In Android Navigation Architecture, how can I check if current Fragment is the last one?
You can compare the ID of the start destination with the ID of the current destination. Something like:
override fun onBackPressed() = when { navController.graph.startDestination == navController.currentDestination?.id -> showQuitDialog() else -> super.onBackPressed()}
Hope it helps.
Try this for any destination (you can find your destination id in the navigation graph):
private fun isDesiredDestination(): Boolean { return with(navController) { currentDestination == graph[R.id.yourDestinationId] }}