0
我试图复制一个对象,我已经实现了NSCopying
协议,它看起来像这样:NSCopying协议不工作
#MyActivity.h
@interface MyActivity : MyModel <NSCopying>
{
NSInteger activityId;
NSInteger userId;
NSInteger checkinId;
NSString *status;
NSString *dateCreated;
NSString *dateModified;
NSString *dateStart;
NSString *dateEnd;
NSString *activityDescription;
NSString *name;
NSString *type;
NSString *repeat;
NSString *routineName;
NSString *startTimezone;
NSString *endTimezone;
GUILocation *location;
}
@property NSInteger activityId;
@property NSInteger userId;
@property NSInteger checkinId;
@property (nonatomic, strong) NSString *status;
@property (nonatomic, strong) NSString *dateCreated;
@property (nonatomic, strong) NSString *dateModified;
@property (nonatomic, strong) NSString *dateStart;
@property (nonatomic, strong) NSString *dateEnd;
@property (nonatomic, strong) NSString *activityDescription;
@property (nonatomic, strong) NSString *name;
@property (nonatomic, strong) NSString *type;
@property (nonatomic, strong) NSString *repeat;
@property (nonatomic, strong) NSString *routineName;
@property (nonatomic, strong) NSString *startTimezone;
@property (nonatomic, strong) NSString *endTimezone;
@property (nonatomic, strong) MyLocation *location;
-(id)copyWithZone:(NSZone *)zone;
...
这是我的执行文件看起来像:
#MyActivity.m
...
-(id)copyWithZone:(NSZone *) zone
{
GUIActivity* copyActivity = [super copyWithZone:zone];
copyActivity.activityId = self.activityId;
copyActivity.userId = self.userId;
copyActivity.checkinId = self.checkinId;
copyActivity.status = self.status;
copyActivity.dateCreated = self.dateCreated;
copyActivity.dateModified = self.dateModified;
copyActivity.dateStart = self.dateStart;
copyActivity.dateEnd = self.dateEnd;
copyActivity.activityDescription = self.activityDescription;
copyActivity.name = self.name;
copyActivity.type = self.type;
copyActivity.repeat = self.repeat;
copyActivity.routineName = self.routineName;
copyActivity.startTimezone = self.startTimezone;
copyActivity.endTimezone = self.endTimezone;
copyActivity.location = [self.location copyWithZone:zone];
return copyActivity;
}
...
当我尝试通过实施该方法复制:
- (void)addActivity:(MyActivity *)activity
toResults:(NSMutableArray *)results
withDate:(NSDate *)date
{
MyActivity *actNow = [activity copy];
actNow.dateStart = [NSDate stringFromDate:date];
[results addObject:actNow];
}
我仍然得到错误:
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[RLMAccessor_v0_MyActivity copyWithZone:]: unrecognized selector sent to instance 0x7fe5e0c2c0a0'
类MyActivity
是RLMObject
一个子类,所以我不知道这有什么关系的问题。有人能指引我朝着正确的方向吗?
没有''为MyModel符合'NSCopying' – Lumialxk