how to implement Conditional Navigation in navigation architecture components

Question

In the new Navigation architecture component, how to implement conditional navigation?

Currently I have a single activity with LoginFragment and HomeFragment. Based on a

Answer 1

This is how I deal with conditional navigation :

1. Set HomeFragment as the start destination

2. Create a global action for LoginFragment

3. Perform conditional navigation inside onViewCreated :

   // HomeFragment.kt
   override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
       super.onViewCreated(view, savedInstanceState)
   
       if(!appAuth.isAuthenticated()) {
           view.findNavController().navigate(R.id.action_global_loginFragment)
       }
   }