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AppBarConfiguration.OnNavigateUpListener Interface for providing custom 'up' behavior beyond what is provided by NavController.navigateUp()


AppBarConfiguration Configuration options for NavigationUI methods that interact with implementations of the app bar pattern such as Toolbar, CollapsingToolbarLayout, and ActionBar
AppBarConfiguration.Builder The Builder class for constructing new AppBarConfiguration instances. 
NavigationUI Class which hooks up elements typically in the 'chrome' of your application such as global navigation patterns like a navigation drawer or bottom nav bar with your NavController