1 //
 2 //  YYViewController.m
 3 //  01-偏好设置
 4 //
 5 //  Created by apple on 14-6-7.
 6 //  Copyright (c) 2014年 itcase. All rights reserved.
 7 //
 8
 9 #import "YYViewController.h"
10 //偏好设置
11 @interface YYViewController ()
12 /**
13  *保存数据
14  */
15 - (IBAction)saveData:(id)sender;
16 /**
17  *  读取数据
18  */
19 - (IBAction)readData:(id)sender;
20
21 @end
22
23 @implementation YYViewController
24
25 - (IBAction)saveData:(id)sender {
26     //1.获取NSUserDefaults对象
27     NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];
28
29     //2保存数据(如果设置数据之后没有同步, 会在将来某一时间点自动将数据保存到Preferences文件夹下面)
30     [defaults setObject:@"yangyong" forKey:@"name"];
31     [defaults setInteger:23 forKey:@"age"];
32     [defaults setDouble:1.73f forKey:@"height"];
33     [defaults setObject:@"man" forKey:@"gender"];
34
35     //3.强制让数据立刻保存
36     [defaults synchronize];
37 }
38
39 - (IBAction)readData:(id)sender {
40     //1.获取NSUserDefaults对象
41     NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];
42     //读取保存的数据
43     NSString *name=[defaults objectForKey:@"name"];
44     NSString *gender=[defaults objectForKey:@"gender"];
45     NSInteger age=[defaults integerForKey:@"age"];
46     double height=[defaults doubleForKey:@"height"];
47     //打印数据
48     NSLog(@"name=%@,gender=%@,age=%d,height=%.1f",name,gender,age,height);
49 }
50 @end

    //1.获取NSUserDefaults对象NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];//2保存数据[defaults setObject:@"yangyong" forKey:@"name"];[defaults setInteger:23 forKey:@"age"];[defaults setDouble:1.73f forKey:@"height"];[defaults setObject:@"man" forKey:@"gender"];//3.强制让数据立刻保存[defaults synchronize];

   //1.获取NSUserDefaults对象NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];//2.读取保存的数据NSString *name=[defaults objectForKey:@"name"];NSString *gender=[defaults objectForKey:@"gender"];NSInteger age=[defaults integerForKey:@"age"];double height=[defaults doubleForKey:@"height"];