Android Question [SOLVED] Is it possible?

Hi All,
I have an activity, what wraps an external aar by inline java.
This inline java code registers broadcastreceivers and can start activities and get back result data in intent.
Additionally it can raise events after started activities finished.
All works well.

My question is that, can I transform this working sample program into a class for further easy using?
So
- class can start activity
- class can receive broadcasts
- class can raise events?

thanks
Steven