Runtime的使用
(id)initWithCoder:(NSCoder *)decoder
{
if (self = [super init]) {
unsigned int count = ;
Ivar *ivars = class_copyIvarList([self class], &count); for (int i = ; i<count; i++) {
Ivar ivar = ivars[i]; // 获取成员变量
const char *name = ivar_getName(ivar); // 归档
NSString *key = [NSString stringWithUTF8String:name];
id value = [decoder decodeObjectForKey:key]; // 设置
[self setValue:value forKey:key];
} free(ivars);
}
return self;
}
- (void)encodeWithCoder:(NSCoder *)encoder
{ unsigned int count = ;
Ivar *ivars = class_copyIvarList([self class], &count); for (int i = ; i<count; i++) { Ivar ivar = ivars[i]; //获取成员变量
const char *name = ivar_getName(ivar); // 归档
NSString *key = [NSString stringWithUTF8String:name];
id value = [self valueForKey:key];
[encoder encodeObject:value forKey:key];
} free(ivars);
}