How hide snackbar when NavigationView open?

Question

How hide NavigationView when shackbar show?

So that snackbar doesn't overlap NavigationView

Answer 1

You can use Snackbar Callbacks

snackbar.addCallback(new Snackbar.Callback() {

    @Override
    public void onDismissed(Snackbar snackbar, int event) {
      //see Snackbar.Callback docs for event details
      ...  
    }

    @Override
    public void onShown(Snackbar snackbar) {
       drawerLayout.closeDrawer(GravityCompat.START);
    }
  });