Dart APIunself_componentUnselfSliverNavigationBarautomaticallyImplyTitle automaticallyImplyTitle property Null safety bool automaticallyImplyTitle final Implementation final bool automaticallyImplyTitle; unself_component unself_component UnselfSliverNavigationBar automaticallyImplyTitle 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 ==