Remove up button from action bar when navigating using BottomNavigationView with Android Navigation UI library

Question

I\'ve created a small app that has three fragments for top-level navigation through a BottomNavigationView. If you launch the app and click on a navigation button on the bottom

Answer 1

Use this instead of setupWithNavController:

navController.addOnNavigatedListener(new NavController.OnNavigatedListener() {
     @Override
     public void onNavigated(@NonNull NavController controller, @NonNull NavDestination destination) {
         toolbar.setTitle(destination.getLabel());
     }
});

Or the equivalent in Kotlin.

The only thing setupWithNavController does is add a listener to change the toolbar title, and creates the up button. If you don't want the up button, just add a listener which changes the toolbar title only.