How can I wrap Objective-C code for visionOS only?

Question

I have the following code in Objective-C:

if (@available(iOS 13.0, tvOS 13.0, *)) {
    indicator.indicatorView.activityIndicatorViewStyle = UIActivityIndicatorViewStyleLarge;
} else {
    indicator.indicatorView.activityIndicatorViewStyle = UIActivityIndicatorViewStyleWhiteLarge;
}

But this is producing an error.

'UIActivityIndicatorViewStyleWhiteLarge' is unavailable: not available on xrOS

I think I need that first conditional to get run so it doesn't even try to access UIActivityIndicatorViewStyleWhiteLarge.

But when I change the line to if (@available(iOS 13.0, tvOS 13.0, visionOS 1.0, *)). I get the following error:

Unrecognized platform name visionOS

I also tried changing it to xrOS 1.0 (since I heard that some internal usages had it as xrOS for a while. And while I don't get the second compiler error, it does still say it's unavailable.

Any ideas on how to fix this?

Answer 1

Use TARGET_OS_VISION to distinguish RealityKit only targets:

#if TARGET_OS_VISION

#else

#endif // TARGET_OS_VISION

Answer 2

Use TARGET_OS_VISION

#if TARGET_OS_VISION

#else

#endif