calling a method after each 60 seconds in iPhone

Question

I have created an GKSession and as its object is created, it starts search for availability of devices, as

 - (void)session:(GKSession *)session peer:(NSString *)peerID didChangeState:(GKPeerConnectionState)state {

I want to call this method after each 60 seconds, what should I do?

possible duplicate of [How can I create a count down Timer for cocos2d?](http://stackoverflow.com/questions/446717/how-can-i-create-a-count-down-timer-for-cocos2d) — mmmmmm, Apr 01 '13 at 11:33

score 93 · Accepted Answer · answered Apr 15 '11 at 09:10

93

Use NSTimer

NSTimer* myTimer = [NSTimer scheduledTimerWithTimeInterval: 60.0 target: self
                                   selector: @selector(callAfterSixtySecond:) userInfo: nil repeats: YES];

After each 60.0 second , iOS will call the below function

-(void) callAfterSixtySecond:(NSTimer*) t 
{
    NSLog(@"red");
}

answered Apr 15 '11 at 09:10

Jhaliya - Praveen Sharma

31,697
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76

but this is delegate method, called whenever state changed, like from available to unavailabe, – Chatar Veer Suthar Apr 15 '11 at 09:31
1

@Jhaliya: Will it work everytime i.e. if I implement this NSTimer in app delegate, I want the method to be called irrespective of viewcontroller I am in & irrespective of the app state whether in foreground, background or killed. – iYoung Jun 03 '15 at 11:15

score 13 · Answer 2 · answered May 13 '14 at 14:58

13

Once you set NSTimer to scheduleWithTimeInterval it calls it immediately. You can use

  [self performSelector:@selector(doSomething) withObject:nil afterDelay:60.0f];

answered May 13 '14 at 14:58

Gal Marom

8,499
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score 3 · Answer 3 · answered May 09 '16 at 11:30

Use the following code:

 NSTimer* timer = [NSTimer scheduledTimerWithTimeInterval: 60.0 target: self
                               selector: @selector(timerFired:) userInfo: nil repeats: YES];

 - (void)timerFired:(NSTimer*)theTimer{
 if(condition){
       [theTimer isValid]; //recall the NSTimer
       //implement your methods
  }else{
      [theTimer invalidate]; //stop the NSTimer
 }
}

score 2 · Answer 4 · answered Jul 14 '17 at 22:24

2

Swift 3:

Timer.scheduledTimer(withTimeInterval: 60, repeats: true, block: { (timer) in 
print("That took a minute")
})

answered Jul 14 '17 at 22:24

J. Doe

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Anish · Answer 5 · 2011-04-15T09:48:10.133

0

You can use schedular method...

-(void) callFunction:(CCTime)dt 
{
    NSLog(@"Calling...");
}

you can call above function by using this...

[self schedule:@selector(callFunction:) interval:60.0f];

edited Apr 15 '11 at 09:48

answered Apr 15 '11 at 09:24

Anish

2,889
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Yeah..you can unschedule this method whenever you want. – Anish Apr 15 '11 at 09:48

score 0 · Answer 6 · answered Sep 06 '19 at 08:39

0

Swift 5.0

var timer = Timer.scheduledTimer(timeInterval: 60.0, target: self, selector: #selector(updateTimer), userInfo: nil, repeats: true)

@objc func updateTimer() {
   print("1 min passed")
}

answered Sep 06 '19 at 08:39

Gurjinder Singh

9,221
1
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58

calling a method after each 60 seconds in iPhone

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