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Apps Adding action to volume up button

Hi!

I'm trying to develop a very simple app where everytime I press the screen, an action is taken (picture changes, etc etc...)

Can I also assign this fuction to the volume up button? In other words, can "touch the screen" and pressing volume up button do the same?

I explain why I have this question. I would like to remote control my app using the bluetooth remote control of the new selfie sticks. If I assign that option to the volume button (which is the one that the bluetooth remote deals with) can I create an action using the already built selfy bluetooth remote?

Is this possible for Android and iOS?

Before I start exploring code, I would like to know if it is possible.

I thank you in advance for your time.

Regards,

Duarte
 
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