DelegateActivity.kt

override fun navigate(transition: Transition) {
    val actionId = when (transition) {
        is Transition.WhatIsToEnter -> R.id.action_whatIsLoftFragment_to_enterLoftFragment
        is Transition.EnterToCreation -> R.id.action_enterLoftFragment_to_creationFragment
        is Transition.EnterToJoining -> R.id.action_enterLoftFragment_to_joiningFragment
        is Transition.Joining2WaitForConfirmation ->
            R.id.action_joiningFragment_to_waitForConfirmationFragment
    }
    findNavController(R.id.nav_host_fragment).navigate(actionId)
}