iOS - use hardware button to take photo while using live preview

[nmartinez-fieldwire]

I have an app that uses live preview to monitor the camera image and a virtual shutter button to take photos. This works as expected. However, the camera hardware shutter button throws a generic KotlinException error and the live preview is stopped. I am using code from the iOS demo app and experiencing this problem.

How can I take a photo using the hardware shutter button and have it react the same as the takePicture() func in the demo app (alerting me an image has been taken by the hardware, and passing a download url)?

[simago]

@nmartinez-fieldwire
It is a Theta specification that the preview stops when you take a photo.
The exception is probably occurring when trying to get a preview after taking a photo.

You cannot detect when the shutter button is pressed, but you can get the URL of the most recent photo taken.

ThetaRepository.getThetaState() returns ThetaState that includes latestFileUrl , which is the URL of the last saved file.

[nmartinez-fieldwire]

By saving a reference to the latestFileUrl at init, and updating it any time a photo has taken place, I can wait for livePreview to throw an error and compare repeatedly (with a timeout) against the current state.latestFileUrl. When they are not the same, I can assume this was the hardware-triggered photo. If they are the same and the timeout is up, I can assume this was a real error.

Thank you, this is a working solution. It's a bit hacky, so please let me know if there are any updates to the SDK coming that would help this become easier to use.