UILabel中的倒数计时器实现？

Question

I am Implementing a countdown timer in my app. In the functionality, I need to display the remaining time before Jan 1st 2011. In months, days, hours and minutes format. Can any one please help. Thanks in advance.

Answer 1

use an NSTimer which update you're label everytime it's fired

http://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Foundation/Classes/NSTimer_Class/Reference/NSTimer.html