UIReferenceLibraryViewController系统词典

/*! Returns YES if any installed dictionary has a definition for the provided term.
*/

• (BOOL)dictionaryHasDefinitionForTerm:(NSString *)term;

/*! Initializes an instance of a UIReferenceLibraryViewController with the term provided.
*/

• (instancetype)initWithTerm:(NSString *)term NS_DESIGNATED_INITIALIZER;

• (instancetype) initWithCoder:(nonnull NSCoder *)aDecoder NS_DESIGNATED_INITIALIZER; // Declared solely for the sake of potential subclassers.

• (instancetype)initWithNibName:(nullable NSString *)nibNameOrNil bundle:(nullable NSBundle *)nibBundleOrNil NS_UNAVAILABLE;

• (instancetype)init NS_UNAVAILABLE;