Assigning app functionality to silent/mute switch in iOS

Question

Is it possible to programmatically link the physical mute/silent switch to an app function?

I would like to use the mute/silent switch as a toggle to lock/unlock aspects of an app (not sound-specific, but the app does not rely on audio so mute or not is actually moot. ;)

Answer 1

I think you can do that by capturing the hardware button call back; capturing the callback is explained by @John Fricker here.

But the app may be rejected by apple 'cos as per app store review guidelines

10.5 Apps that alter the functions of standard switches, such as the Volume Up/Down and Ring/Silent switches, will be rejected