ios数据存储之二 —— NSKeyedArchiver

 1 #import <Foundation/Foundation.h>
 2
 3 @interface NJContatc : NSObject <NSCoding>
 4
 5 @property (nonatomic, copy) NSString *name;
 6 @property (nonatomic, copy) NSString *phoneNumber;
 7 @property (nonatomic, copy) NSString *email;
 8 @end
 9
10
11 #import "NJContatc.h"
12
13 @implementation NJContatc
14
15 - (void)encodeWithCoder:(NSCoder *)aCoder
16 {
17     [aCoder encodeObject:self.name forKey:@"name"];
18     [aCoder encodeObject:self.phoneNumber forKey:@"number"];
19 }
20
21 - (id)initWithCoder:(NSCoder *)aDecoder
22 {
23     if (self = [super init]) {
24         self.name = [aDecoder decodeObjectForKey:@"name"];
25         self.phoneNumber = [aDecoder decodeObjectForKey:@"number"];
26     }
27     return self;
28 }
29 @end

存储：

[NSKeyedArchiver archiveRootObject:self.contatcs toFile:contactsPath]; // 此种情况存的是contacts的集合

[NSKeyedArchiver archiveRootObject:self.contact toFile:contactsPath]; // 此种情况存的contact对象

读取：

　        self.contatcs =  [NSKeyedUnarchiver unarchiveObjectWithFile:contactsPath]; // 此种情况获取的是contact的集合

　　      self.contact =  [NSKeyedUnarchiver unarchiveObjectWithFile:contactsPath]; // 此种情况获取的是contact对象