在特定日期显示UIAlertView？

Question

I was wondering how I'd make a UIAlertView display on a certain date, for example, users download the iPhone application and then on the 12th August, a predetermined UIAlertView displays? How could I do this?

Thanks!

Answer 1

You should take a look at the UILocalNotification API. It allows you to create and schedule local notification for your application, which will then be fired on the desired date, using a badge/popover/sound (same settings as for the remote notification API).

For your case you should specifically take a look at the fire date . Sample code would look moreless like this:

UILocalNotification *localNotification = [[UILocalNotification alloc] init];
localNotification.alertBody = @"Your message here";
localNotification.fireDate = [NSDate dateWithTimeIntervalSinceNow:60*60];
[[UIApplication sharedApplication] scheduleLocalNotification:localNotification];

This will fire a local notification with a "Your message here" text in one hour.