归档和解档

- (void)viewDidLoad {

    [superviewDidLoad];

    

    // mark - person  归档

    Person * person = [[Personalloc]init];

    person.name = @"张三";

    person.age = 14;

    [NSKeyedArchiverarchiveRootObject:person toFile:@"保存的路径.plist"];

    

    

    // mark - 解档

    Person * person1 = [NSKeyedUnarchiverunarchiveObjectWithFile:@"保存的路径.plist"];

    NSLog(@"%@---%d",person1.name,person1.age);

}

#import <Foundation/Foundation.h>

@interface Person :NSObject<NSCoding>

@property (nonatomic ,copy)NSString * name;

@property (nonatomic ,assign)int age;

@end

#import "Person.h"

@implementation Person

/**

 *  归档 -- encoder

 *

 *  将自定义的对象写入磁盘，并将对象转换成“二进制”

 */

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

    [aCoder encodeObject:_nameforKey:@"userName"];

    [aCoder encodeInt:_ageforKey:@"userAge"];

}

/**

 *  解档 --decoder

 *

 *  将磁盘上保存的二进制数据转成自定义的对象

 *

 *  @return <#return value description#>

 */

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

    if (self = [superinit]) {

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

        _age = [aDecoder decodeIntForKey:@"userAge"];

    }

    return self;

}

@end