How to obtain the handler for a secondary activity started by a first activity using an intent?

Question

I have a main activity in my project from which i am starting a secondary activity using an intent. On a separate thread, I want to get the handler of the second activity for send some control messages to the second activity. How can i receive the handler for the second activity which i have started using an intent?

Answer 1

I would begin sending messages to this second activity, when it has been already created. That means, I would create a Handler object in the onCreate() method of this second activity, and pass that handler to the thread you want to send the message from.