归档-ios
/****普通对象归档**/
NSString *homePath=NSHomeDirectory();
NSString *fileName=@"test.vse";
NSString *path=[homePath stringByAppendingPathComponent:fileName];
NSArray *array=@[@"abc",@"sea",@123];
BOOL success=[NSKeyedArchiver archiveRootObject:array toFile:path];
if (success) {
NSLog(@"success");
}
/**普通对象解归档***/
NSArray *newArray=[NSKeyedUnarchiver unarchiveObjectWithFile:path];
NSLog(@"%@",newArray);
/***第二种普通对象归档方式***/
NSString *homePath2=NSHomeDirectory();
NSString *fileName2=@"test2.vse";
NSString *path2=[homePath2 stringByAppendingPathComponent:fileName2];
NSMutableData *data=[NSMutableData data];
NSKeyedArchiver *archiver=[[NSKeyedArchiver alloc] initForWritingWithMutableData:data];
NSArray *array2=@[@"abc222",@"se22a",@1233];
[archiver encodeInt:100 forKey:@"age"];
[archiver encodeObject:array2 forKey:@"name"];
[archiver finishEncoding];
BOOL success2=[data writeToFile:path2 atomically:YES];
if (success2) {
NSLog(@"success");
}
/***第二种普通对象解归档方式***/
NSData *data2=[NSData dataWithContentsOfFile:path2];
NSKeyedUnarchiver *unAchiver=[[NSKeyedUnarchiver alloc] initForReadingWithData:data2];
int age=[unAchiver decodeIntForKey:@"age"];
NSArray *name=[unAchiver decodeObjectForKey:@"name"];
NSLog(@"age=%d,name=%@",age,name);
//自定义对象归档
#import <Foundation/Foundation.h>
@interface User : NSObject <NSCoding>
@property (nonatomic,copy) NSString *name;
@property (nonatomic,copy) NSString *email;
@property (nonatomic,copy) NSString *password;
@property (nonatomic,assign) int age;
@end
------------------------------
#import "User.h"
#define AGE @"age"
#define NAME @"name"
#define EMAIL @"email"
#define PASSWORD @"password"
@implementation User:NSObject
//对属性编码,归档时调用
- (void)encodeWithCoder:(NSCoder *)aCoder{
[aCoder encodeInt:_age forKey:AGE];
[aCoder encodeObject:_name forKey:NAME];
[aCoder encodeObject:_email forKey:EMAIL];
[aCoder encodeObject:_password forKey:PASSWORD];
}
//对属性解码,解归档时调用
- (id)initWithCoder:(NSCoder *)aDecoder{
self=[super init];
if (self!=nil) {
_age=[aDecoder decodeIntForKey:AGE];
_name=[aDecoder decodeObjectForKey:NAME];
_email=[aDecoder decodeObjectForKey:EMAIL];
_password=[aDecoder decodeObjectForKey:PASSWORD];
}
return self;
}
//重写description
-(NSString *) description{
NSString *str=[NSString stringWithFormat:@"age=%d,name=%@,email=%@,password=%@",_age,_name,_email,_password];
return str;
}
@end
----------------使用---------------------
/***第三种自定义对象归档方式***/
User *user=[[User alloc] init];
user.name=@"caicai";
user.age=22;
user.email=@"adf@s.com";
user.password=@"skjdsfsd";
NSString *path3=[NSHomeDirectory() stringByAppendingPathComponent:@"user.hs"];
BOOL success3=[NSKeyedArchiver archiveRootObject:user toFile:path3];
if (success3) {
NSLog(@"success");
}
/***自定义对象解归档方式***/
User *user2=[NSKeyedUnarchiver unarchiveObjectWithFile:path];
NSLog(@"%@",user2);
posted on 2014-08-16 12:06 clarenceV1 阅读(171) 评论(0) 编辑 收藏 举报