NSUserDefaults 存储用户名 密码

首先要在 AppDelegate.h里面定义

NSDictionary *userDefaults;

@property (nonatomic, retain) NSDictionary *userDefaults;

在AppDelegate.m里 @synthesize userDefaults;

//本地存储密码

NSUserDefaults *userDefault = [NSUserDefaults standardUserDefaults];

[userDefault setObject:user forKey:@"user"];

[userDefault setObject:pwd forKey:@"pwd"];

AppDelegate *myDelegate = [[UIApplication sharedApplication]delegate];

myDelegate.userDefaults = userDefault;

//取用户名密码

AppDelegate *myDelegate = [[UIApplication sharedApplication]delegate];

NSString *user = [myDelegate.userDefaults valueForKey:@"user"];

NSString *pwd = [myDelegate.userDefaults valueForKey:@"pwd"];

好了，大功告成。