./NSAttributedString.h:UIKIT_EXTERN NSString *const NSFontAttributeName NS_AVAILABLE_IOS(6_0); // UIFont, default Helvetica(Neue) 12
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSParagraphStyleAttributeName NS_AVAILABLE_IOS(6_0); // NSParagraphStyle, default defaultParagraphStyle
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSForegroundColorAttributeName NS_AVAILABLE_IOS(6_0); // UIColor, default blackColor
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSBackgroundColorAttributeName NS_AVAILABLE_IOS(6_0); // UIColor, default nil: no background
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSLigatureAttributeName NS_AVAILABLE_IOS(6_0); // NSNumber containing integer, default 1: default ligatures, 0: no ligatures
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSKernAttributeName NS_AVAILABLE_IOS(6_0); // NSNumber containing floating point value, in points; amount to modify default kerning. 0 means kerning is disabled. (note: values other than nil and 0 are unsupported on iOS)
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSStrikethroughStyleAttributeName NS_AVAILABLE_IOS(6_0); // NSNumber containing integer, default 0: no strikethrough
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSUnderlineStyleAttributeName NS_AVAILABLE_IOS(6_0); // NSNumber containing integer, default 0: no underline
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSStrokeColorAttributeName NS_AVAILABLE_IOS(6_0); // UIColor, default nil: same as foreground color
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSStrokeWidthAttributeName NS_AVAILABLE_IOS(6_0); // NSNumber containing floating point value, in percent of font point size, default 0: no stroke; positive for stroke alone, negative for stroke and fill (a typical value for outlined text would be 3.0)
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSShadowAttributeName NS_AVAILABLE_IOS(6_0); // NSShadow, default nil: no shadow
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSTextEffectAttributeName NS_AVAILABLE_IOS(7_0); // NSString, default nil: no text effect
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSAttachmentAttributeName NS_AVAILABLE_IOS(7_0); // NSTextAttachment, default nil
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSLinkAttributeName NS_AVAILABLE_IOS(7_0); // NSURL (preferred) or NSString
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSBaselineOffsetAttributeName NS_AVAILABLE_IOS(7_0); // NSNumber containing floating point value, in points; offset from baseline, default 0
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSUnderlineColorAttributeName NS_AVAILABLE_IOS(7_0); // UIColor, default nil: same as foreground color
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSStrikethroughColorAttributeName NS_AVAILABLE_IOS(7_0); // UIColor, default nil: same as foreground color
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSObliquenessAttributeName NS_AVAILABLE_IOS(7_0); // NSNumber containing floating point value; skew to be applied to glyphs, default 0: no skew
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSExpansionAttributeName NS_AVAILABLE_IOS(7_0); // NSNumber containing floating point value; log of expansion factor to be applied to glyphs, default 0: no expansion
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSWritingDirectionAttributeName NS_AVAILABLE_IOS(7_0); // NSArray of NSNumbers representing the nested levels of writing direction overrides as defined by Unicode LRE, RLE, LRO, and RLO characters. The control characters can be obtained by masking NSWritingDirection and NSTextWritingDirection values. LRE: NSWritingDirectionLeftToRight|NSTextWritingDirectionEmbedding, RLE: NSWritingDirectionRightToLeft|NSTextWritingDirectionEmbedding, LRO: NSWritingDirectionLeftToRight|NSTextWritingDirectionOverride, RLO: NSWritingDirectionRightToLeft|NSTextWritingDirectionOverride,
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSVerticalGlyphFormAttributeName NS_AVAILABLE_IOS(6_0); // An NSNumber containing an integer value. 0 means horizontal text. 1 indicates vertical text. If not specified, it could follow higher-level vertical orientation settings. Currently on iOS, it's always horizontal. The behavior for any other value is undefined.
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSTextEffectLetterpressStyle NS_AVAILABLE_IOS(7_0);
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSPlainTextDocumentType NS_AVAILABLE_IOS(7_0);
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSRTFTextDocumentType NS_AVAILABLE_IOS(7_0);
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSRTFDTextDocumentType NS_AVAILABLE_IOS(7_0);
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSHTMLTextDocumentType NS_AVAILABLE_IOS(7_0);
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSTextLayoutSectionOrientation NS_AVAILABLE_IOS(7_0); // NSNumber containing NSTextLayoutOrientation value. default: NSTextLayoutOrientationHorizontal
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSTextLayoutSectionRange NS_AVAILABLE_IOS(7_0); // NSValue containing NSRange representing a character range. default: a range covering the whole document
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSDocumentTypeDocumentAttribute NS_AVAILABLE_IOS(7_0); // @"DocumentType", one of the document types declared above. For reader methods, this key in options can specify the document type for interpreting the contents. Upon return, the document attributes can contain this key for indicating the actual format used to read the contents. For write methods, this key specifies the format for generating the data.
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSCharacterEncodingDocumentAttribute NS_AVAILABLE_IOS(7_0); // @"CharacterEncoding", NSNumber containing integer specifying NSStringEncoding for the file; default for plain text is the default encoding. This key in options can specify the string encoding for reading the data. Upon return, the document attributes can contain the actual encoding used. For writing methods, this value is used for generating the plain text data.
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSDefaultAttributesDocumentAttribute NS_AVAILABLE_IOS(7_0); // @"DefaultAttributes", NSDictionary containing attributes to be applied to plain files. Used by reader methods. This key in options can specify the default attributes applied to the entire document contents. The document attributes can contain this key indicating the actual attributes used.
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSPaperSizeDocumentAttribute NS_AVAILABLE_IOS(7_0); // @"PaperSize", NSValue containing CGSize (in points)
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSPaperMarginDocumentAttribute NS_AVAILABLE_IOS(7_0); // @"PaperMargin", NSValue containing UIEdgeInsets
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSViewSizeDocumentAttribute NS_AVAILABLE_IOS(7_0); // @"ViewSize", NSValue containing CGSize (in points)
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSViewZoomDocumentAttribute NS_AVAILABLE_IOS(7_0); // @"ViewZoom", NSNumber containing floating point value (100 == 100% zoom)
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSViewModeDocumentAttribute NS_AVAILABLE_IOS(7_0); // @"ViewMode", NSNumber containing integer; 0 = normal; 1 = page layout
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSReadOnlyDocumentAttribute NS_AVAILABLE_IOS(7_0); // @"ReadOnly", NSNumber containing integer; if missing, or 0 or negative, not readonly; 1 or more, readonly. Note that this has nothing to do with the file system protection on the file, but instead, on how the file should be displayed to the user
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSBackgroundColorDocumentAttribute NS_AVAILABLE_IOS(7_0); // @"BackgroundColor", UIColor, representing the document-wide page background color
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSHyphenationFactorDocumentAttribute NS_AVAILABLE_IOS(7_0); // @"HyphenationFactor", NSNumber containing floating point value (0=off, 1=full hyphenation)
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSDefaultTabIntervalDocumentAttribute NS_AVAILABLE_IOS(7_0); // @"DefaultTabInterval", NSNumber containing floating point value, representing the document-wide default tab stop interval, in points
./NSAttributedString.h:UIKIT_EXTERN NSString *const NSTextLayoutSectionsAttribute NS_AVAILABLE_IOS(7_0); // NSArray of dictionaries. Each dictionary describing a layout orientation section. The dictionary can have two attributes: NSTextLayoutSectionOrientation and NSTextLayoutSectionRange. When there is a gap between sections, it's assumed to have NSTextLayoutOrientationHorizontal.
./NSParagraphStyle.h:UIKIT_EXTERN NSString *const NSTabColumnTerminatorsAttributeName NS_AVAILABLE_IOS(7_0); /* An attribute for NSTextTab options. The value is NSCharacterSet. The character set is used to determine the tab column terminating character. The tab and newline characters are implied even if not included in the character set. */
./UIAccessibility.h:UIKIT_EXTERN NSString *const UIAccessibilityVoiceOverStatusChanged NS_AVAILABLE_IOS(4_0);
./UIAccessibilityConstants.h:UIKIT_EXTERN NSString *const UIAccessibilityAnnouncementKeyStringValue NS_AVAILABLE_IOS(6_0);
./UIAccessibilityConstants.h:UIKIT_EXTERN NSString *const UIAccessibilityAnnouncementKeyWasSuccessful NS_AVAILABLE_IOS(6_0);
./UIAccessibilityConstants.h:UIKIT_EXTERN NSString *const UIAccessibilitySpeechAttributePunctuation NS_AVAILABLE_IOS(7_0);
./UIAccessibilityConstants.h:UIKIT_EXTERN NSString *const UIAccessibilitySpeechAttributeLanguage NS_AVAILABLE_IOS(7_0);
./UIAccessibilityConstants.h:UIKIT_EXTERN NSString *const UIAccessibilitySpeechAttributePitch NS_AVAILABLE_IOS(7_0);
./UIActivity.h:UIKIT_EXTERN NSString *const UIActivityTypePostToFacebook NS_AVAILABLE_IOS(6_0);
./UIActivity.h:UIKIT_EXTERN NSString *const UIActivityTypePostToTwitter NS_AVAILABLE_IOS(6_0);
./UIActivity.h:UIKIT_EXTERN NSString *const UIActivityTypePostToWeibo NS_AVAILABLE_IOS(6_0); // SinaWeibo
./UIActivity.h:UIKIT_EXTERN NSString *const UIActivityTypeMessage NS_AVAILABLE_IOS(6_0);
./UIActivity.h:UIKIT_EXTERN NSString *const UIActivityTypeMail NS_AVAILABLE_IOS(6_0);
./UIActivity.h:UIKIT_EXTERN NSString *const UIActivityTypePrint NS_AVAILABLE_IOS(6_0);
./UIActivity.h:UIKIT_EXTERN NSString *const UIActivityTypeCopyToPasteboard NS_AVAILABLE_IOS(6_0);
./UIActivity.h:UIKIT_EXTERN NSString *const UIActivityTypeAssignToContact NS_AVAILABLE_IOS(6_0);
./UIActivity.h:UIKIT_EXTERN NSString *const UIActivityTypeSaveToCameraRoll NS_AVAILABLE_IOS(6_0);
./UIActivity.h:UIKIT_EXTERN NSString *const UIActivityTypeAddToReadingList NS_AVAILABLE_IOS(7_0);
./UIActivity.h:UIKIT_EXTERN NSString *const UIActivityTypePostToFlickr NS_AVAILABLE_IOS(7_0);
./UIActivity.h:UIKIT_EXTERN NSString *const UIActivityTypePostToVimeo NS_AVAILABLE_IOS(7_0);
./UIActivity.h:UIKIT_EXTERN NSString *const UIActivityTypePostToTencentWeibo NS_AVAILABLE_IOS(7_0);
./UIActivity.h:UIKIT_EXTERN NSString *const UIActivityTypeAirDrop NS_AVAILABLE_IOS(7_0);
./UIApplication.h:UIKIT_EXTERN NSString *const UIApplicationInvalidInterfaceOrientationException NS_AVAILABLE_IOS(6_0);
./UIApplication.h:UIKIT_EXTERN NSString *const UITrackingRunLoopMode;
./UIApplication.h:UIKIT_EXTERN NSString *const UIApplicationStatusBarOrientationUserInfoKey; // userInfo dictionary key for status bar orientation
./UIApplication.h:UIKIT_EXTERN NSString *const UIApplicationStatusBarFrameUserInfoKey; // userInfo dictionary key for status bar frame
./UIApplication.h:UIKIT_EXTERN NSString *const UIApplicationLaunchOptionsURLKey NS_AVAILABLE_IOS(3_0); // userInfo contains NSURL with launch URL
./UIApplication.h:UIKIT_EXTERN NSString *const UIApplicationLaunchOptionsSourceApplicationKey NS_AVAILABLE_IOS(3_0); // userInfo contains NSString with launch app bundle ID
./UIApplication.h:UIKIT_EXTERN NSString *const UIApplicationLaunchOptionsAnnotationKey NS_AVAILABLE_IOS(3_2); // userInfo contains object with annotation property list
./UIApplication.h:UIKIT_EXTERN NSString *const UIApplicationProtectedDataWillBecomeUnavailable NS_AVAILABLE_IOS(4_0);
./UIApplication.h:UIKIT_EXTERN NSString *const UIApplicationProtectedDataDidBecomeAvailable NS_AVAILABLE_IOS(4_0);
./UIApplication.h:UIKIT_EXTERN NSString *const UIApplicationLaunchOptionsLocationKey NS_AVAILABLE_IOS(4_0); // app was launched in response to a CoreLocation event.
./UIApplication.h:UIKIT_EXTERN NSString *const UIApplicationLaunchOptionsNewsstandDownloadsKey NS_AVAILABLE_IOS(5_0); // userInfo contains an NSArray of NKAssetDownload identifiers
./UIApplication.h:UIKIT_EXTERN NSString *const UIApplicationLaunchOptionsBluetoothCentralsKey NS_AVAILABLE_IOS(7_0); // userInfo contains an NSArray of CBCentralManager restore identifiers
./UIApplication.h:UIKIT_EXTERN NSString *const UIApplicationLaunchOptionsBluetoothPeripheralsKey NS_AVAILABLE_IOS(7_0); // userInfo contains an NSArray of CBPeripheralManager restore identifiers
./UIApplication.h:UIKIT_EXTERN NSString *const UIContentSizeCategoryExtraSmall NS_AVAILABLE_IOS(7_0);
./UIApplication.h:UIKIT_EXTERN NSString *const UIContentSizeCategorySmall NS_AVAILABLE_IOS(7_0);
./UIApplication.h:UIKIT_EXTERN NSString *const UIContentSizeCategoryMedium NS_AVAILABLE_IOS(7_0);
./UIApplication.h:UIKIT_EXTERN NSString *const UIContentSizeCategoryLarge NS_AVAILABLE_IOS(7_0);
./UIApplication.h:UIKIT_EXTERN NSString *const UIContentSizeCategoryExtraLarge NS_AVAILABLE_IOS(7_0);
./UIApplication.h:UIKIT_EXTERN NSString *const UIContentSizeCategoryExtraExtraLarge NS_AVAILABLE_IOS(7_0);
./UIApplication.h:UIKIT_EXTERN NSString *const UIContentSizeCategoryExtraExtraExtraLarge NS_AVAILABLE_IOS(7_0);
./UIApplication.h:UIKIT_EXTERN NSString *const UIContentSizeCategoryAccessibilityMedium NS_AVAILABLE_IOS(7_0);
./UIApplication.h:UIKIT_EXTERN NSString *const UIContentSizeCategoryAccessibilityLarge NS_AVAILABLE_IOS(7_0);
./UIApplication.h:UIKIT_EXTERN NSString *const UIContentSizeCategoryAccessibilityExtraLarge NS_AVAILABLE_IOS(7_0);
./UIApplication.h:UIKIT_EXTERN NSString *const UIContentSizeCategoryAccessibilityExtraExtraLarge NS_AVAILABLE_IOS(7_0);
./UIApplication.h:UIKIT_EXTERN NSString *const UIContentSizeCategoryAccessibilityExtraExtraExtraLarge NS_AVAILABLE_IOS(7_0);
./UIApplication.h:UIKIT_EXTERN NSString *const UIContentSizeCategoryNewValueKey NS_AVAILABLE_IOS(7_0); // NSString instance with new content size category in userInfo
./UICollectionViewFlowLayout.h:UIKIT_EXTERN NSString *const UICollectionElementKindSectionHeader;
./UICollectionViewFlowLayout.h:UIKIT_EXTERN NSString *const UICollectionElementKindSectionFooter;
./UIFontDescriptor.h:UIKIT_EXTERN NSString *const UIFontDescriptorFamilyAttribute NS_AVAILABLE_IOS(7_0);
./UIFontDescriptor.h:UIKIT_EXTERN NSString *const UIFontDescriptorNameAttribute NS_AVAILABLE_IOS(7_0);
./UIFontDescriptor.h:UIKIT_EXTERN NSString *const UIFontDescriptorFaceAttribute NS_AVAILABLE_IOS(7_0);
./UIFontDescriptor.h:UIKIT_EXTERN NSString *const UIFontDescriptorSizeAttribute NS_AVAILABLE_IOS(7_0);
./UIFontDescriptor.h:UIKIT_EXTERN NSString *const UIFontDescriptorVisibleNameAttribute NS_AVAILABLE_IOS(7_0);
./UIFontDescriptor.h:UIKIT_EXTERN NSString *const UIFontDescriptorMatrixAttribute NS_AVAILABLE_IOS(7_0); // An NSValue containing a CGAffineTransform. (default: identity matrix)
./UIFontDescriptor.h:UIKIT_EXTERN NSString *const UIFontDescriptorCharacterSetAttribute NS_AVAILABLE_IOS(7_0); // An NSCharacterSet instance representing a set of Unicode characters covered by the font. (default: supplied by font)
./UIFontDescriptor.h:UIKIT_EXTERN NSString *const UIFontDescriptorCascadeListAttribute NS_AVAILABLE_IOS(7_0); // An NSArray instance. Each member of the array is a sub-descriptor. (default: the system default cascading list for user's locale)
./UIFontDescriptor.h:UIKIT_EXTERN NSString *const UIFontDescriptorTraitsAttribute NS_AVAILABLE_IOS(7_0); // An NSDictionary instance fully describing font traits. (default: supplied by font)
./UIFontDescriptor.h:UIKIT_EXTERN NSString *const UIFontDescriptorFixedAdvanceAttribute NS_AVAILABLE_IOS(7_0); // A float represented as an NSNumber. The value overrides glyph advancement specified by the font. (default: 0.0)
./UIFontDescriptor.h:UIKIT_EXTERN NSString *const UIFontDescriptorFeatureSettingsAttribute NS_AVAILABLE_IOS(7_0); // An array of dictionaries representing non-default font feature settings. Each dictionary contains UIFontFeatureTypeIdentifierKey and UIFontFeatureSelectorIdentifierKey.
./UIFontDescriptor.h:UIKIT_EXTERN NSString *const UIFontDescriptorTextStyleAttribute NS_AVAILABLE_IOS(7_0);
./UIFontDescriptor.h:UIKIT_EXTERN NSString *const UIFontSymbolicTrait NS_AVAILABLE_IOS(7_0);
./UIFontDescriptor.h:UIKIT_EXTERN NSString *const UIFontWeightTrait NS_AVAILABLE_IOS(7_0);
./UIFontDescriptor.h:UIKIT_EXTERN NSString *const UIFontWidthTrait NS_AVAILABLE_IOS(7_0);
./UIFontDescriptor.h:UIKIT_EXTERN NSString *const UIFontSlantTrait NS_AVAILABLE_IOS(7_0);
./UIFontDescriptor.h:UIKIT_EXTERN NSString *const UIFontFeatureTypeIdentifierKey NS_AVAILABLE_IOS(7_0);
./UIFontDescriptor.h:UIKIT_EXTERN NSString *const UIFontFeatureSelectorIdentifierKey NS_AVAILABLE_IOS(7_0);
./UIFontDescriptor.h:UIKIT_EXTERN NSString *const UIFontTextStyleHeadline NS_AVAILABLE_IOS(7_0);
./UIFontDescriptor.h:UIKIT_EXTERN NSString *const UIFontTextStyleBody NS_AVAILABLE_IOS(7_0);
./UIFontDescriptor.h:UIKIT_EXTERN NSString *const UIFontTextStyleSubheadline NS_AVAILABLE_IOS(7_0);
./UIFontDescriptor.h:UIKIT_EXTERN NSString *const UIFontTextStyleFootnote NS_AVAILABLE_IOS(7_0);
./UIFontDescriptor.h:UIKIT_EXTERN NSString *const UIFontTextStyleCaption1 NS_AVAILABLE_IOS(7_0);
./UIFontDescriptor.h:UIKIT_EXTERN NSString *const UIFontTextStyleCaption2 NS_AVAILABLE_IOS(7_0);
./UIGeometry.h:UIKIT_EXTERN NSString *NSStringFromCGPoint(CGPoint point);
./UIGeometry.h:UIKIT_EXTERN NSString *NSStringFromCGSize(CGSize size);
./UIGeometry.h:UIKIT_EXTERN NSString *NSStringFromCGRect(CGRect rect);
./UIGeometry.h:UIKIT_EXTERN NSString *NSStringFromCGAffineTransform(CGAffineTransform transform);
./UIGeometry.h:UIKIT_EXTERN NSString *NSStringFromUIEdgeInsets(UIEdgeInsets insets);
./UIGeometry.h:UIKIT_EXTERN NSString *NSStringFromUIOffset(UIOffset offset);
./UIImagePickerController.h:UIKIT_EXTERN NSString *const UIImagePickerControllerMediaType; // an NSString (UTI, i.e. kUTTypeImage)
./UIImagePickerController.h:UIKIT_EXTERN NSString *const UIImagePickerControllerOriginalImage; // a UIImage
./UIImagePickerController.h:UIKIT_EXTERN NSString *const UIImagePickerControllerEditedImage; // a UIImage
./UIImagePickerController.h:UIKIT_EXTERN NSString *const UIImagePickerControllerCropRect; // an NSValue (CGRect)
./UIImagePickerController.h:UIKIT_EXTERN NSString *const UIImagePickerControllerMediaURL; // an NSURL
./UIImagePickerController.h:UIKIT_EXTERN NSString *const UIImagePickerControllerReferenceURL NS_AVAILABLE_IOS(4_1); // an NSURL that references an asset in the AssetsLibrary framework
./UIImagePickerController.h:UIKIT_EXTERN NSString *const UIImagePickerControllerMediaMetadata NS_AVAILABLE_IOS(4_1); // an NSDictionary containing metadata from a captured photo
./UINibLoading.h:UIKIT_EXTERN NSString * const UINibExternalObjects NS_AVAILABLE_IOS(3_0);
./UINibLoading.h:UIKIT_EXTERN NSString * const UINibProxiedObjectsKey NS_DEPRECATED_IOS(2_0, 3_0);
./UIPageViewController.h:UIKIT_EXTERN NSString * const UIPageViewControllerOptionSpineLocationKey;
./UIPageViewController.h:UIKIT_EXTERN NSString * const UIPageViewControllerOptionInterPageSpacingKey NS_AVAILABLE_IOS(6_0);
./UIPasteboard.h:UIKIT_EXTERN NSString *const UIPasteboardNameGeneral;
./UIPasteboard.h:UIKIT_EXTERN NSString *const UIPasteboardNameFind;
./UIPasteboard.h:UIKIT_EXTERN NSString *const UIPasteboardChangedTypesAddedKey;
./UIPasteboard.h:UIKIT_EXTERN NSString *const UIPasteboardChangedTypesRemovedKey;
./UIPrintError.h:UIKIT_EXTERN NSString *const UIPrintErrorDomain;
./UIResponder.h:UIKIT_EXTERN NSString *const UIKeyInputUpArrow NS_AVAILABLE_IOS(7_0);
./UIResponder.h:UIKIT_EXTERN NSString *const UIKeyInputDownArrow NS_AVAILABLE_IOS(7_0);
./UIResponder.h:UIKIT_EXTERN NSString *const UIKeyInputLeftArrow NS_AVAILABLE_IOS(7_0);
./UIResponder.h:UIKIT_EXTERN NSString *const UIKeyInputRightArrow NS_AVAILABLE_IOS(7_0);
./UIResponder.h:UIKIT_EXTERN NSString *const UIKeyInputEscape NS_AVAILABLE_IOS(7_0);
./UIStateRestoration.h:UIKIT_EXTERN NSString *const UIStateRestorationViewControllerStoryboardKey NS_AVAILABLE_IOS(6_0);
./UIStateRestoration.h:UIKIT_EXTERN NSString *const UIApplicationStateRestorationBundleVersionKey NS_AVAILABLE_IOS(6_0);
./UIStateRestoration.h:UIKIT_EXTERN NSString *const UIApplicationStateRestorationUserInterfaceIdiomKey NS_AVAILABLE_IOS(6_0);
./UIStateRestoration.h:UIKIT_EXTERN NSString *const UIApplicationStateRestorationTimestampKey NS_AVAILABLE_IOS(7_0);
./UIStateRestoration.h:UIKIT_EXTERN NSString *const UIApplicationStateRestorationSystemVersionKey NS_AVAILABLE_IOS(7_0);
./UIStringDrawing.h:UIKIT_EXTERN NSString *const UITextAttributeFont NS_DEPRECATED_IOS(5_0, 7_0, "Use NSFontAttributeName");
./UIStringDrawing.h:UIKIT_EXTERN NSString *const UITextAttributeTextColor NS_DEPRECATED_IOS(5_0, 7_0, "Use NSForegroundColorAttributeName");
./UIStringDrawing.h:UIKIT_EXTERN NSString *const UITextAttributeTextShadowColor NS_DEPRECATED_IOS(5_0, 7_0, "Use NSShadowAttributeName with an NSShadow instance as the value");
./UIStringDrawing.h:UIKIT_EXTERN NSString *const UITextAttributeTextShadowOffset NS_DEPRECATED_IOS(5_0, 7_0, "Use NSShadowAttributeName with an NSShadow instance as the value");
./UITableView.h:UIKIT_EXTERN NSString *const UITableViewIndexSearch NS_AVAILABLE_IOS(3_0);
./UITextInput.h:UIKIT_EXTERN NSString *const UITextInputTextBackgroundColorKey; // Key to a UIColor
./UITextInput.h:UIKIT_EXTERN NSString *const UITextInputTextColorKey; // Key to a UIColor
./UITextInput.h:UIKIT_EXTERN NSString *const UITextInputTextFontKey; // Key to a UIFont
./UIViewController.h:UIKIT_EXTERN NSString *const UIViewControllerHierarchyInconsistencyException NS_AVAILABLE_IOS(5_0);
./UIViewControllerTransitioning.h:UIKIT_EXTERN NSString *const UITransitionContextFromViewControllerKey NS_AVAILABLE_IOS(7_0);
./UIViewControllerTransitioning.h:UIKIT_EXTERN NSString *const UITransitionContextToViewControllerKey NS_AVAILABLE_IOS(7_0);
./UIWindow.h:UIKIT_EXTERN NSString *const UIKeyboardFrameBeginUserInfoKey NS_AVAILABLE_IOS(3_2); // NSValue of CGRect
./UIWindow.h:UIKIT_EXTERN NSString *const UIKeyboardFrameEndUserInfoKey NS_AVAILABLE_IOS(3_2); // NSValue of CGRect
./UIWindow.h:UIKIT_EXTERN NSString *const UIKeyboardAnimationDurationUserInfoKey NS_AVAILABLE_IOS(3_0); // NSNumber of double
./UIWindow.h:UIKIT_EXTERN NSString *const UIKeyboardAnimationCurveUserInfoKey NS_AVAILABLE_IOS(3_0); // NSNumber of NSUInteger (UIViewAnimationCurve)
./UIWindow.h:UIKIT_EXTERN NSString *const UIKeyboardCenterBeginUserInfoKey NS_DEPRECATED_IOS(2_0, 3_2);
./UIWindow.h:UIKIT_EXTERN NSString *const UIKeyboardCenterEndUserInfoKey NS_DEPRECATED_IOS(2_0, 3_2);
./UIWindow.h:UIKIT_EXTERN NSString *const UIKeyboardBoundsUserInfoKey NS_DEPRECATED_IOS(2_0, 3_2);

由 grep 匹配得到，不能保证 完全正确