewport will be clipped, and
therefore cannot render children outside the viewport.
Implementation
final bool renderChildrenOutsideViewport;