自定义的对象的解档和归档

 

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如果想对自己自定义的类进行解档和归档的话 必须遵循一个协议：NSCoding

Student.h 文件

#import 
     
      @interface Student : NSObject
      
       @property(nonatomic,strong)NSString *name;@property(nonatomic,assign)int age;-(instancetype)initWithName:(NSString *)name AndAge:(int)age;@end
      
     

Student.m 文件

#import "Student.h"@implementation Student- (instancetype)initWithName:(NSString *)name AndAge:(int)age{    self = [super init];    if (self) {        _age=age;        _name=name;    }    return self;}//解答时候调用 是一个初始化的方法-(instancetype)initWithCoder:(NSCoder *)aDecoder{    self=[super init];    if (self) {        _name=[aDecoder decodeObjectForKey:@"name"];        _age=(int)[aDecoder decodeIntegerForKey:@"age"];    }    return self;}//归档调用该方法-(void)encodeWithCoder:(NSCoder *)aCoder{    NSLog(@"encodeWithCoder");    [aCoder encodeObject:_name forKey:@"name"];    [aCoder encodeInteger:_age forKey:@"age"];    }-(NSString *)description{    return [NSString stringWithFormat:@"name=%@,age=%d",_name,_age];}@end

客户端代码

#import "ViewController.h"#import "Student.h"#define PATH [NSHomeDirectory() stringByAppendingPathComponent:@"Student.qll"]@interface ViewController ()@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];    NSLog(@"%@",PATH);        Student *stu=[[Student alloc]init];    stu.name=@"张F";    stu.age=13;    NSLog(@"%@",stu);    //归档  BOOL bol=[NSKeyedArchiver archiveRootObject:stu toFile:PATH];        if (bol==1) {        NSLog(@"归档成功");    }    //解档        Student *stu1=[NSKeyedUnarchiver unarchiveObjectWithFile:PATH];    NSLog(@"%@",stu1);}- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}@end

运行结果：