Question

Hi I’m writing an app that has a competition in it.

UIAlertView *alert = [[UIAlertView alloc]

                      initWithTitle:@"Icon Contest!"
                      message:@"Design a 1024 x 1024 pixels icon for Example. The best one will be on the app's icon! Send them to: [e-mail]."
                      delegate:self
                      cancelButtonTitle:@"More Info"
                      otherButtonTitles:@"Yes",@"No", nil];

[alert show];

I have a deadline and would like to have the app to display a different alert when the date 31st of January has finished.

Answer 1

As yinkou points out you can use [NSDate date] to get the current date. But for this it may be simpler if you look into the -timeIntervalSinceNow method on NSDate. You could do something like this:

NSDateComponents *comps = [[NSDateComponents alloc] init];
[comps setDay:31];
[comps setMonth:1];
[comps setYear:2013];
NSDate *date = [[NSCalendar currentCalendar] dateFromComponents:comps];
if ([date timeIntervalSinceNow] < 0.0) {
    //The date has passed
}
else {
    //The date hasn't passed
}