ios - 无法为键(NS.object.0)解码 Employee 类的对象；该类可能在源代码或未链接的库中定义

Question

我试图通过序列化数组将 iPhone 的“员工”对象数组传递给 Apple Watch:

NSData *encodedObject = [NSKeyedArchiver archivedDataWithRootObject:employees];

并将其反序列化为在 Watch 端:

NSMutableArray *employees = [NSKeyedUnarchiver unarchiveObjectWithData:encodedObject];

这是“员工”类:

@interface Employee : NSManagedObject
@property (nonatomic, retain) NSNumber * employeeID;
@property (nonatomic, retain) NSString * name;
@property (nonatomic, retain) NSNumber * age;
@property (nonatomic, retain) NSString * address;
@property (nonatomic, retain) NSString * designation;
@property (nonatomic, retain) NSString * teamName;
@property (nonatomic, retain) NSString * gender;
@property (nonatomic, retain) NSNumber * dateOfJoining;
@end

我是否必须在 Watch 端进行任何更改才能修复此错误？

Answer 1

所以我遇到了完全相同的问题，答案很简单，但自己很难找到。

您只需使用:

• NSKeyedArchiver.setClassName("Employee", for: Employee.self)
  连载前
• NSKeyedUnarchiver.setClass(Employee.self, forClassName: "Employee")
  反序列化之前

任何需要的地方。

看起来 iOS 扩展在类名前加上扩展名。