Registering a Notification in iPhone SDK 3.0

Question

In iPhone SDK 3.0, I would like to register for a notification, which would alert my application when a certain time is reached. Is it possible? Thanks

Answer 1

Assuming you have a NSDate in the variable date, and want to fire the method dateIsHere: at that date, do this:

NSTimer* timer = [[NSTimer alloc] initWithFireDate:date
                                          interval:0.0f
                                            target:self
                                          selector:@selector(dateIsHere:)
                                          userInfo:nil
                                           repeats:NO];
[[NSRunLoop mainRunLoop] addTimer:timer
                          forMode:NSDefaultRunLoopMode];
[timer release];