How to write a function that runs every N seconds?

Question

iOS

Good day.
Can you please tell me how to design a function that will be executed every N seconds?
________
And yet, if it's not difficult, tell me, is it possible to urgently stop the intermediate animation at the stage of its execution?
Thank you.

Answer 1

Use NSTimer .

Answer 2

@ManWithBear could you tell me what can be passed to userInfo? I have a parallel repeating method, it is possible to move one object. But as soon as the next "cycle" NSTimer ends, this object moves to its initial position. I understand that object.center is not passed to the next step. How can it be transferred?
Thank you.