How to hide actionbar in some fragments with Android Navigation Components?

Issue

I am using android navigation components to navigate fragments. I can easily set action bar by using this code in the Main Activity :

    NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
    NavigationUI.setupActionBarWithNavController(this, navController, appBarConfiguration);

But If I want to hide the supportActionbar in some of the fragments then what should be the best approach?

Solution

For the fragments that you want to hide the SupportActionBar, you can hide it in onResume() with .hide(), and show it again in onStop() with .show()

@Override
public void onResume() {
    super.onResume();
    ActionBar supportActionBar = ((AppCompatActivity) requireActivity()).getSupportActionBar();
    if (supportActionBar != null)
        supportActionBar.hide();
}

@Override
public void onStop() {
    super.onStop();
    ActionBar supportActionBar = ((AppCompatActivity) requireActivity()).getSupportActionBar();
    if (supportActionBar != null)
        supportActionBar.show();
}

Answered By - Zain