note: add ObjCProtocols here

[NathanWalker]

https://github.com/manijak/nativescript-photoviewer/blob/58f10d8a2b0f3565462590264259e61ea19ab01e/src/photoviewer.ios.ts#L146

This I believe needs the static added, for example:

@NativeClass()
class PhotoViewerDelegateImpl extends NSObject implements NYTPhotosViewControllerDelegate {
  static ObjCProtocols = [NYTPhotosViewControllerDelegate];  // add this
  private _resolve: () => void;