问题描述
如何创建包含NSNumber的枚举？
i在我的应用程序中具有coredata持久性，一个实体的状态属性在coredata中声明为Integer 16，这意味着它是一个NSNumber
How do I create an enum that contains NSNumber ??i have a coredata persistence in my application, an entity has a status property declared as Integer 16 in coredata that means it is an NSNumber
能够声明我的枚举以便包含NSNumber而不是int，这样我就可以使用它们而不必写这个糟糕的事情
I would love to be able to declare my enum in order to contain NSNumber and not int so i can use them without having to write this awful thing
enum {
ERROR,
INCOMPLETE,
OK
} EventStatus;
[myObjectOnCoredata setStatus: [[NSNumber alloc] initWithInt:INCOMPLETE]];
而仅仅是：
[muObjectOnCoredata setStatus: INCOMPLETE];
我认为应该可以，因为我可以将枚举声明为NSInteger，但这仍然不是很好对我来说
I think it shoul be possible since I can declare the enum as NSInteger, but it still is not good for me
感谢任何帮助
推荐答案
在托管对象为 statusNumber 。
然后
@dynamic statusNumber
- (void)setStatus:(EventStatus)status {
self.statusNumber = [[NSNumber alloc] initWithInt:status]];
}
- (EventStatus)status {
return [self.statusNumber intValue];
}
只需将转换隐藏到实现中即可。
Just hide the conversions into your implementation.
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