Define NSTimer in header file, so you can handle it if you need
NSTimer *timer;
// Creating a timer that call repeatJob every 1.0 sec
timer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(repeatJob) userInfo:nil repeats:YES];
//killing timer
if([timer isValid]){
[timer invalidate];
timer = nil;
}
//there is no pause and play function for NSTimer, you should kill and recreate it
