is there timer in ios

Question

I want to create a timer for example to count 2 sec and after each second an nslog type for example 1 sec passed

any suggestion to do that

Answer 1

yes there is NSTimer, use it as -

[NSTimer scheduledTimerWithTimeInterval:2 target:self selector:@selector() userInfo:nil repeats:NO];

Answer 2

What you're after is NSTimer.

Which, I can't not point out, even a cursory search of the framework docs would have turned up. Laziness IS one of the three Virtues of the Programmer, but c'mon.

Answer 3

You can call your NSTimer like this

[NSTimer scheduledTimerWithTimeInterval:2 target:self selector:@selector(changeValue) userInfo:nil repeats:YES];

changeValue function can be like

-(void)changeValue{
    NSLog("calling function after every two seconds");
}