CFBundleIconFile icon NSExtension NSExtensionAttributes NSExtensionJavaScriptPreprocessingFile ShareExtensionHelper NSExtensionActivationRule NSExtensionActivationSupportsWebPageWithMaxCount 1 NSExtensionActivationSupportsWebURLWithMaxCount 1 NSExtensionActivationSupportsText NSExtensionPointIdentifier com.apple.share-services NSExtensionPrincipalClass ShareViewController