Share your experience!
I am thinking about creating an android app, but before I start I need to know is it possible to enable/disable extended standby mode programatically? If yes, what code I have to use?
I would rather suggest that you go to XDA forums , you'll get more information for devs over there.
I know that asking on XDA is an option, but maybe any dev from Sony will answer here.
Head over to our developer pages instead, most of the Sony staff you find here isn't developers. On the developer pages you find tutorials, guides etc and also contact information.