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Start and Stop NSTimer to perform a task

/ Published in: Objective C
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  1. // Create a timer that call taskToUpdate every 1.0 sec
  2. NSTimer timer = [NSTimer scheduledTimerWithTimeInterval:(1.0) target:self selector:@selector(taskToUpdate) userInfo:nil repeats:YES];
  3.  
  4.  
  5. // Stop the timer if it's running 
  6. // (no way to "stop it" and "run it back", you must "kill it" and "recreate it")
  7. if([timer isValid]){
  8.     [timer invalidate];
  9.     timerAffcheur = nil;
  10. }

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