Set toolbar title dynamically using navigation-component

Question

I\'m trying to set the toolbar title dynamically, I don\'t know if it\'s possible or not.

Assume I have list of items every item I clicked it\'s open new fragment,

Answer 1

In case you are passing a custom Object as parameter, you can use navController.addOnDestinationChangedListener.

navController.addOnDestinationChangedListener(new NavController.OnDestinationChangedListener() {
    @Override
    public void onDestinationChanged(@NonNull NavController controller, @NonNull NavDestination destination, @Nullable Bundle arguments) {
        Log.i(TAG, "onDestinationChanged");
        switch (destination.getId()) {
            case R.id.mainFragment:
                updateToolbarAndBottomNavigation("Main Title", "Main Subtitle", View.VISIBLE);
                break;
            case R.id.shopFragment:
                updateToolbarAndBottomNavigation("custom title", null, View.VISIBLE);
                break;
            case R.id.shopcartFragment:
                StoreEntity store = (StoreEntity) arguments.get("storeEntity");
                Log.i(TAG, "onDestinationChanged: ShopCartFragment args: "+store.getName());
                updateToolbarAndBottomNavigation(store.getName(), null, View.GONE);
                break;
        }

    }
});

private void updateToolbarAndBottomNavigation(String title, String subtitle, int visibility) {
    getSupportActionBar().setTitle(title);
    getSupportActionBar().setSubtitle(subtitle);
    bottomNavigationView.setVisibility(visibility);
}

Where the arguments.get() was retrieved from android:name in the nav_graph.xml.

I hope it can help more people!