FlexibleSpaceBarSettings constructor
Creates a Flexible Space Bar Settings widget.
Used by Scaffold and SliverAppBar. child must have a FlexibleSpaceBar widget in its tree for the settings to take affect.
Implementation
const FlexibleSpaceBarSettings({
super.key,
required this.toolbarOpacity,
required this.minExtent,
required this.maxExtent,
required this.currentExtent,
required super.child,
this.isScrolledUnder,
this.hasLeading,
}) : assert(minExtent >= 0),
assert(maxExtent >= 0),
assert(currentExtent >= 0),
assert(toolbarOpacity >= 0.0),
assert(minExtent <= maxExtent),
assert(minExtent <= currentExtent),
assert(currentExtent <= maxExtent);