onQueryTextSubmit
Called when the user submits the query. This could be due to a key press on the keyboard or due to pressing a submit button. The listener can override the standard behavior by returning true to indicate that it has handled the submit request. Otherwise return false to let the SearchView handle the submission by launching any associated intent.
Return
true if the query has been handled by the listener, false to let the SearchView perform the default action.
Parameters
query
the query text that is to be submitted