In-depth migration guide available

Code before migration:

final

ScrollBehavior

scrollBehavior

ScrollBehavior

();

scrollBehavior

buildViewportChrome

context

child

axisDirection

);

Code after migration:

final

ScrollBehavior

scrollBehavior

ScrollBehavior

();

scrollBehavior

buildOverscrollIndicator

context

child

axisDirection

);

References

Design document:

Exposing & Updating ScrollBehaviors

API documentation:

ScrollBehavior

Relevant issues:

Scrollbars should be always visible and instantiated by default on web and desktop