NSKeyedArchiver的使用

NSKeyedArchiver是加密形式的保存数据。

上代码。

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.

    self.title=@"NSKeyedArchiver";

    [self write];
    [self read];

}

-(void)write
{
    NSDictionary* dataDic = [NSDictionary dictionaryWithObjectsAndKeys:@"李华",@"name",@"女",@"sex",@"20",@"age",nil];
    NSLog(@"----write---dataDic---%@",dataDic);

    NSData *archiveData = [NSKeyedArchiver archivedDataWithRootObject:dataDic];
    NSUserDefaults *archiveDefaults=[NSUserDefaults standardUserDefaults];
    [archiveDefaults setObject:archiveData forKey:@"ARCHIVE"];
    [archiveDefaults synchronize];
}
-(void)read
{

    NSUserDefaults *readDefault=[NSUserDefaults standardUserDefaults];
    NSData *readDic=[readDefault objectForKey:@"ARCHIVE"];

    NSDictionary  *dataDic = [[NSDictionary alloc]initWithDictionary:[NSKeyedUnarchiver unarchiveObjectWithData:readDic]];

    NSLog(@"---read---dataDic---%@",dataDic);

}

打印出的结果：

2014-06-26 09:38:51.375 NSKeyedArchiver的使用[1153:60b] ----write---dataDic---{
    age = 20;
    name = "\U674e\U534e";
    sex = "\U5973";
}
2014-06-26 09:38:51.376 NSKeyedArchiver的使用[1153:60b] ---read---dataDic---{
    age = 20;
    name = "\U674e\U534e";
    sex = "\U5973";
}

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