In Android Navigation Architecture, how can I call one of destination fragments' methods from the host (activity)

Question

I use Navigation Architecture in my project and I have some fragments as destinations. Its host is my MainActivity. Now I want to call one of my destinations' methods from the host (MainActivity). What should I do?

Answer 1

You need to get the navController and then call the destination fragment by action I'd or destination I'd as defined in your navigationgraph.xml

Refer Android doc for navigating to destination section: https://developer.android.com/guide/navigation/navigation-getting-started#java

//Sample code

Navigation.findNavController(view).navigate(R.id.viewTransactionsAction);