Archives and Serialization

在属性列表、JSON和其他平面二进制表示形式之间来回转换对象和值。

主题

Encoding and Decoding Custom Types Make your data types encodable and decodable for compatibility with external representations such as JSON.
typealias Codable A type that can convert itself into and out of an external representation.
protocol NSCoding A protocol that enables an object to be encoded and decoded for archiving and distribution.
protocol NSSecureCoding A protocol that enables encoding and decoding in a manner that is robust against object substitution attacks.

Using JSON with Custom Types Demonstrates approaches for encoding and decoding different kinds of JSON in Swift.
class JSONEncoder An object that encodes instances of a data type as JSON objects.
class JSONDecoder An object that decodes instances of a data type from JSON objects.
class JSONSerialization An object that converts between JSON and the equivalent Foundation objects.

class PropertyListEncoder An object that encodes instances of data types to a property list.
class PropertyListDecoder An object that decodes instances of data types from a property list.
class PropertyListSerialization An object that converts between a property list and one of several serialized representations.

class NSKeyedArchiver An encoder that stores an object’s data to an archive referenced by keys.
protocol NSKeyedArchiverDelegate The optional methods implemented by the delegate of a keyed archiver.
class NSKeyedUnarchiver A decoder that restores data from an archive referenced by keys.
protocol NSKeyedUnarchiverDelegate The optional methods implemented by the delegate of a keyed unarchiver.
class NSCoder An abstract class that serves as the basis for objects that enable archiving and distribution of other objects.