useIndicator property
final
If true
, adds a rounded NavigationIndicator behind the selected
destination's icon.
The indicator's shape will be circular if labelType is NavigationRailLabelType.none, or a StadiumBorder if labelType is NavigationRailLabelType.all or NavigationRailLabelType.selected.
If null
, defaults to NavigationRailThemeData.useIndicator. If that is
null
, defaults to ThemeData.useMaterial3.
Implementation
final bool? useIndicator;