https://github.com/joecks/android-architecture/blob/dev-todo-mvvm-single-live/todoapp/app/src/main/java/com/example/android/architecture/blueprints/todoapp/tasks/TasksFragment.kt

TasksFragment.kt

// BaseReacteFragment method which auto listenes to viewData updates
override fun applyViewData(viewData: TasksViewData) {
        mTasksFragBinding.viewmodel = viewData
        mListAdapter.tasks = viewData.items
        SnackbarUtils.showMessage(view, viewData.message)
    }

...
// Bind the TasksViewItemActions to the adapter (onItemClick, onItemCheck)
mListAdapter = TasksAdapter(
                ArrayList<Task>(0),
                viewModel
)

...
// Bind onTaskClicked to viewModel
mTasksFragBinding.listener = viewModel