对于归档的对象，其类要服从NSCoding协议
- (void)encodeWithCoder:(NSCoder *)aCoder {
unsigned propertyCount = 0;
objc_property_t *ps = class_copyPropertyList([RepairDetailInfo class], &propertyCount);
for (int i = 0; i < propertyCount; i ++) {
objc_property_t p = ps[i];
const char *propertyName = property_getName(p);
NSString *key = [NSString stringWithUTF8String:propertyName];
id value = [self valueForKey:key];
[aCoder encodeObject:value forKey:key];
}
free(ps);
}
- (instancetype)initWithCoder:(NSCoder *)aDecoder {
if (self = [super init]) {
unsigned propertyCount = 0;
objc_property_t *ps = class_copyPropertyList([RepairDetailInfo class], &propertyCount);
for (int i = 0; i < propertyCount; i ++) {
objc_property_t property = ps[i];
const char *propertyName = property_getName(property);
NSString *key = [NSString stringWithUTF8String:propertyName];
id value = [aDecoder decodeObjectForKey:key];
[self setValue:value forKey:key];
}
free(ps);
}
return self;
}
