//
// ViewController.m
// 初级数据持久化_复杂对象的存储-自定义Student类
//
// Created by YIem on 16/3/2.
// Copyright © 2016年 YIem. All rights reserved.
//

import "ViewController.h"

import "Student.h"

@interface ViewController ()

@end

@implementation ViewController

• (void)viewDidLoad {

  [super viewDidLoad];
  // Do any additional setup after loading the view, typically from a nib.
  self.view.backgroundColor = [UIColor greenColor];
  
  NSString *fileStr =  [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
  
  
  
  Student *stu = [[Student alloc] init];
  stu.name = @"YIem";
  stu.sex = @"男";
  stu.age = 21;
  stu.score = 0.1;
  
  NSString *stuPath = [fileStr stringByAppendingPathComponent:@"/stu.aaa"];
  // 存储复杂类型数据要进行归档 读取进行反归档
  // 归档时会调用NSConding协议方法, 需要在Student类中实现
  // 参数1: 内容
  // 参数2: 文件
  [NSKeyedArchiver archiveRootObject:stu toFile:stuPath];
  // 反归档
  Student *backStu = [NSKeyedUnarchiver unarchiveObjectWithFile:stuPath];
  NSLog(@"姓名: %@ 性别: %@ 年龄: %ld 分数: %.1f", backStu.name, backStu.sex, backStu.age, backStu.score);
  

  }

• (void)didReceiveMemoryWarning {

  [super didReceiveMemoryWarning];
  // Dispose of any resources that can be recreated.

  }

@end

---

---

//
// Student.h
// 初级数据持久化_复杂对象的存储
//
// Created by YIem on 16/3/2.
// Copyright © 2016年 YIem. All rights reserved.
//

import <Foundation/Foundation.h>

import <UIKit/UIKit.h>

@interface Student : NSObject <NSCoding>
@property (nonatomic, copy) NSString *name;
@property (nonatomic, copy) NSString *sex;
@property (nonatomic, assign) NSInteger age;
@property (nonatomic, assign) CGFloat score;
@end

---

//
// Student.m
// 初级数据持久化_复杂对象的存储
//
// Created by YIem on 16/3/2.
// Copyright © 2016年 YIem. All rights reserved.
//

import "Student.h"

@implementation Student

• (void)dealloc
  {

  [_name release];
  [_sex release];
  [super dealloc];

  }

• (void)encodeWithCoder:(NSCoder *)aCoder
  {

  [aCoder encodeObject:self.name forKey:@"name"];
  [aCoder encodeObject:self.sex forKey:@"sex"];
  // *注意: 不同类型数据应用不同方法
  // key可以不与属性同名, 仅仅用来供反归档时对应
  [aCoder encodeInteger:self.age forKey:@"age"];
  [aCoder encodeDouble:self.score forKey:@"score"];

  }

// 用与上面同名

• (instancetype)initWithCoder:(NSCoder *)aDecoder
  {
  self = [super init];
  if (self) {

  self.name = [aDecoder decodeObjectForKey:@"name"];
  self.sex = [aDecoder decodeObjectForKey:@"sex"];
  self.age = [aDecoder decodeIntegerForKey:@"age"];
  self.score = [aDecoder decodeDoubleForKey:@"score"];

  }
  return self;
  }

@end