Android Question Standard Android search - Intercepting exit

[focus330]

I'm using the android standard search. Everythink works well except when user exit from search without doing anythink.
In this case the caller activity doesn't intercept rhe end of the search: Activity_Resume in not affected
I tried to use Activity_WindowFocusChanged. It works but I have many problems in debug mode (there are some posts for this case).
Then the question: Is there another way to capture exit from search when user doesn't write a search string ?

Thanks.