Hi!

No you’re not doing anything wrong!

Unfortunately the S7 does not have the capability to use both cameras simultaneously using the standard android camera api

Samsung have done something non-standard in their camera app that overlays the second camera before sending it as a single camera, to get dual camera in their app, however they don’t release how to do that publicly and it’s not a standard API way to do it (it’s basically something samsung baked themselves)

The LG handsets and some sony handsets do however have the ability to use both cameras at the same time. The only way to use 2 cameras on the Samsung handsets is currently to use a USB camera in addition to the device front or back camera

Hi!

That uses samsings proprietary APIs (which basically use their own chip to do picture in picture on the main camera picture – so the app only sees one camera)

Unfortunately Samsung haven’t made this API public, so it’s not possible – if someone managed to reverse engineer it then that’s great, though it’s not public and not a ‘standard’

Sony did it properly (as did LG) and as a result, using the Android standard camera API it can correctly see 2 cameras, however samsungs can’t as they don’t become visible as 2 seperate cameras, but instead ‘merge’ the picture into the ‘first’ camera and I currently have no way to access that proprietary(read: a custom way the manufacturer decided to do it instead of the android way) to get it to work

It sucks, I know, as there’s a lot of S7’s out there!