Question

I have a void function which just have NSLog(@"Call me"); in its body.

I call it in my view in every ten seconds by using

NSTimer *timer = [NSTimer scheduledTimerWithTimeInterval:10 target:self selector:@selector(yourMethod) userInfo:nil repeats:YES];

But I want it to stop it after 5 iterations. However it goes to infinity. How can I do that?

Answer 1

1) Keep a global variable, that increments from 0 to 5.

  int i = 0;

2) Incement this variable inside your timer function..

-(void) yourFunction:(NSTimer*)timer{
  //do your action

  i++;
  if(i == 5){
     [timer invalidate];
  }
}

3) When creating timer

NSTimer *timer = [NSTimer scheduledTimerWithTimeInterval:10 
                 target:self 
                 selector:@selector(yourMethod:) // <== see the ':', indicates your function takes an argument 
                 userInfo:nil 
                 repeats:YES];