iOS How do I create a "stopwatch" in my iPhone app?

[ethana]

I'm trying to create an app that has a Stopwatch type feature in it, but I want to type as little code as possible to do it. Basically, I want to have exactly what the Clock>Stopwatch iPhone app has and put it right into one of my apps.

Anyone have any clue if this can be done easily? Or do I have to do this the hard way with timers, loops, etc. Please post reusable code if you can. Thanks!

Ethan

 

[detz]

No loop, you app will lock up. Use a timer, easy enough...

[NSTimer scheduledTimerWithTimeInterval1)
target:self
selectorselector(goDude)
userInfo:nil
repeats:YES];

-(void)goDude{
//every second this is called.
}

 

[alexalol]

hi
i am new to iphone programming and just want to know just how accurate can this "stopwatch" app be made; can it only count seconds or can it be made to count tens (0.1s) and hundreds (0.01s) of a second?

 

[detz]

hi
i am new to iphone programming and just want to know just how accurate can this "stopwatch" app be made; can it only count seconds or can it be made to count tens (0.1s) and hundreds (0.01s) of a second?

NSTimeInterval is always specified in seconds; it yields sub-millisecond precision over a range of 10,000 years.

 

[alexalol]

NSTimeInterval is always specified in seconds; it yields sub-millisecond precision over a range of 10,000 years.

ok tnx

is there any other function which is specified in miliseconds?

 

[detz]

ok tnx

is there any other function which is specified in miliseconds?

That function works with milliseconds, give it a try.