#import <Foundation/Foundation.h>

@interface Person : NSObject<NSCoding, NSCopying>

@property (copy,nonatomic)NSString *name;

@property(assign,nonatomic)NSInteger age;

@end

#import "Person.h"

@implementation Person

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

    [aCoder encodeObject:_name forKey:@"name"];

    [aCoder encodeInteger:_age forKey:@"age"];

}

- (id)initWithCoder:(NSCoder *)aDecoder {

    if (self = [super init]) {

        _name = [aDecoder decodeObjectForKey:@"name"];

        _age =[aDecoder decodeIntegerForKey:@"age"];

    }

    return self;

}

//#pragma mark NSCoping

- (id)copyWithZone:(NSZone *)zone {

    Person *copy = [[[self class] allocWithZone:zone] init];

    copy.name = [self.name copyWithZone:zone];

    copy.age = self.age;

    return copy;

}

// 保存

Person *person = [[Person alloc] init];

person.name = _text.text;

person.age = (NSInteger)[_age text];

NSData *data = [NSKeyedArchiver archivedDataWithRootObject:person];

[[NSUserDefaults standardUserDefaults] setObject:data forKey:@"person"];

// 读取

NSData *data = [[NSUserDefaults standardUserDefaults] objectForKey:@"person"];

NSArray *books = [NSKeyedUnarchiver unarchiveObjectWithData:data];

// 保存文件目录

-(NSString*) appStorgeLocation{

    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

    NSString *documentsDirectory=[paths objectAtIndex:];//Documents目录

    return [documentsDirectory stringByAppendingPathComponent:@"lee0000"];

}

// 归档

Person *person = [[Person alloc] init];

person.name = _text.text;

person.age = (NSInteger)[_age text];

NSMutableData *data = [[NSMutableData alloc] init];

NSKeyedArchiver *archiver = [[NSKeyedArchiver alloc] initForWritingWithMutableData:data];

[archiver encodeObject:person forKey:@"kArchivingDataKey"]; //archivingDate的encodeWithCoder方法被调用

[archiver finishEncoding];

//写入文件

[data writeToFile:[self appStorgeLocation] atomically:YES];

// 读取

NSData *data = [[NSMutableData alloc] initWithContentsOfFile:[self appStorgeLocation]];

NSKeyedUnarchiver *unarchiver = [[NSKeyedUnarchiver alloc] initForReadingWithData:data];

//获得类

Person *archivingData = [unarchiver decodeObjectForKey:@"kArchivingDataKey"];// initWithCoder方法被调用

[unarchiver finishDecoding];