Detect changes on NSUserDefaults

Question

I\'m developing an iOS application with latest SDK.

I want to know when a property on NSUserDefaults changes it value.

I have found this, but it

Answer 1

try out the NSUserDefaultsDidChangeNotification with this code snippet:

- (id)init {

  self = [super init];

  if(self) {
     [[NSNotificationCenter defaultCenter] addObserver:self
                                              selector:@selector(defaultsChanged:)
                                                  name:NSUserDefaultsDidChangeNotification
                                                object:nil];
  }
  return self;    
}

- (void)defaultsChanged:(NSNotification *)notification {
  // Get the user defaults
  NSUserDefaults *defaults = (NSUserDefaults *)[notification object];

  NSLog(@"%@", [defaults objectForKey:@"yourIntrestedObject"]);
}

- (void)dealloc {
 [[NSNotificationCenter defaultCenter] removeObserver:self];
}