You should retrieve the NavController directly from the NavHostFragment. Each NavHost has its own corresponding NavController. Navigating to a destination is done using a NavController, an object that manages app navigation within a NavHost. The starting point of navigation graph is searchFragment but we need to connect Connect destinations layout: The actual layout file used to display content in our destination.label: The name of the layout of the destination that is displayed on the top app bar (if present).name: Denotes the name of destination which in our case is the fragment class.id: Special identification for the destination.It also orchestrates the swapping of destination content in the Nav Host as users move throughout your app. NavController: The NavController is an object that manages app navigation within a Nav Host.The navigation component has a default navhost implementation which displays the fragment destinations. Nav Host: The Nav Host is an empty container that displays all destinations from your navigation graph. It has all individual content areas within your app named destinations and also the possible paths or steps that a user can take through the app.
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