Xcode 12. Value of type 'AVCapturePhotoOutput' has no member 'supportedFlashModes'

Question

In new Xcode 12, there is an error: Value of type 'AVCapturePhotoOutput' has no member 'supportedFlashModes' when i try to reach https://developer.apple.com/documentation/avfoundation/avcapturephotooutput/1648766-supportedflashmodes Any suggestions?

I'm having the same issue. Looks like it could have accidentally marked as private looking at this post: https://developer.apple.com/forums/thread/86810 — Andy Heard, Sep 18 '20 at 11:31

score 9 · Answer 1 · answered Sep 18 '20 at 11:33

9

Seems to be a bug on Xcode 12, but you can workaround it using macro conditions:

#if !targetEnvironment(simulator)
guard stillImageOutput?.supportedFlashModes.contains(mode) == true else { return }
//rest of your code
#endif

answered Sep 18 '20 at 11:33

bguidolim

367
2
9

What is the `mode` value please? – King Sep 24 '20 at 11:33
I still get the error. `backCamera.hasFlash && self.stillImageOutput.supportedFlashModes.contains(mode)` – King Sep 24 '20 at 11:37
`mode` is an `AVCaptureDevice.FlashMode` value, it's just an example. – bguidolim Sep 24 '20 at 15:03

score 1 · Accepted Answer · answered Sep 28 '20 at 19:09

As @Andy Heard wrote:

Our apologies. For apps using Swift 3.2 or Swift 4.0, several AVFoundation capture APIs (public extensions on external protocol) were inadvertently marked private in Xcode 9.

The following AVFoundation API are temporarily unavailable:

AVCaptureDevice.Format.supportedColorSpaces

AVCaptureDevice.supportedFlashModes

AVCapturePhotoOutput.availablePhotoPixelFormatTypes

AVCapturePhotoOutput.availableRawPhotoPixelFormatTypes

AVCapturePhotoSettings.availablePreviewPhotoPixelFormatTypes

As a workaround you can use the SwiftPrivate versions of these API by prepending each API with double underscore (__). For example, change AVCaptureDevice.Format.supportedColorSpaces to AVCaptureDevice.Format.__supportedColorSpaces.

score 0 · Answer 3 · answered Oct 07 '20 at 20:49

For the XCode 12 regression (sigh), you can use the __ version like so

    var flashModesSupported: [AVCaptureDevice.FlashMode] {
        #if targetEnvironment(simulator)
        return self.photoOutput.__supportedFlashModes.compactMap { AVCaptureDevice.FlashMode.init(rawValue: $0.intValue) }
        #else
        return self.photoOutput.supportedFlashModes
        #endif
    }

There was a report this did not trigger SPI (so, safe to submit to app store)

score 0 · Answer 4 · edited Aug 02 '21 at 12:28

0

You can try this:

let device2 = AVCapturePhotoOutput()

if (device2.supportedFlashModes.contains(.auto)){

} else {
            
}

edited Aug 02 '21 at 12:28

Parzival

2,051
4
14
32

answered Jul 31 '21 at 20:38

Faiz Ul Hassan

191
1
5

Xcode 12. Value of type 'AVCapturePhotoOutput' has no member 'supportedFlashModes'

4 Answers4