BottomBarVisibility class abstract

The base class of widgets that manage the visibility of the child based on the enclosing sheet's position.

Intended to be used as the SheetContentScaffold.bottomBar. For example, the StickyBottomBarVisibility can be used to keep the child always visible regardless of the sheet position. You may want to use the ResizeScaffoldBehavior.avoidBottomInset with setting maintainBottomBar to true to keep the bottom bar visible even when the onscreen keyboard is open.

final scaffold = SheetContentScaffold(
  resizeBehavior: const ResizeScaffoldBehavior.avoidBottomInset(
    maintainBottomBar: true,
  ),
  body: SizedBox.expand(),
  bottomBar: StickyBottomBarVisibility(
    child: BottomAppBar(),
  ),
);

See also:

• FixedBottomBarVisibility, which places the child at the bottom of the sheet.
• StickyBottomBarVisibility, which keeps the child always visible regardless of the sheet position.
• ConditionalStickyBottomBarVisibility, which changes the visibility of the child based on a condition.
• AnimatedBottomBarVisibility, which animates the visibility of the child.