Android - Notepad tutorial - lifecycle - some work done twice ?

Question

According to the "Application Fundamentals" article, section "component lifecycle", onResume() is always called when a View becomes active, independent of the previous state.

In the Notepad tutorial, Exercise 3, I have found something confusing in NoteEdit.java:
There is a call to populateFields() in onCreate() as well as in onResume().
Wouldn't it be enough (or even better) to have it only in onResume() ?

In such a small example, it will not do any harm if populateFields() is performed twice, but in a bigger App, things can be different ...

Thanks and Regards,
Markus N.