Dart APIunself_componentUnselfSliverNavigationBartransitionBetweenRoutes transitionBetweenRoutes property Null safety bool transitionBetweenRoutes final Implementation final bool transitionBetweenRoutes; unself_component unself_component UnselfSliverNavigationBar transitionBetweenRoutes property UnselfSliverNavigationBar class Constructors UnselfSliverNavigationBar 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 ==