package com.duqing.missions; import android.os.Bundle; import androidx.navigation.NavController; import androidx.navigation.Navigation; import androidx.navigation.ui.AppBarConfiguration; import androidx.navigation.ui.NavigationUI; import com.duqing.missions.base.BaseActivity; import com.duqing.missions.databinding.ActivityMainBinding; public class MainActivity extends BaseActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // Passing each menu ID as a set of Ids because each // menu should be considered as top level destinations. AppBarConfiguration appBarConfiguration = new AppBarConfiguration.Builder( R.id.navigation_home, R.id.navigation_dashboard, R.id.navigation_notifications) .build(); NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment_activity_main); NavigationUI.setupActionBarWithNavController(this, navController, appBarConfiguration); NavigationUI.setupWithNavController(binding.navView, navController); } }