Sending data from activity to service start

Question

I have a short question. How can I send data from activity to an already running service?

The approach is as follows: I have a service running in the background that launches a new action that only shows the input window. And now I want to send the printed data back to the service. How can I do that?

Thanks in advance for your help! Regards Tobi

Answer 1

Do you know the onBind method of the Service class?