How to finish "Activity A" since "Activity B"? (Finish an Activity since other)

I'm trying to finish the Activity A since Activity B when it will finish too. The Activity B was launches since Actvity A.

So I've paused the 开发者_C百科Activity A. How can I do it?

You may try using startActivityForResult() on the Activity A to invoke the Activity B.

And then, before calling finish() on the Activity B, you should call setResult() and call finish() on the Activity A in onActivityResult()

Example here