為什么80%的碼農(nóng)都做不了架構(gòu)師？>>> ??

很多時(shí)候我們都需要將對(duì)象序列化，比如將一個(gè)對(duì)象存入到NSUserDefault 里面去的時(shí)候，由于NSUserDefault支持存入的類(lèi)型有限制，所以很多時(shí)候我們需要將NSObject類(lèi)型的對(duì)象轉(zhuǎn)換成NSData再存入進(jìn)去。

- (id)initWithCoder:(NSCoder *)aDecoder {self = [super init];if (self) {self.country = [aDecoder decodeObjectForKey:@"country"];self.city = [aDecoder decodeObjectForKey:@"city"];self.region = [aDecoder decodeObjectForKey:@"region"];self.street = [aDecoder decodeObjectForKey:@"street"];self.location = [aDecoder decodeObjectForKey:@"location"];}return self; }- (void)encodeWithCoder:(NSCoder *)aCoder {[aCoder encodeObject:_country forKey:@"country"];[aCoder encodeObject:_city forKey:@"city"];[aCoder encodeObject:_region forKey:@"region"];[aCoder encodeObject:_street forKey:@"street"];[aCoder encodeObject:_location forKey:@"location"]; }

當(dāng)你要進(jìn)行對(duì)象拷貝的時(shí)候需要遵循NSCopy協(xié)議

- (id)copyWithZone:(NSZone *)zone {id copy = [[[self class] alloc] init];if (copy) {[copy setId:[self.id copyWithZone:zone]];[copy setNickName:[self.nickName copyWithZone:zone]];}return copy; }

轉(zhuǎn)載于:https://my.oschina.net/megan/blog/181463

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