androidx.navigation.fragment.NavHostFragment Java Examples

private void onEvent(@NonNull UsernameEditViewModel.Event event) {
  switch (event) {
    case SUBMIT_SUCCESS:
      Toast.makeText(requireContext(), R.string.UsernameEditFragment_successfully_set_username, Toast.LENGTH_SHORT).show();
      NavHostFragment.findNavController(this).popBackStack();
      break;
    case SUBMIT_FAIL_TAKEN:
      Toast.makeText(requireContext(), R.string.UsernameEditFragment_this_username_is_taken, Toast.LENGTH_SHORT).show();
      break;
    case SUBMIT_FAIL_INVALID:
      Toast.makeText(requireContext(), R.string.UsernameEditFragment_username_is_invalid, Toast.LENGTH_SHORT).show();
      break;
    case DELETE_SUCCESS:
      Toast.makeText(requireContext(), R.string.UsernameEditFragment_successfully_removed_username, Toast.LENGTH_SHORT).show();
      NavHostFragment.findNavController(this).popBackStack();
      break;
    case NETWORK_FAILURE:
      Toast.makeText(requireContext(), R.string.UsernameEditFragment_encountered_a_network_error, Toast.LENGTH_SHORT).show();
      break;
  }
}
 

@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.dynamic_navigation_activity);

    if (savedInstanceState == null) {
        final NavHostFragment finalHost = new NavHostFragment();
        getSupportFragmentManager().beginTransaction()
                .replace(R.id.nav_host, finalHost)
                .setPrimaryNavigationFragment(finalHost)
                .commit();
    }
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
  // Make sure this is before calling super.onCreate()
  setTheme(R.style.AppTheme);
  super.onCreate(savedInstanceState);

  MainActBinding binding = MainActBinding.inflate(getLayoutInflater());

  setContentView(binding.getRoot());

  navHostFragment =
      (NavHostFragment) getSupportFragmentManager().findFragmentById(R.id.nav_host_fragment);

  viewModel = viewModelFactory.get(this, MainViewModel.class);

  activityStreams
      .getActivityRequests()
      .as(autoDisposable(this))
      .subscribe(callback -> callback.accept(this));

  // TODO: Remove once we switch to persisted auth tokens / multiple offline users.
  authenticationManager
      .getSignInState()
      .as(autoDisposable(this))
      .subscribe(this::onSignInStateChange);

  navigator.getNavigateRequests().as(autoDisposable(this)).subscribe(this::onNavigate);
  navigator.getNavigateUpRequests().as(autoDisposable(this)).subscribe(__ -> navigateUp());
}
 

@Override
protected void initView() {
    NavHostFragment navHostFragment = (NavHostFragment) getSupportFragmentManager().findFragmentById(R.id.main_host_fragment);
    if (navHostFragment != null) {
        NavigationUI.setupWithNavController(mNavigation, navHostFragment.getNavController());
    }
}
 

@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.navigation_activity);

    Toolbar toolbar = findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    NavHostFragment host = (NavHostFragment) getSupportFragmentManager()
            .findFragmentById(R.id.my_nav_host_fragment);

    if (host != null) {
        NavController navController = host.getNavController();
        mDrawerLayout = findViewById(R.id.drawer_layout);
        NavigationUI.setupActionBarWithNavController(this, navController, mDrawerLayout);
        NavigationView navigationView = findViewById(R.id.nav_view);
        if (navigationView != null) {
            NavigationUI.setupWithNavController(navigationView, navController);
        }
        BottomNavigationView bottomNavView = findViewById(R.id.bottom_nav_view);
        if (bottomNavView != null) {
            NavigationUI.setupWithNavController(bottomNavView, navController);
        }
        navController.addOnNavigatedListener(new NavController.OnNavigatedListener() {
            @Override
            public void onNavigated(@NonNull NavController controller,
                    @NonNull NavDestination destination) {
                String dest;
                try {
                    dest = getResources().getResourceName(destination.getId());
                } catch (Resources.NotFoundException e) {
                    dest = Integer.toString(destination.getId());
                }
                Toast.makeText(NavigationActivity.this, "Navigated to "
                        + dest,
                        Toast.LENGTH_SHORT).show();
                Log.d("NavigationActivity", "Navigated to " + dest);
            }
        });
    }
}
 

@Override
public void onResume() {
    super.onResume();
    NavHostFragment.findNavController(this).navigate(R.id.deep_link_test);
}