行

NavigationUI.setupWithNavController(navigationView, navController);

在内部调用setNavigationItemSelectedListener以将目标连接到菜单项（即，当您单击R.id.nav_settings MenuItem时，它会将NavHostFragment中的Fragment替换为设置了android:id="@+id/nav_settings"的Fragment）。此侦听器会覆盖您设置的OnNavigationItemSelectedListener视图，这就是您的自定义逻辑无法运行的原因。
如果要将这两组功能组合在一起，则需要在**setupWithNavController之后调用navigationView.setNavigationItemSelectedListener(this);**，并使用NavigationUI.onNavDestinationSelected()触发默认行为：

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_driver_home);
    Toolbar toolbar = findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    DrawerLayout drawer = findViewById(R.id.drawer_layout);
    NavigationView navigationView = findViewById(R.id.nav_view);
    // Passing each menu ID as a set of Ids because each
    // menu should be considered as top level destinations.
    mAppBarConfiguration = new AppBarConfiguration.Builder(
            R.id.nav_home, R.id.nav_history, R.id.nav_settings,
            R.id.nav_help, R.id.nav_signout)
            .setDrawerLayout(drawer)
            .build();
    NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
    NavigationUI.setupActionBarWithNavController(this, navController, mAppBarConfiguration);
    NavigationUI.setupWithNavController(navigationView, navController);
    // This line needs to be after setupWithNavController()
    navigationView.setNavigationItemSelectedListener(this);

}

@Override
public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {
    NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
    switch (menuItem.getItemId()){
        case R.id.nav_history:
            Toast.makeText(this, "fsdfuxc", Toast.LENGTH_LONG).show();
            break;
        case R.id.nav_signout:
            signOut();
            break;
        default:
            // Trigger the default action of replacing the current
            // screen with the one matching the MenuItem's ID
            NavigationUI.onNavDestinationSelected(menuItem, navController);
    }

    DrawerLayout drawer = (DrawerLayout)findViewById(R.id.drawer_layout);
    drawer.closeDrawer(GravityCompat.START);
    return true;
}

只是一个小样本，基于已接受的答案，但在片段内，没有覆盖注解和使用Kotlin。

bottomNav.setOnNavigationItemSelectedListener {

        when (it.itemId) {
            R.id.share -> {
                shareViaWhatsApp()
            }
            else -> {
                NavigationUI.onNavDestinationSelected(it, navController!!)
            }
        }

        true

    }