navigatorContainerBuilder property
The builder for the branch Navigator container.
The function responsible for building the container for the branch Navigators. When this function is invoked, access is provided to a List of Widgets representing the branch Navigators, where the the index corresponds to the index of in branches.
The builder function is expected to return a Widget that ensures that the state of the branch Widgets is maintained, for instance by inducting them in the Widget tree.
Implementation
final ShellNavigationContainerBuilder navigatorContainerBuilder;