Type Alias

Category

An opaque type that represents a category.

Declaration 宣言 

typedef struct objc_category *Category;

See Also 参照

Class-Definition Data Structures

Class
An opaque type that represents an Objective-C class.
Method
An opaque type that represents a method in a class definition.
Ivar
An opaque type that represents an instance variable.
objc_property_t
An opaque type that represents an Objective-C declared property.
IMP
A pointer to the start of a method implementation.
SEL
Defines an opaque type that represents a method selector.
objc_method_description
Defines an Objective-C method.
objc_cache
Performance optimization for method calls. Contains pointers to recently used methods.
objc_property_attribute_t
Defines a property attribute.