How to use NSTimer ??

hi guys , this is my first ipost😉 In objective c, many times u need to use countdown in your iapps  so simple code for same first declare Nstimer object  and one UILabel (to show count down timing on app )in .h file @interface numberSeqViewController : UIViewController { NSTimer * countDown; UILabel* Timerlbl; } @property(nonatomic,retain) […]