UNNotificationExtensionDefaultContentHidden
A Boolean value indicating whether only the app extension’s custom view controller is displayed in the notification interface.
See Also
UIKit
IDMessageFilterExtensionNetworkURLILClassificationExtensionSMSReportDestinationIsASCIICapableMSMessagesAppPresentationContextMessagesPrefersRightToLeftPrimaryLanguageRequestsOpenAccessUIDocumentPickerModesUIDocumentPickerSupportedFileTypesUNNotificationExtensionCategoryUNNotificationExtensionInitialContentSizeRatioUNNotificationExtensionOverridesDefaultTitleUNNotificationExtensionUserInteractionEnabled