Dart APIunself_componentUnselfExtendedSliverNavigationBartransitionBetweenRoutes transitionBetweenRoutes property Null safety bool transitionBetweenRoutes final Implementation final bool transitionBetweenRoutes; unself_component unself_component UnselfExtendedSliverNavigationBar transitionBetweenRoutes property UnselfExtendedSliverNavigationBar class Constructors UnselfExtendedSliverNavigationBar Properties automaticallyImplyLeading automaticallyImplyTitle backgroundColor border brightness hashCode heroTag key largeTitle leading middle opaque padding previousPageTitle runtimeType stretch trailing transitionBetweenRoutes Methods createElement createState debugDescribeChildren debugFillProperties noSuchMethod toDiagnosticsNode toString toStringDeep toStringShallow toStringShort Operators operator ==