超简易复制Model对象（为后续备忘录设计模式博文做铺垫）

超简易复制Model对象（为后续备忘录设计模式博文做铺垫）

复制整个Model需要实现NSCopy协议，可以想象是非常麻烦的一件事情，今天我跟大家分享一个不需要你做任何操作的复制Model对象的方法，不过，首先你得先去下载开源代码FastCoder辅助才行。

源码如下：

NSObject+ObjectCopy.h 与 NSObject+ObjectCopy.m

//
//  NSObject+ObjectCopy.h
//  FastCoder
//
//  Created by YouXianMing on 15/1/3.
//  Copyright (c) 2015年 YouXianMing. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface NSObject (ObjectCopy)

/**
 *  复制对象
 *
 *  @return 返回复制的对象
 */
- (id)copyObject;

@end

//
//  NSObject+ObjectCopy.m
//  FastCoder
//
//  Created by YouXianMing on 15/1/3.
//  Copyright (c) 2015年 YouXianMing. All rights reserved.
//

#import "NSObject+ObjectCopy.h"
#import "FastCoder.h"

@implementation NSObject (ObjectCopy)

- (id)copyObject {
    id object    = nil;
    NSData *data = nil;
    
    if ((data = [FastCoder dataWithRootObject:self])) {
        object = [FastCoder objectWithData:data];
    }
    
    return object;
}

@end

Model.h 与 Model.m

//
//  Model.h
//  FastCoder
//
//  Created by YouXianMing on 15/1/3.
//  Copyright (c) 2015年 YouXianMing. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface Model : NSObject

@property (nonatomic, strong) NSString      *name;      // 姓名
@property (nonatomic, strong) NSNumber      *age;       // 年龄
@property (nonatomic, strong) NSDate        *birthDate; // 出身日期

@property (nonatomic, strong) NSArray       *subInfo;   // 子信息
@property (nonatomic, strong) NSDictionary  *address;   // 地址

- (void)info;

@end

//
//  Model.m
//  FastCoder
//
//  Created by YouXianMing on 15/1/3.
//  Copyright (c) 2015年 YouXianMing. All rights reserved.
//

#import "Model.h"

@implementation Model

- (void)info {
    NSLog(@"[%@]", self);
    NSLog(@"name       %@", self.name);
    NSLog(@"age        %@", self.age);
    NSLog(@"birthDate  %@", self.birthDate);
    NSLog(@"subInfo    %@", self.subInfo);
    NSLog(@"address    %@", self.address);
    NSLog(@"");
}

@end

控制器源码：

//
//  ViewController.m
//  http://home.cnblogs.com/u/YouXianMing/
//
//  Created by YouXianMing on 15/1/3.
//  Copyright (c) 2015年 YouXianMing. All rights reserved.
//

#import "ViewController.h"
#import "NSObject+ObjectCopy.h"
#import "Model.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    // ModelOne
    Model *model_one    = [Model new];
    model_one.name      = @"YouXianMing";
    model_one.age       = @(27);
    model_one.birthDate = [NSDate date];
    model_one.subInfo   = @[@"iOS", @"C++"];
    model_one.address   = @{@"BeiJing": @"TongZhou"};
    [model_one info];
    
    // ModelTwo
    Model *model_two    = [model_one copyObject];
    model_two.name      = @"QiuLiang";
    model_two.age       = @(28);
    [model_two info];
}

@end

核心的地方：