IOS7 remoteControlReceivedWithEvent is never called

Question

I am creating a test application to find out if I can make my application work with remote control.

I followed the documentation for the apple for handling remote control events, shown at:

https://developer.apple.com/library/IOS/documentation/EventHandling/Conceptual/EventHandlingiPhoneOS/Remote-ControlEvents/Remote-ControlEvents.html#//apple_ref/doc/uid/TP40009541-CH7-SW3

Now I have a dummy application in which there is nothing but calls / implementations of the functions shown in this article.

I put some print statements and found out that

remoteControlReceivedWithEvent is never called.

I did some research and I'm sure I didn’t forget to implement

canBecomeFirstResponder

I even put a print operator in it. A.

When I press the play button on my apple earphone, it just plays music from the music app and does nothing.

Can someone tell me what the problem is?

I am using the latest version of iOS7

================ Edit 1 =====================

I tested the motion and touch event, and they seem to be working fine.

It is just a remote control.