private lateinit var appBarConfiguration: AppBarConfiguration private lateinit var enlace: ActivityMainBinding private lateinit var db: FirebaseFirestore

 override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) binding = ActivityMainBinding.inflate(layoutInflater) setContentView(binding.root) db = FirebaseFirestore.getInstance() setSupportActionBar(binding.appBarMain.toolbar) /*binding.appBarMain.fab.setOnClickListener { view -> Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG) .setAction("Action", null).show() }*/ val drawerLayout: DrawerLayout = binding.drawerLayout val navView: NavigationView = binding.navView val navController = findNavController(R.id.nav_host_fragment_content_main) val bundle = Bundle() bundle.putString("email", email) HomeFragment.arguments = bundle // Passing each menu ID as a set of Ids because each // menu should be considered as top level destinations. appBarConfiguration = AppBarConfiguration( setOf( R.id.nav_home, R.id.nav_daily_meal, R.id.nav_favourite, R.id.nav_my_cart ), drawerLayout ) setupActionBarWithNavController(navController, appBarConfiguration) navView.setupWithNavController(navController) }