自定义类型的归档解档
首先创建一个自定义的类
#import <Foundation/Foundation.h>
@interface Student : NSObject
//定义学生类型的几个属性
@property(strong,nonatomic)NSString *name;
@property(assign,nonatomic)int age;
@property(strong,nonatomic)NSString *addr;
@end
#import <UIKit/UIKit.h>
#import "Student.h"
//用宏定义定义一个文件名
#define PATH [ NSHomeDirectory() stringByAppendingPathComponent:@"student.ajb"]
@interface ViewController : UIViewController
//定义一个归档按钮
@property(strong,nonatomic)UIButton *btn;
//定义一个解档按钮
@property(strong,nonatomic)UIButton *btn1;
@end
#import "ViewController.h"
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
//输出文件地址
NSLog(@"%@",PATH);
//对按钮初始化
self.btn=[UIButton buttonWithType:UIButtonTypeRoundedRect];
//指定按钮在视图上的位置及大小
self.btn.frame=CGRectMake(100, 100, 100, 50);
//为按钮添加颜色
self.btn.backgroundColor=[UIColor greenColor];
//给按钮定义一个名称
[self.btn setTitle:@"归档" forState:UIControlStateNormal];
[self.view addSubview:self.btn];
//按钮监听方法
[self.btn addTarget:self action:@selector(test) forControlEvents:UIControlEventTouchUpInside];
self.btn1=[UIButton buttonWithType:UIButtonTypeRoundedRect];
self.btn1.frame=CGRectMake(100, 200, 100, 50);
self.btn1.backgroundColor=[UIColor greenColor];
[self.btn1 setTitle:@"解档" forState:UIControlStateNormal];
[self.view addSubview:self.btn1];
[self.btn1 addTarget:self action:@selector(texta) forControlEvents: UIControlEventTouchUpInside];
}
//归档方法
-(void)test
{//初始化一个学生类型的对象 并给学生的属性赋值
Student *stu=[[Student alloc]init];
stu.name=@"zhangsan";
stu.age=32;
stu.addr=@"guiyang";
NSMutableData *data=[NSMutableData data];
NSKeyedArchiver *archiver=[[NSKeyedArchiver alloc] initForWritingWithMutableData:data];
[archiver encodeObject:stu.name forKey:@"stu.name"];
[archiver encodeInt:stu.age forKey:@"stu.age"];
[archiver encodeObject:stu.addr forKey:@"stu.addr"];
[archiver finishEncoding];
BOOL bol=[data writeToFile:PATH atomically:YES];
NSLog(@"%d",bol);
}
//解档
-(void)texta
{
NSData *data=[NSData dataWithContentsOfFile:PATH];
NSKeyedUnarchiver *unarchiver=[[NSKeyedUnarchiver alloc] initForReadingWithData:data];
NSString *str=[unarchiver decodeObjectForKey:@"stu.name"];
NSString *str1=[unarchiver decodeObjectForKey:@"stu.addr"];
int age=(int)[unarchiver decodeIntForKey:@"stu.age"];
NSLog(@"stu.name=%@\nstu.addr=%@\nage=%d",str,str1,age);
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end
