您应使用NSUserDefaults:

You should use NSUserDefaults :

您这样设置:

       NSUserDefaults * defaults = [NSUserDefaults standardUserDefaults];

然后您可以像这样设置新对象:

then you can set new objects like that:

   [defaults setBool:YES forKey:@"bools"];
   [defaults setObject:[NSNumber numberWithInt:14] forKey:@"numbers"];
   [defaults setFloat:60.0 forKey:@"floats"];
   [defaults setObject:@"simple string" forKey:@"strings"];
   [defaults setObject:[NSDate date]  forKey:@"dates"];

当您需要读取值时，可以使用:

when you need to read a value you can use :

   NSUInteger integerFromPrefs = [defaults integerForKey:@"integers"];
   BOOL boolFromPrefs = [defaults boolForKey:@"bools"];
       NSString *stringFromPrefs = [defaults objectForKey:@"bools"];
       etc...

，并记住在每次更改后同步您的更改:

and remember to synchronize your changes after each change:

   [defaults synchronize];

顺便说一句

您可以从应用程序中的任何视图读取和写入NSUserDefaults.

You can read and write to the NSUserDefaults from any view in your application.

修改

要查看NSUserDefaults中的所有数据，可以使用:

To see all of the data in the NSUserDefaults you can use:

  NSLog(@"%@", [[NSUserDefaults standardUserDefaults] dictionaryRepresentation]);

这将打印存储在plist中的所有键和值.

This will print all the keys and values stored in the plist.

祝你好运