IOS - Creating & Using Interval Specific Timers

Question

I am a newbie IOS developer, but I have a good amount of experience in Android development. My question is regarding the creating and use of interval specific timers.

In android I could easily make a timer like this:

timedTimer = new Timer();
    timedTimer.scheduleAtFixedRate(new TimerTask() {
        @Override
        public void run() {

            TimedMethod();
        }

    }, 0, 1000);

Where the interval is 1000 MS and the method TimedMethod() is called on every tick. How would I go about implementing a similar function in IOS?

Thanks so much for reading! Any help at all would be great! :-)

Answer 1

You can use a repeating NSTimer like so:

- (void) startTimer {
   [NSTimer scheduledTimerWithTimeInterval:1 
                                    target:self 
                                  selector:@selector(tick:) 
                                  userInfo:nil
                                   repeats:YES];
}

- (void) tick:(NSTimer *) timer {
   //do something here..

}

Answer 2

Use

[NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(timerCallback) userInfo:nil repeats:YES];

In the same class as you called the above method, create a method called timerCallback. This will be called every time your timer fires; every 1000 milliseconds.