1.storyboard
2.代码
复制代码//
// YYViewController.m
// 01-偏好设置
//
// Created by apple on 14-6-7.
// Copyright (c) 2014年 itcase. All rights reserved.
//
#import "YYViewController.h"
//偏好设置
@interface YYViewController ()
/**
*保存数据
*/
- (IBAction)saveData:(id)sender;
/**
* 读取数据
*/
- (IBAction)readData:(id)sender;
@end
复制代码
@implementation YYViewController
- (IBAction)saveData:(id)sender {
//1.获取NSUserDefaults对象
NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];
//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)
[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];
}
- (IBAction)readData:(id)sender {
//1.获取NSUserDefaults对象
NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];
//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"];
//打印数据
NSLog(@"name=%@,gender=%@,age=%d,height=%.1f",name,gender,age,height);
