优先导入头文件
import <objc/runtime.h>
- (void)encodeWithCoder:(NSCoder *)aCoder {
unsigned int count = 0;
Ivar *ivars = class_copyIvarList([self class], &count);
for (int i = 0; i < count; i++) {
Ivar ivar = ivars[i];
const char *name = ivar_getName(ivar);
NSString *key = [NSString stringWithUTF8String:name];
//归档
[aCoder encodeObject:[self valueForKey:key] forKey:key];
}
free(ivars);
}
- (instancetype)initWithCoder:(NSCoder *)aDecoder {
if (self = [super init]) {
unsigned int count = 0;
Ivar *ivars = class_copyIvarList([self class], &count);
for (int i = 0; i < count; i++) {
Ivar ivar = ivars[i];
const char *name = ivar_getName(ivar);
NSString *key = [NSString stringWithUTF8String:name];
//反归档
id value = [aDecoder decodeObjectForKey:key];
//设置到成员变量身上
[self setValue:value forKey:key];
}
free(ivars);
}
return self;
}
