How do I implement a volume shutter?

Media Technologies Audio
kart OP
Created Mar ’19
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I want to implement a volume shutter in my iPhone camera app. When the user presses the volume button, I should get an event to take a photo.


I'm looking for an implementation that meets the following requirements:

  • It should work even if the volume is currently at the maximum, and the user presses the volume up button.
  • There should be no on-screen UI showing that the volume changed.
  • There should be no known cases of Apple rejecting an app that used this technique.


Camera apps like ProCamera, ProCam and Camera+ have the volume shutter that satisfies all these conditions, so it's clearly possible.

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dgwilson OP
May ’23

Hmmm, did you every get an answer to this? I've got the exact same question.

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How do I implement a volume shutter?
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