A Flex (Column/Row) like widget for slivers #33137
Description
Having a widget like Column for slivers would be useful. For example for applying the same amount of padding to a heading and a list. Or for allowing abstractions to be created, e.g., a widget for a screen with a SliverAppBar plus some sliver footer and a sliver body as parameter.
Example:
CustomScrollView(
slivers: [
SliverAppBar(/* ... */),
SliverPadding(
padding: EdgeInsets.symmetric(horizontal: 16),
sliver: SliverGroup(
slivers: [
SliverToBoxAdapter(child: Text("Items)),
SliverList(/* many items */)
]
)
)
]
)