HPAPIAccessTokenPlatform iPhone NSExtension NSExtensionAttributes NSExtensionActivationRule NSExtensionActivationSupportsText NSExtensionActivationSupportsWebPageWithMaxCount 1 NSExtensionActivationSupportsWebURLWithMaxCount 1 NSExtensionJavaScriptPreprocessingFile ShareExtensionHelper NSExtensionMainStoryboard MainInterface NSExtensionPointIdentifier com.apple.share-services