@interface ChronoKit.ActivityPreviewHostingViewController : ChronoKit.PreviewHostingViewController {
    void /* unknown type, empty encoding */ islandSize;
    void /* unknown type, empty encoding */ apertureTopEdgeMetric;
    void /* unknown type, empty encoding */ isLuminanceReduced;
    void /* unknown type, empty encoding */ autoupdatingPreviewView;
    void /* unknown type, empty encoding */ viewCollections;
    void /* unknown type, empty encoding */ environment;
    void /* unknown type, empty encoding */ viewKind;
    void /* unknown type, empty encoding */ stateController;
}

- (void)viewWillLayoutSubviews;
- (void).cxx_destruct;
- (id)initWithCoder:(id)a0;

@end