Android-Barcode | sample demonstrates a barcode generator | Barcode Processing library

Using Android Studio Kotlin, I'm using Zxing barcode scanner in my app. My app uses the fragment architecture. I am able to scan the barcode from my app from the fragment, but the scan result is returned to the activity. I believe intentionally since the signature requires the activity as input.

My question is, a) how can I get the scanned return value from the fragment call to execute onActivityResult in the fragment rather than in the activity? OR b) get the result received by the activity to be passed back to the fragment?

I'm using the following tutorial Barcode Scanning in Kotlin

The following java based post says to override the function, but that doesn't seem to actuall override the parent as the scanner function signature seems to refer to the activity.

I changed the code to use a nav_graph. Without using the nav_graph, I was getting a fragment not found warning.

Log.d results showing the MainActivity function is called.