WatchKit Changes for Objective-C WatchKit WKInterfaceDevice.h Added +[WKInterfaceDevice interfaceLayoutDirectionForSemanticContentAttribute:] Added WKInterfaceDevice.layoutDirection Added WKInterfaceLayoutDirection Added WKInterfaceLayoutDirectionLeftToRight Added WKInterfaceLayoutDirectionRightToLeft Added WKInterfaceSemanticContentAttribute Added WKInterfaceSemanticContentAttributeForceLeftToRight Added WKInterfaceSemanticContentAttributeForceRightToLeft Added WKInterfaceSemanticContentAttributePlayback Added WKInterfaceSemanticContentAttributeSpatial Added WKInterfaceSemanticContentAttributeUnspecified WKInterfaceObject.h Added -[WKInterfaceObject setSemanticContentAttribute:]